Highly stable and accurate readings with large LCD display Designed for simple one-hand operation Automatically calibrates to pH 4, 7, 10 buffers and can be adjusted to recognize non-standard buffers as well Features hold function and auto power  

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…

These meters are light weight, tiny in size with simple, one-hand, operation. They are perfect for scientists, agricultural specialist, facilities managers, HVAC professionals, home inspectors, field technicians, health and safety personal, hazmat crews, outdoor enthusiasts, educators, and coaches…

Measure the RF strength of Wi-Fi and LAN, cell phone, radio and TV transmission towers, wireless cameras and microphones. Sper Scientific's 3-Axis RF Meter 840047 measures RF (Radio Frequency) electromagnetic field strength in the frequency range of 50 MHz to 3.5 GHz. The 3-Axis probe provides…

Displays current RH & temperature readings, and automatically logs: Air Temperature, RH, Dew Point, Wet Bulb Records up to 32,000 data points that can be downloaded by plugging the pen directly into a USB port, with no cradle or cable necessary. Datalogging can be programed to begin…

Combination Dosimeter, Datalogger and Sound Level Meter. This compact sound dosimeter from Lutron is designed for personal sound/noise exposure recording and datalogging. This meter meets IEC61252 and ANSI S11.25 standards for noise dose and sound exposure and IEC61672 Class 2 and ANSI S1.4 Type S…

Used in motion studies in classrooms, physics and Q.C. labs. Convenient for non-contact measurement of running machinery in factories and elsewhere since, unlike tachometers, stroboscopes require no special reflective tapes. Powerful xenon lamp. The ½” high 4 digit LED is easy to read in both light…

Standalone light meter that can also wirelessly display, log and transfer readings to your iOS or Android smartphone. Sper Scientific’s Bluetooth Light Meter is small, light, and simple to use with results displayed on the meter’s large, bright backlit display. Choose readings in lux or…

5 year warranty CE Mark A single dynamic 30 ~ 130db range eliminates the need to manually select ranges and prevents data errors during range changes in auto-ranging models. All test parameters are simultaneously displayed on a large bright backlit display featuring 0.1 dB resolution and a bar…

This handheld device reads air velocity and temperature, and also functions as a type K or J thermometer that records data onto removable SD Cards. Records data to standard SD memory cards (like a digital camera). When full, simply exchange SD cards for unlimited data storage. The removable SD card…

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

Sper Scientific’s LED Light Meter compensates for the wide variety of color temperatures available in modern LED lighting. Unlike standard LED Light meters which are calibrated only to a particular color temperature bulb, Sper Scientific’s LED Light Meter compensates for the wide variety of color…

Cover the entire 0 ~ 88% brix range with one instrument along with ND (refractive index), temperature and dextran, fructose, glucose, lactose, and maltose scales. Housed in a protective rubberized IP65 waterproof case to safeguard the electronics from wet environments and makes for easy clean ups.…

4 CHANNEL THERMOMETER This unique portable thermometer displays data from 4 thermocouple probes simultaneously on a large backlit LCD. Communicates with a computer via the bi-directional RS232 port and optional cable, and graphic software. Auto ranging with auto power off, minmax, hold…

A and C decibel frequency scales Fast or slow response Calibration Certification available Easy calibration using internal oscillation system AC or DC output and peak function Display has a resolution of 0.1 dB and indicates low battery and over/under load. Has a foldout tripod stand and…

Large Display Indicates time elapsed after count down reaches zero Has a stand, pocket clip, and a magnet N.I.S.T. traceable certificate of compliance available: 1225A17

Eliminate the need to continually visually check time remaining Audible count-down can be heard throughout the lab Useful for work in low light N.I.S.T. traceable certificate of compliance available: 1225A34

The Digital Min Max Thermometer is a versatile device designed to measure and record indoor and outdoor temperature fluctuations. Its Min Max feature allows you to display and record the minimum and maximum temperature values, allowing you to track extreme temperatures over a period of time. …

Our Multifunction Moisture Meter measures moisture content in wood and other building materials such as sheetrock, drywall, wallboard, concrete, mortar, plaster. It can also measure humidity, air temperature and dew point using the built-in probe. The unit allows for moisture measurement using 3…

Reliable DO readings at a reasonable price. Measures dissolved oxygen to determine water quality in environmental testing, labs, industrial and municipal waste water, aquariums and fish hatcheries. The back-lit display simultaneously displays dissolved oxygen (in % or mg/L) and temperature readings…

Simply approach the source at any angle and the triple-axis meter automatically determines EMF (electro magnetic frequencies), eliminating the need for additional calculations. X, Y, and Z axis results can also be viewed independently. Measures electro magnetic fields of extremely low frequency…

Torricelli (1608 – 1647) proved that air pressure was subject to variations and in 1643 he devised the first barometer. Goethe, the famous German playwright, who enjoyed scientific experiments, later developed his own simple, but effective barometer using the principles established by Torricelli. …

For ORP (Oxygen Reduction Potential) measurement in water treatment, disinfection and labs. Highly stable and accurate readings with a large LCD display. Designed for simple one-hand operation. Features auto power off, hold function, and a low battery indicator. The case is IP65 waterproof, and…

Records sound together with dB levels. This unique Sound Meter enables you to playback a live audio recording that is synced with the measured sound intensity graph. The meter and included software can quickly collect and analyze all standard sound data such as dB levels, LEQ and SPL, but also…

Easily carried in a shirt pocket These tiny meters are less than ¾" thick and weigh only 4oz (120g). The controls, display and sensor are all neatly contained and protected within the folding case. Directions are printed right inside the cover. When open, the sensor may be extended for…

4 channels can be set independently but started simultaneously Loud alarm N.I.S.T. traceable certificate of compliance available: 1225A27

Ideal for monitoring temperature in food processing, boilers and grain. Comes with a clamp for suspending the extra-long 19" (0.5M) probe in vats, tanks, and other large containers. 1-& 12;" high digits can clearly be seen from a distance. Degrees C & F switchable display and fully waterproof…

Ideal for monitoring indoor air quality in homes, offices classrooms, hotels or anywhere air quality is important., and is especially helpful in preventing the spread of Covid-19. Provides audible alarms for CO2 threshold. Maintenance free NDIR (non-dispersive infrared) sensor using waveguide CO2…