Biology Experiments

NeuLog logger sensors help us get a better grasp of the laws of biology, the very core of that great mechanism that is a living organism. The laws of biochemistry, human physiology, plant physiology and ecology are only some of the phenomena that the logger sensors measure, display and safely store.


		Blood Pressure B-1 ver. 3.2.5 Blood pressure logger sensor Understand the basics of blood pressure. Compare the blood pressure of students in the class. Investigate how external parameters such as exercise affect the blood pressure.

		Diffusion in Biology B-2 ver. 3.2.11 Conductivity logger sensor Study the effect of different concentration gradients of NaCl ions on their diffusion rate by measuring their conductivity.

		Respiration B-3 ver. 3.2.8 Oxygen logger sensor Study the diffusion process of oxygen and carbon dioxide between the alveoli and pulmonary capillaries. Determine the percentage of oxygen in exhaled air while resting and after physical activity.

		Enzyme Activity B-7 ver. 3.2.3 Temperature logger sensor Pressure logger sensor Understand basic concepts of enzyme activity. Learn about the enzyme catalase and how it breaks hydrogen peroxide. Investigate how different quantities of an enzyme affect the enzyme activity rate. Investigate how the temperature affect the enzyme activity rate.

		Thermoregulation and Perspiration B-9 ver. 3.2.7 Relative humidity logger sensor Learn about homeostasis and thermoregulation. Learn about the importance of perspiration. Understand the relationship between perspiration and relative humidity by using a relative humidity sensor.

		Photosynthesis B-10 ver. 3.2.9 CO₂ logger sensor Study the processes of respiration and photosynthesis of a plant by measuring CO2 rates. Learn about gross and net photosynthesis rates.

		Respiration of Germinating Seeds B-11 ver. 3.2.3 CO₂ logger sensor Learn about cellular respiration, dormancy and germination. Compare respiration rates of germinating and non-germinating beans. Investigate the effect of ice cold water on the respiration of the germinating beans.

		Heart Rate and Coughing B-18 ver. 3.2.9 Heart rate & pulse logger sensor study the changes in heart rate at rest and after coughing.

		Heart Rate and Physical Activity B-19 ver. 3.2.12 Heart rate & pulse logger sensor Measure a student’s heart rate at rest. study the effect of two levels of physical activity on the heart rate.

		Soil Moisture B-20 ver. 3.0.5 Soil moisture logger sensor Learn about the mechanism of the soil moisture sensor (tensiometer). Monitor the soil moisture of a plant indoors or outdoors. Understand the effect of temperature on the moisture of the soil.

		Emotional Stress Measurement B-37 ver. 3.2.9 GSR (Galvanic Skin Response) logger sensor Learn about the fight or flight response. Examine how stimulation of the human system (by touch, smell, sight or sound) causes the sweat glands in the hand to secrete sweat. Understand the principles of a polygraph (lie detector).

		Monitoring Yeast Growth B-38 ver. 3.0.5 Two Turbidity logger sensors Learn about the life cycle of yeast. Monitor yeast growth by using a turbidity sensor. Plot a growth curve.

		Electrocardigram logger sensor B-40 ver. 3.0.2 Electrocardigram logger sensor Learn about the electrical activity of the heart. Study the principles of an ECG measurement. Compare normal ECG graphs to those of people with heart conditions.

		The Lungs and Spirometry Parameters B-41 ver. 3.0.4 Spirometer logger sensor Learn about the mechanism of breathing. Learn about lung volumes and capacities. Compare these parameters before and after physical activity. Compare these parameters among different students.

		Temperature Variations in the Human Body B-42 ver. 3.0.5 Infrared thermometer logger sensor Understand the difference between body core temperature and skin temperature. Investigate the change in skin temperature as a function of the body part. Compare skin temperature values of different students in the group.

		Respiration Rates B-43 ver. 3.0.3 Respiration monitor belt logger sensor Learn about the lungs and respiration rates. Measure respiration rates of the students. Compare female and male respiration rates. Compare respiration rates before and after exercise.

		Muscle Strength B-44 ver. 3.0.4 Hand dynamometer logger sensor Learn about the skeletal muscles. Find correlations between dominant hand, gender and more to grip strength.

		Ammonium and Nitrate in an Aquarium B-45 Ammonium logger sensor Nitrate logger sensor Learn about the nitrogen cycle in an aquarium with fish and in a pond. Examine the presence of ammonium and nitrate ions in an aquarium with fish, in different stages of the nitrogen cycle.

Upcoming Experiments:

Osmotic Pressure, Fermentation of Yeast, Effectiveness of Sunscreen Protection, Aerobic Respiration. Physics Experiments, Chemistry Experiments, Environmental Science Experiments, Share Your Experience

USB module USB-200

This is the cornerstone for each and every action we take. It serves as a connection module between all sensors and a computer.Get started by hooking it up with a regular USB to Mini USB camera cable (cable included!) to the computer (PC, Mac, XO, or Linux), attach the sensor or sensors to it and you’re good to go. Read More >>

Battery module Bat-200

Power up your independent sensor or set of sensors with this rechargeable battery module. Check the power levels on its indicating screen and pushbutton switch. Recharge it with a common USB cable. Read More >>

RF Communication module RF-200

The RF module is half the duo needed for a wireless connection between your PC / Display module, and a self supporting chain of sensors.Simply attach one unit to the USB bridge module, and another to a set of independent logger sensors (don’t forget a battery module) and that’s it! More than one chain of sensors? No problem! Attach up to 9 RF communication modules according to your sensor chains required. * No Bluetooth or Wi-Fi required! The unit has everything you need within it! Read More >>

Wi-Fi Communication module WIFI-201 and WIFI-202

The WiFi module allows any NeuLog sensor to connect to computers, tablets and smart phones via wireless communication. All software comes pre-loaded on the module and does not require installation. Students simply turn on the WiFi module and it seeks an access point to connect to wireless devices.

There is no need for software installs, app purchases or software management (saves time and money).
Compatible with Windows PC, Mac IOS, iPhone, iPad and Android devices.
No installation required, just plug and play

*A battery module is required to power the WiFi Module. Read More >>

Panda Multi-Sensor PANDA-1

The NeuLog Panda multi-sensor can be used for any science experiment which utilizes Room Temperature, Light, Barometric pressure, Altitude, Sound, Relative Humidity, Dew-Point, Magnetic Field and G-Acceleration readings.

Panda is used for environmental data collection and other experiments in Natural Science, Biology, Physics and Chemistry.

It is specially designed for primary school level. The multi-sensor comes pre-calibrated so you can start experimentation right out of the box.

Digital Display module VIEW-200

What’s an off-line set of sensors without the VIEW-200 display module? Simply hook it up to the set and let it do the rest. All you have to do is scroll through the data screens – one for each logger sensor. Read More >>

Graphic Display module VIEW-101

In case you don’t wish to use a PC, you may refer to the VIEW-101 graphic display module. The module’s touch-screen interface along with intuitive and attractive graphics enables you to set up an experiment in a speedy and simple fashion. It records the gathered data from up to five different sensors at a time and displays it in both digital and graph forms. Read More >>

Voltage logger sensor NUL-201

This sensor can easily and accurately measure voltages across various resistive, capacitive and inductive components. All you have to do is simply connect its 4 mm plugs into any electric circuit. But that’s not all! The sensors can also measure the voltage of voltaic cells, batteries and power supplies, as well as measure electrode potentials and investigate the charging and discharging of capacitors. This sensor can even measure low voltage AC and DC circuits You can do more though, when used in conjunction with the current sensor, the dependence of the current flowing through the applied voltage can be studied in various electric circuits. The sensor is pre-set factory calibrated and immediately ready to use. Read More >>

Current logger sensor NUL-202

Once this module’s 4 mm plugs are connected into an electric circuit, it becomes an open book. Whether you need to scope and record current in parallel or series, branches of low voltage AC and DC circuits or examine the dependence of the current flow through components, this little module is your can-do unit. The sensor is pre-set factory calibrated and immediately ready to use. Read More >>

Temperature Logger Sensor NUL-203

This sensor is used for most disciplines. A biologist could monitor eco-systems, study photosynthesis and enzymes affected by heat or cold, while a chemist could examine exothermic or endothermic reactions. Furthermore, a physicist may use it to examine heat / energy transfer. No need to use different units for different states. The temperature logger sensor measures in either solids, liquids or gases. The sensor is pre-set factory calibrated and immediately ready to use. Read More >>

Light logger sensor NUL-204

This logger sensor packs an assortment of uses to meet a variety of necessities; from photosynthesis to light emitting chemicals, from light bulbs properties to photovoltaic cells. Whether in the brilliance of the sunny outdoors or a poorly lit classroom, it measures it all! The sensor’s sophisticated sampling rate modes allows for measuring fast light changes such as AC supply connected light bulbs, as well as the steady emission of sunlight. The sensor is pre-set factory calibrated and immediately ready to use. Read More >>

Oxygen logger sensor NUL-205

Whether in the air or dissolved in water, this module can easily and conveniently measure oxygen levels. Useful for measuring oxygen during combustion or oxygen emitting processes such as hydrogen peroxide decomposition. In addition to its free oxygen mode, the logger sensor can also provide data in dissolved-oxygen mode, for instances such as measuring photosynthesis of aquatic plants. The logger sensor is highly efficient both outdoors and inside a classroom lab. Its polarographic (Clark) technology, replaceable membranes, and Delrin® electrodes ensure an intuitive interface combined with easy-maintenance and durability. Sensor calibration is done by a simple 3 sec. press on the sensor push button. Read More >>

pH logger sensor NUL-206

Either in the field or in the classroom, this dependable module provides accurate means of measuring common liquids (such as water, milk, soft drinks, vinegar etc.) for their pH levels, as easily as it measures changing values in titrations or experiments involving antacids. This sensor’s gel filled and sealed reference system, along with an epoxy body for the electrode, effects in accurate hardiness. Sensor calibration is done by inserting it into a pH=7 buffer (or distilled water) and a simple 3 sec. press on the sensor push button. Read More >>

Relative Humidity logger sensor NUL-207

Seemingly a simple box with a hole punctured in it, this sensor offers precise recordings of minute humidity variations. Log relative humidity fluctuations of different weather conditions, and study its effect on tiny organisms such as seedlings or insects. The sensor is pre-set factory calibrated and immediately ready to use. Read More >>

Heart Rate & Pulse logger sensor NUL-208

Resembling a medical pulse meter, this logger sensor accurately records and measures heart rates using an infrared LED transmitter/phototransistor receiver. It allows for comparative blood volume/flow ratings and recording them over time through different levels of stress or effort. The module’s plethysmograph-based electrodes ensure a dependable reading by attaching them to either finger or ear lobe, and feed accurate values on a bimodal level: either a BPM (beats per minute) or an analog arbitrary value of the measured signal mode. The sensor is pre-set factory calibrated and immediately ready to use. Read More >>

Photo Gate logger sensor NUL-209

This sensor efficiently measures time, velocity or acceleration with one or two photo gates and matching timing cards passing through them. The sensor has six modes of operation:

Velocity with a single gate
Acceleration with a single gate
Acceleration with two gates
Velocity and Momentum with two gates
Delta between two gates
Velocities with a timing card

The sensor is pre-set factory calibrated and immediately ready to use. Read More >>

Pressure logger sensor NUL-210

This sensor can be used to monitor chemical reactions that involve gases and to investigate both Boyle’s Law and the Gay-Lussac’s Law for ideal gases. It can also prove useful in studies of weather phenomena and yeast fermentation. The sensor is pre-set factory calibrated and immediately ready to use. Read More >>

Force logger sensor NUL-211

This logger sensor measures push/pull forces and impacts as well as mass to weight relationships. The sensor itself is safely contained with a specially designed hook at the bottom that can be connected to various pulling loads. The sensor’s probe can be hung from a universal laboratory stand. Sensor zeroing is done by a simple 3 sec. press on the sensor push button. Read More >>

Sound logger sensor NUL-212

This logger sensor has the impressive ability to measure the very sounds that are all around us in either fast (microphone) or slow (level) modes. The fast mode succeeds in comparing sound sources, logging them and displaying the results in both numeric or graphic wave form. The slow, and more thorough mode, is able to measure the actual sound pressure level, and display the results in decibels. Be it a tuning fork, a wind chime or a power mower, this unit determines their frequency level to the rate of calibrating an electronic signal generator. Add another unit, and you may now determine the velocity of sound propagation in various media by timing a pulse travelling between them. The sensor is pre-set factory calibrated and immediately ready to use. Read More >>

Motion logger sensor NUL-213

Utilizing a trimodal operation system, this motion logger sensor calculates distance, velocity and acceleration. It effectively operates by transmitting a powerful ultrasonic wave and measuring the time of the echo return. The sensor is pre-set factory calibrated and immediately ready to use. Read More >>

Magnetic Field logger sensor NUL-214

This ultra sensitive magnetic-field sensor unit is capable of measuring even the lowest levels of magnetic fields, that of planet earth being one of them. This single range module measures in milli tesla (mT). The sensor is pre-set factory calibrated and immediately ready to use. Read More >>

Conductivity logger sensor NUL-215

This sensor accurately measures solution electrical conductivity on a tri-range level: microsiemens per centimeter (µS/cm), milligram per liter (mg/L), and parts per million (ppm). It does so with a state of the art probe with two flat electrodes on a pre determined surface, allowing the analysis of the signal behavior. The sensor is pre-set factory calibrated and immediately ready to use. Read More >>

Spirometer logger sensor NUL-216

This smart sensor is a user friendly meter that can calculate the volume of the test subject’s lung by measuring the air flow that passes through its double-ported tube shaped sensor. The calculation is done on a sophisticated software level and the results are displayed in liters. The sensor is pre-set factory calibrated and immediately ready to use. Note: Disposable laminated papers are included with the sensor. A paper must be rolled and put in the tube before using it and exhaling through it. Read More >>

GSR logger sensor NUL-217

The tiniest emotional ripples we unconsciously experience affect our skin’s conductivity. It is exactly these changes that the Galvanic Skin Response (GSR) sensor measures. A sudden noise, curious smell, touch, pain or sounds are just some of the things that trigger those conductivity changing emotions. The sensor is pre-set factory calibrated and immediately ready to use. Read More >>

Electrocardiogram logger sensor NUL-218

Similar in its use to a regular medical ECG (electrocardiogram), this is a rather simple three lead based logger sensor. It presents a heartbeat graph that allows a thorough examination of the heart’s electrical activity from three different angles. Unlike most ECG devices, this unit operates with non-disposable electrodes. The sensor is pre-set factory calibrated and immediately ready to use. Read More >>

Colorimeter logger sensor NUL-219

This module determines the red, orange, green, and blue color components of any given solution by measuring color frequency. Simply turn it on and it will send four colored lights through it. The amount of each beam that passes is recorded and processed. This sensor offers a twofold color analysis and value display: absorption and transparency. The sensor is pre-set factory calibrated and immediately ready to use. Read More >>

CO₂ logger sensor NUL-220

This sensor measures voltage created by a self generated electromechanical reaction between the sensor and carbon dioxide (CO₂) in the very air around it. The results are displayed in ppm (parts of CO₂ per million of air). The sensor is pre-set factory calibrated and immediately ready to use. Read More >>

Barometer logger sensor NUL-221

This sensor was carefully designed to measure barometric pressure, from sea level to mountain top. The displayed results are the full scope of commonly used units. Namely: kPa (kilopascal), atm (atmospheres), in Hg (inches of mercury), mm Hg (millimeters of mercury) and meters (for altitudes). The sensor is pre-set factory calibrated and immediately ready to use. Read More >>

Blood Pressure logger sensor NUL-222

This sensor is very similar to any advanced digital blood pressure meter found in the modern medical arena. Simply slip the cuff onto your test subject’s arm, and let the module do the rest. In less than one minute the unit will map out four complimenting data ranges: systolic blood pressure, diastolic blood pressure, mean arterial pressure and heart rate. The sensor is pre-set factory calibrated and immediately ready to use. Read More >>

Drop Counter logger sensor NUL-223

This module automatically and accurately does the simple, yet tedious function of counting drops and bubbles. Perfect for titrations combined with the pH logger sensor. The sensor is pre-set factory calibrated and immediately ready to use. Read More >>

Flow logger sensor NUL-224

This sensor allows for a stream of water to flow through its inlet and outlet pipes, thus revolving a rotation wheel within it. The wheel is not connected mechanically to anything else, but rather floats on a bearing for minimum friction and the enhancement of its minute accuracy. The measuring is done by monitoring changes in the sensor’s surrounding magnetic field. The sensor is pre-set factory calibrated and immediately ready to use. Read More >>

Force Plate logger sensor NUL-225

This module is in fact a weight scale designed for a multi range of purposes. Simply lay a heavy weight on its surface, or activate a forceful pressure against it, and the logger sensor will measure it. But that’s not all, once a special set of handles are attached, it can also measure pull pressure rather than just weights and presses. The sensor is pre-set factory calibrated and immediately ready to use. Read More >>

Rotary Motion logger sensor NUL-226

This sensor’s smooth running pulley measures angles, rotations, rotation velocity and acceleration: rev/s, rad/s², rad/s The sensor is pre-set factory calibrated and immediately ready to use. Read More >>

Acceleration logger sensor NUL-227

This sophisticated unit measures acceleration on a three dimensional level. And although each is displayed separately, it supplies a full overview of the desired values. The logger sensor measures all the three accelerations at the same time and stores it. We can run an experiment on-line, upload one dimension acceleration, freeze it and upload another, using the off-line method. The sensor is pre-set factory calibrated and immediately ready to use. Read More >>

Salinity logger sensor NUL-228

This sensor detects and measures salt content in a solution in three different ranges: %, ppm, mg/L. The sensor is pre-set factory calibrated and immediately ready to use. Read More >>

Soil Moisture logger sensor NUL-229

This clever and innovative module measures soil moisture by inserting a ceramic tipped, water filled tensiometer into the soil and measuring the resulting partial vacuum pressure. If the soil is wetter than the sensor, water will be pulled in through the ceramic holes, thus decreasing the vacuum. A dry soil measuring will result in the opposite outcome. The vacuum level is rated and logged, reflecting directly on the soil’s moisture levels. The sensor is pre-set factory calibrated and immediately ready to use. Read More >>

UVB logger sensor NUL-230

Skin cancer, cataract, immune suppression and vitamin generation in the human body, are just some of the things affected by UVB radiation. The UVB logger sensor accurately measures the wave length of UV light, which is 280-320 nm (2% of the total UV radiation). The light intensity rates are displayed in mW/m² (milliwatt per square meter). The sensor is pre-set factory calibrated and immediately ready to use. Read More >>

Turbidity logger sensor NUL-231

This sensitive sensor projects and measures light that runs through its solution containing tube. As the solution’s turbidity level is higher, so are the amount/intensiveness light levels. The turbidity measurement units are Nephelometric Turbidity Unit (NTU). The sensor is pre-set factory calibrated and immediately ready to use. Read More >>

UVA logger sensor NUL-232

Photoaging and photochemical smog, are just some of the things affected by UVA radiation. The UVA logger sensor accurately measures the wave length of UVA, which is 320-370 nm (98% of the total UV radiation). The light intensity rates are displayed in mW/m² (milliwatt per square meter). The sensor is pre-set factory calibrated and immediately ready to use. Read More >>

Surface Temperature logger sensor NUL-233

This sensor measures surface temperature. This module has the capability of measuring the temperature (in either Celsius or Fahrenheit) of any surface. The sensor is pre-set factory calibrated and immediately ready to use. Read More >>

Wide Range Temperature logger sensor NUL-234

This hardcore sensor is capable of measuring temperature in extreme heat conditions. From extremely low temperature to as high as that of a flame, the module’s thermocouple sensor measures them all, and displays the results in both Celsius and Fahrenheit. The sensor is pre-set factory calibrated and immediately ready to use. Read More >>

Infrared Thermometer Logger Sensor NUL-235

This logger sensor measures temperature remotely using an infra-red high accurate sensor. It is very useful when access to the sample is either difficult or dangerous. The sensor is pre-set factory calibrated and immediately ready to use. Read More >>

Respiration Monitor Belt Logger Sensor NUL-236

This sensor comes with a belt and measures the air pressure in it. The pressure changes according to the breathing of the subject. From the measured values, the respiration rate can be calculated. The sensor is pre-set factory calibrated and immediately ready to use. Read More >>

Hand Dynamometer Logger Sensor NUL-237

This sensor comes with a hand held unit with a built in strain gauge. It measures the pressing force on the hand held unit. The sensor is pre-set factory calibrated and immediately ready to use. Read More >>

NUL-238 Calcium logger sensor

The NeuLog calcium sensor enables measurements of ionic calcium (Ca²⁺) concentration in aqueous samples. This measurement is very important when evaluating water quality. It can also be used to determine calcium – magnesium by EDTA titration. Read More >>

NUL-239 Chloride logger sensor

The NeuLog chloride sensor can be used to measure the concentration of chloride ions (Cl^–) in aqueous samples. This measurement can be an indication of the salinity of water samples. The sensor can be used to study samples of drinking water with different degrees of chlorination. Read More >>

NUL-240 Ammonium logger sensor

The NeuLog ammonium sensor can be used to measure the concentration of ammonium ions (NH₄⁺) in aqueous samples. It can be used to evaluate the degree of contamination of water due to the use of fertilizers. Ammonium measurements can also be very relevant to study the nitrogen cycle in general and to relate this cycle to plants and algae. Read More >>

NUL-241 Nitrate logger sensor

The NeuLog nitrate sensor can be used to measure the concentration of nitrate ions (NO₃^–) in aqueous samples. Nitrates are used in fertilizers and can contaminate water. Also, untreated human sewage can be a source of nitrate contamination. Nitrate measurements can also be very relevant to study the nitrogen cycle in general and to relate this cycle to plants and algae. Read More >>

NUL-242 Anemometer logger sensor

The NeuLog anemometer sensor enables measurements of wind velocity. Combined with temperature, relative humidity, dew point and barometric pressure sensors, it can be used to make very interesting weather measurements. Read More >>

NUL-243 GPS position logger sensor

The NeuLog GPS position logger sensor determines its latitude, longitude, altitude and horizontal velocity anywhere on earth through signals received from the Global Positioning System. It can be used by itself or together with other NeuLog sensors to perform outdoor experiments in environmental science, physics and more. Read More >>

NUL-245 Dew Point logger sensor

This sensor measures temperature and humidity in a volume and gives the temperature below which the water vapor in that volume of air (at a constant barometric pressure) condenses into liquid water (the dew point). Read More >>

NUL-246 Charge logger sensor

This sensor measures electrostatic charges. It can be seen as a highly sensitive electroscope indicating whether a charge is positive or negative. Other uses are: to explore the nature of static charge, to measure both charge and voltage, to measure charge by induction, quantify the charge on a capacitor or discover the charge distribution on a conducting sphere. Read More >>

Geiger counter logger sensor NUL-247

The most common types of radiation are alpha, beta and gamma. The NeuLog Geiger sensor measures all three types of radiation. The radioactivity of a sample can be measured by counting how many ionizing events occurred in a period of time or as rate (counts per second, for example). Possible experiments that can be performed are: Radioactivity and distance, Lifetime measurements, Biological radioactive markers, measuring half-lives, Radiation shielding, etc. Read More >>

mA Current logger sensor NUL-248

This sensor can be used to measure the current in the mA range, in parallel or series branches of low voltage AC and DC circuits and also to investigate the dependence of the current flow through components on the voltage across them. With its 4 mm plugs it can easily be connected into electric circuits. Read More >>

Resistance logger sensor NUL-249

The sensor measures the current through the resistance and the voltage on it, its output is a resistance value. Using ohm’s law (R = V/I) the resistance is calculated from the current and voltage values. Possible experiments that can be performed are: Electrical components resistance measurements, electrical parallel circuits, electrical series circuits and electronics. Read More >>