"Sper Scientific"

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

Ideal for Student Testing at School

Collect Temperature Values with the Press of a Button.

Battery operation makes the unit completely portable.

Easily measure humidity

Accurate IR at a reasonable price.

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

Reads either pH (in 0.01 resolution) or mV in large digits, with time, date, and temperature (in °C or °F) shown simultaneously on the lower display.

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

HACCP Compliant surface and internal temperature.

For environmental testing anywhere

The salt refractometer reduces the amount of samples needed.

Highly stable and accurate readings with large LCD display. Designed for simple one-hand operation.

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

Compact visual and audible alarm timer.

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.