This sensor measures angles, rotations, rotation speeds or rotation acceleration. The sensor has a pulley connected to its shaft and the pulley rotation is measured. This sensor has four modes of operation: degrees, rev/s, rad/s, rad/s².

Specifications:

Experiment Duration: 1 seconds to 31 days.

Logger sensor Guide

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.

Specifications:

Experiment Duration: 1 seconds to 31 days.

Logger sensor Guide

This sensor measures relative humidity. It can find use in recording variations with weather conditions and the relative humidity effect on organisms such as seedlings and insects.

It is located in a plastic box with exposure of the sensor being through a hole in the side.

Specifications:

Experiment Duration: 1 seconds to 31 days.

Logger sensor Guide

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 pressure sensor is located in a plastic box. The sensing part is connected to a plastic tube for connection to pressure sources such as a syringe via an adapter.

Specifications:

Experiment Duration: 1 seconds to 31 days.

Logger sensor Guide

This sensor can be used to study various kinds of motion. With six modes of operation, time, velocity or acceleration can be measured with one or two photo gates and associated timing cards, as well as showing pictorially the status (digital 1 or 0) of the voltage output of the photo gate as timing cards pass through it.

The modes of operation are selected by clicking a button on the software screen.

The measured values can be displayed in large numbers or in a table.

The sensor’s six modes of operation are described in the following picture:

1. Velocity with a single gate
2. Acceleration with a single gate
3. Acceleration with two gates
4. Velocity and Momentum with two gates
5. Delta between two gates
6. Velocities with a timing card

Logger sensor Guide

This sensor can be used to measure the static pH values of common liquids (water, milk, soft drinks, vinegar, etc.) as well as the changing values in titrations or experiments such as those looking at the effect of antacids.

The pH sensor is designed for long life in a variety of general purpose situations. Its sealed reference system and gel fill make it easy to use and maintain. With an epoxy body it is a durable electrode for use both in the laboratory and in the field.

Sensor Offset:

This sensor gives a fast response across the full pH range and can be calibrated with a pH = 7 standard buffer solution. After connecting the sensor to a power source (battery module or USB module and PC), insert the sensor into a pH = 7 buffer and press the sensor’s push button for about 3 seconds. The reading will be offset to 7.

Specifications:

Experiment Duration: 1 seconds to 31 days.

Logger sensor Guide

This sensor can be used to make measurements of the level of free oxygen in air or dissolved oxygen in water.

The free oxygen in air mode is used to measure changes in oxygen levels during combustion or in reactions that produce oxygen (hydrogen peroxide decomposition). The dissolved and free oxygen modes are very useful in the study of photosynthesis.

The oxygen sensor is designed for use both in the school laboratory and in the field. It employs easy-to-use polarographic (Clark) technology and replaceable membranes are available for it. The electrode itself is constructed of Delrin® for durability.

With its integral thermistor, it provides dependable temperature-compensated measurements. The thermistor is housed in stainless steel and sealed on the electrode’s outer wall providing fast, accurate readings.

Specifications:

Experiment Duration: 1 seconds to 31 days.

Logger sensor Guide

This is a very sensitive magnetic fields sensor. It can measure a very low level of magnetic fields such as the magnetic field of Earth.

The logger sensor measures the magnetic fields in milli Tesla (mT).

Specifications:

Experiment Duration: 50 milliseconds to 31 days.

Logger sensor Guide