There are different wavelengths of ultra violet light. The UVA wavelength range is 320-370 nm, which is 98% of the total UV radiation. The UVA radiation affects photoaging and also photochemical smog. The intensity of this light is measured in mW/m² (milliwatt per square meter).

Specifications:

Experiment Duration: 1 seconds to 31 days.

Logger sensor Guide

This sensor measures the reflected light that enters into a tube containing a solution. As solution turbidity is higher, more light is reflected and measured by the light sensor, located perpendicular to the light source.

The turbidity measurement units are Nephelometric Turbidity Unit (NTU).

Specifications:

Experiment Duration: 1 seconds to 31 days.

Logger sensor Guide

This is one of our most versatile sensors. It can be used in biology to monitor ecological systems, microbiological cultures and to study the effect of temperature on photosynthesis and enzymatic reactions. In chemistry, to study exothermic or endothermic reactions and how the rate of reaction is affected by temperature; in physics it can be used to study heat/energy transfer.

The sensitive element is within a 180 mm long, 3.2 mm diameter stainless steel tube. This sensor can be used for temperature measurements in solids, liquids or gases.

Specifications:

Experiment Duration: 1 seconds to 31 days.

Logger sensor Guide

This sensor has two modes of operation. In slow mode it can be used to measure sound-pressure level in decibels. In fast mode it can display waveforms of different sound sources such as tuning forks and wind-chimes so that period and frequency can be determined. With two sound sensors, the velocity of propagation of sound in various media could be determined by timing a pulse travelling between them. The sound sensor is located in a plastic box accessible to the atmosphere via a hole in its side.

Specifications:

Experiment Duration: 25 milliseconds to 31 days.

Logger sensor Guide

This logger sensor is based on measuring the partial vacuum pressure in a tensiometer. A tensiometer is a closed tube with a special ceramic part in its end. The tensiometer is filled with water and put in the soil. If the soil is dry, water goes out by diffusion through the ceramic holes and partial vacuum pressure is created in the tensiometer. When we wet the soil, the partial vacuum in the tensiometer pulls water into the tensiometer and the vacuum decreases. This is why soil moisture is measured in pressure level.

Specifications:

Experiment Duration: 1 seconds to 31 days.

Logger sensor Guide

This sensor enables measurements of the salt content in a solution in three ranges: %, ppm and mg/L.

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

Specifications:

Experiment Duration: 1 seconds to 31 days.

Logger sensor Guide

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