Sper Scientific

Displays current RH & temperature readings, and automatically logs Air Temperature, RH, Dew Point, and Wet Bulb. Records up to 32,000 data points that can be downloaded by plugging the pen directly...

Coiled probe extends to 4 ft. This unique sound meter enables remote sound level readings using a detachable probe. Features both RS232 computer interface and AC output. Also has A and C decibel...

Dial Barometer for classroom, lab, and industrial use. Large, clear dual-scale barometer in hPa (hecto Pascal) and mm (millimeter mercury) on a 4 in. dial which is easy to read from a distance...

The dial hygrometer / thermometer is ideal for classroom, lab, or industrial use. Large, clear, 20 to 100% RH scale on 4 in. dial. Easily read from a distance. Uses a precise synthetic hair...

Digital Hourglass offers the simplicity of an hourglass by starting the count down as soon as it is turned over. Unlike a sand hourglass, however, the duration of the count down is adjustable to any...

Perfect for testing for OSHA requirements. Meets IEC 61672 class 2 and ANSI S1.4 type 2 frequency and time weighting specifications. Offers a wide variety of measuring options including A and C...

One 30 mL bottle of Dissolved Oxygen Electrolyte. 6 month warranty.For use with the following: • Dissolved Oxygen Pen (Cat. No. 660-10109)• Dissolved Oxygen Probe (Cat. No...

Measures dissolved oxygen to determine water quality in environmental testing, labs, industrial and municipal waste water, aquariums and fish hatcheries. Designed for simple one-hand operation with...

Digital timer and stopwatch counts up or down for 10 hours in intervals of 1 second. In count down mode unique feature tells you how much time has elapsed after the alarm sounds. Memory allows repeat...

Electro-luminescent water-resistant digital stopwatch. Electro-luminescence is a new technology which provides a clearer display than back-lit LCD while at the same time using less power. The result...

Combines an anemometer, hygrometer, thermometer, sound and light meter into a single hand-held unit. Also reads any type-K thermocouple probe. Results are displayed on a large dual LCD with low...

Records air speed, air temperature, relative humidity, light and thermocouple temperature onto removable SD Cards. Features a 4-parameter environmental probe and also accepts standard type K or J...