"Sper Scientific"

Battery operation makes the unit completely portable.

All filled with safe red alcohol, white-backed, total immersion, 6" (153 mm) long, in blue plastic holder.

Easily measure humidity

Ideal for Student Testing at School

Collect Temperature Values with the Press of a Button.

Easy to carry, simple to operate and sufficient for most field pH tests.

Accurate IR at a reasonable price.

Measures AQI, dust, particulates, volatile organic compounds, and overall air quality.

Compact Ultrasonic Cleaner for Jewelry, Eyeglasses, Instruments and More.

Compact visual and audible alarm timer.

Measures electromagnetic field emissions from electrical power lines and transmission equipment, computer, HVAC, audio/video, and other electrical appliances and equipment.

For environmental testing anywhere

Long Battery Life

Obtain fast and accurate humidity readings anywhere by comparing the reading of the wet and dry bulb thermometers on the enclosed humidity chart. Eliminates the hazard of splattering mercury by using a safe and easy to read red liquid. The thermometers are recessed into a protective plastic mounting. The mounting also contains a water reservoir eliminating the need to constantly rewet the wick.

The salt refractometer reduces the amount of samples needed.

Simultaneously displays the parameter being measured and temperature in °C or °F.