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…

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

The Water Quality Bench Top Meter from Sper Scientific measure all of the following parameters: pH ORP (oxygen reduction potential - SOLD SEPARATELY) mV Conductivity TDS (total dissolved solids) Salinity Temperature Rugged housing with large LCD displaying the…

Measure damaging UV (ultraviolet) light in the environment and museums UV degradation studies in the pharmaceutical, cosmetic, semiconductor, printing, window tinting, and other industries Laboratory chromatography, electrophoresis and forensics Test UV sterilization and dermatology lamps…

Automatically log up to 4,000 readings or manually record 99 readings, each with pH, mV (supports ORP), °C or °F, time and date Review all data on the meter’s display or download with the included software Three point calibration with automatic buffer recognition indicating the number…

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 …

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

Response time of 1 second Range: -27 to 428°F, -33 to 220°C Resolution: 0.5°F, 0.2°C Accuracy: 2.5% or 2.5°C, whichever is greater On one end the pen features a super bright white LED. A standard AAA battery provides 6 hours of continuous illumination. The other…

This unique instrument combines the features of an anemometer and a psychrometer. Air Speed Air Volume BTU (British Thermal Units) Air Temperature Dew Point Wet Bulb Humidity Also calculates air volume and BTU capacity. Excellent for HVAC, IAQ and environmental work.…

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…

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

Wirelessly Display, Log and Download  Bluetooth® Hi / Lo Alarms Ice Point calibration Δ (T1-T2) Min / Max / Ave K, J, E, or T This unique portable thermometer displays data from 4 K, J, E, or T type thermocouple probes simultaneously on a large…

Rugged housing with large LCD displaying the parameter being measured together with time, date and temperature (in ºC or ºF). Automatic or manual temperature compensation Automatic or manual ranging Automatic buffer recognition Digital and analog outputs Min/Max and 99 data points …

Records data onto removable SD Cards ROHS Compliant CE Mark 1-year warranty Reads air velocity and temperature and functions as a type K or J thermometer. Records data onto standard SD memory cards (like a digital camera). When full, simply exchange SD cards for unlimited data storage. The…

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

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…

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. …

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

This clamp meter offers all the features you need to fit the way you work. The small bodies and jaws fit perfectly in your hand and into tight places. Meter controls are positioned so that current measurements can be done with one hand. A large backlit display is easy to see, and the handy display…

Measure concentrations in brix, salinity and a wide variety of other parameters in the field with laboratory accuracy. As small, light and simple to use as optical refractometers, but with the precision of a digital readout. Reads samples as small as 1 ml. Sample temperature is initially displayed…

Select a bright flashing yellow LED or an audible alarm Counts time elapsed after the alarm N.I.S.T. traceable certificate of compliance available: 1225A36, 1225A38 and 1225A40

Red Liquid Whirling Hygrometer (-50~50°C) 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…

Measures concentrations in Brix, salinity, refractive index and clinical parameters Full scale accuracy of ±0.2% using CCD scanner (= linear scanned array imaging) technology Reads samples as small as 0.4 ml Measurement results, unit of measure and sample temperature are all displayed on the…

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…

All Sper Scientific immersion thermometers are made with safe red liquid to SAMA specifications for ranges and accuracy. Length 76 mm. • Red Liquid Expansion Chambers • Reinforced Bulbs to prevent breakage • Horizontally Printed Scales are easier to read in use • Ring Tops for submersion • Non…

Memory stores last 60 lap times Fastest, slowest, and average lap times Timer mode Water and shock resistant N.I.S.T. traceable certificate of compliance available: 0835A15

Enables remote sound level readings Features both RS232 computer interface and AC output. Also has A and C decibel frequency weighting scales, fast or slow time weighting, hold, peak hold, and min-max functions. Meets IEC 61672 class 2 and ANSI S1.4 type 2 frequency and time weighting …

Easily read from across a room Simultaneously displays either one count up channel and a clock, or two count down channels Extra large start/stop button and a loud alarm Wall mount

Monitor indoor air quality in public spaces with potentially high levels of CO₂ (carbon dioxide) CO,sub Humidity Dew Point Air Temperature Wet Bulb Temperature Poor air quality may cause tiredness, inability to concentrate, and even illness (i.e., Sick Building…

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

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…