20 ~ 100% RH scale on 4" dial. Uses a precise synthetic hair hygrometer with an accuracy of ±5%. Inner dial shows temperature using a bimetal thermometer, with an accuracy of ±2°F. N.I.S.T. traceable certificate of compliance available: 736920C

Measures electro magnetic emissions from electrical power lines and power transmission, computer, HVAC, audio/video, and other electrical appliances and equipment milli-Gauss: 0.1 to 2000 mG, 0.1 to 1 resolution micro-Tesla: 0.01 to 200 µT, 0.01 to 0.1 resolution Accuracy:…

The remote ambient temperature / relative humidity sensor is mounted on a cord over 7’ long. Place the highly accurate sensor inside a desiccator, refrigerator, drying or other environmental chamber and view simultaneous displays of temperature and RH outside on the large LCD. Recalls min/max…

Split interval function N.I.S.T. traceable certificate of compliance available.

Takes the guesswork out of heat stress calculations. This unique heat stress meter features bright multi-color LCD backlights corresponding to OSHA’s heat stress alert levels. This visual alert system can be seen at a distance allowing management and workers to be instantly aware when…

8:1 distance to spot ratio (D:S) Rugged and ergonomically designed Auto power off Simply hold the IR gun, press the trigger and aim the laser guide at the target. Results immediately appear in °C or °F on the backlit LCD and are automatically held for 6 seconds after the…

Large 3 3/16” x 2 1/2” dual display Recall min/max temperature and humidity readings Stand or wall mount Monitor can be used in labs, chemical storage areas, clean rooms, stock rooms, factories or outdoors. Unit can be used to monitor desiccators, incubators, refrigerators…

For calibration of all Sper Scientific digital sound meters and any sound meter with a ½" microphone. The 850012 Sound Level Calibrator is used to calibrate the sensitivity of the microphone and sound level measuring equipment. The design is based on the feedback method to ensure a highly stable…

Enables precise measurement of white and color LED illuminance, color temperature, correlated color temperature or color difference simultaneously shown on a backlit display. Excellent for art galleries and museums, film and TV studios, lighting manufacturers, stores and designers.  Meets…

Numeric keypad allows for fast programming Counts up or down for 99 minutes (810024R) or 100 hours (810026R) in intervals of 1 second N.I.S.T. traceable certificate of compliance available: 1225A21 and 1225A25

Fits standard test tubes 16x50mm or larger Highly stable and accurate readings with a large LCD display. Designed for simple one-hand operation. Automatically calibrates to pH 4, 7 and 10 buffers and can be adjusted to recognize any buffer. Features hold function, and auto power off with low…

Measures conductivity (in a wide range of 0.1 S ~ 199mS), salinity, TDS (total dissolved solids), and temperature. Determine water purity in boilers, coolers, water conditioning, waste water, photography, environmental testing, aquariums, labs, industrial and quality control. The large back-lit…

Advanced pH Meter Reads either pH (in 0.01 resolution) or mV in large digits, with time, date, and temperature (in ºC or ºF) shown simultaneously on the lower display. Also indicates stable reading, low battery and displays calibration data. Scroll 99 data points with time stamps and min/max…

Fast, stable and accurate response Light Meter Lux 840006 Monitor light levels anywhere with fast, stable and accurate response. Results are easily read on t he extra large digits ( 7/8" high, 2 2mm) t hat also indicates w hen t he battery is low or the reading over range. The color and…

The large display indoor/outdoor thermometer simultaneously displays internal and external temperature on a 33/16” x 21/2” LCD, large enough to be read across a room. Useful as an indoor/outdoor thermometer, or anywhere simultaneous internal and external readings are required. Can be…

¾ inch high digits Easily portable Warning alarms sound at 3 and 5 minutes prior Records elapsed time following the alarm N.I.S.T. traceable certificate of compliance available: 1225A46

1 year warranty CE Mark Highly stable and accurate readings with large LCD display. Designed for simple one-hand operation. Simultaneously displays the parameter being measured and temperature in ºC or ºF. Features automatic temperature compensation, 2 pt. calibration, auto power off, hold…

The Water Quality Meter reads PH, mV, conductivity, TDS, D.O. temperature and ORP using interchangeable probes. The user can order probes for only the parameters currently required and add additional probes in the future. Intelligent probes electronically retain calibration information. No…

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 thermocouple probes. Records data onto standard SD memory cards (like a digital camera). When…

Sper Scientific offers a wide selection of pH calibration and buffer solutions. Always choose a pH 7 buffer plus at least one other pH value close to your expected measurement range. Using solutions of known pH value allow you to adjust the system to read accurate measurements. Calibration should…

Compact and portable; can be used to monitor light levels anywhere or to check lux level of a specific light source Range: 0.1 to 400,000 lux, 40,000 fc Extra large LCD (1 1/2” high) with bar graph Quick, accurate responses Selenium cell photosensor is hermetically sealed…

Features a large bar graph display, A & C decibel frequency weighting scales, min/max, peak, fast or slow response, AC or DC output, auto-power-off, low battery indicator. Covers 30 to 130 dB in the A & C scales with a resolution of 0.1 dB and an accuracy of ±1.4 dB (ref 94 dB@1KHz). Comes ready to…

Resilient silicon rubber Enables filling and dispensing of pipets with one hand, safely through avoidance of hand or mouth contact with liquid. Our Silicone Pipet Fillers offer a softer feel with easier and faster operation of valves. Silicone is also more chemically resistant and more…

When temperature exceeds your minimum or maximum setting entire display flashes red. Simply hold the IR gun, press the trigger and aim the laser guide at the target. Results immediately appear in ºC or ºF on the backlit LCD and are automatically held for 6 seconds after the trigger…

This multi-functional pen type water quality meter measures conductivity and total dissolved solids to determine water quality. The unit has auto calibration and automatic shut off if idle for 2 minutes. This compact unit weighs just 27 grams, is 6” in length and easily fits into a shirt…

One thermometer bulb is kept constantly wet by a siphon reservoir while the other gives a dry temperature reading. Humidity is obtained by comparing the two readings on the enclosed chart. Uses a safe and easy to read red liquid in place of the usual mercury. Dual scales of -10/50°C and …

This Sper Scientific Stopwatch features a large display with 1/100 second resolution, split time display, clock/calendar mode and alarm functions. This Sper Scientific Stopwatch is shock and water resistant, and has a large 5/8" high display for good visibility. 1/100 second resolution stopwatch…

The Basic pH Meter has large 7/8" high digits and a lightweight design. Ideal for both field and lab applications. Simple to operate and works with any electrode with a BNC connector. Measures the full 0 – 14 pH range with a high 0.01 pH resolution. Features 2 point calibration, hold function,…

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

Covers a wide pressure range, 0 ~ 725 PSI, not usually found in a single meter. Compatible with both liquids and gases. Useful in measuring pneumatic pressure, automobile engine vacuum pressure, super heat measurements, hydraulic servo controls, refrigeration, air conditioning, and food processing.…