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 …

Click stop controls give the definitive feel of a mechanical stopwatch but with hundreds of times the accuracy. Large LCD for good visibility. Rugged ABS plastic case. Counts to 24 hours in 1/100th second resolution for the first 30 minutes. Split interval, clock, and calendar functions. Comes with…

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  

A bright flashing yellow LED visual alarm or an audible alarm Will flash or sound continuously for weeks until shut off Counts time elapsed after the alarm N.I.S.T. traceable certificate of compliance available: 1225A44

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…

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…

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…

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…

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

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

All filled with safe red alcohol, white backed, 125mm immersion.

Wirelessly display, log and download readings. Temperature / RH / Dew Point / Wet Bulb K, J, E, N, R, S or T Thermocouple probes Bluetooth® Hi / Lo Alarms Min / Max / Ave This portable Thermo-Hygrometer displays RH, ambient temperature /dew point / wet bulb and…

Automatically log up to 12,000 readings with date and time stamps and download them to your computer or manually record and review 99 readings on the meter’s display. Features a user friendly menu, backlit dot matrix display, auto power off and a tripod screw. This portable meter is ideal for…

Laser circle indicates the precise area measured. 9:1 D:S Measures up to 932ºF (500ºC) Simply press the button and aim the laser circle guide at the target to scan temperature, release to hold. Results immediately appear in ºC or ºF on the backlit LCD and are…

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 …

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…

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…

Although mini sized, light weight and inexpensive, these units provide extremely accurate and reliable temperature measurement with all the versatility and range of type K & J thermometers. Features relative, min/max/ave temperature, hold, and touch tone buttons. Results are displayed on a large…

All Sper Scientific immersion thermometers are made with safe red liquid to SAMA specifications for ranges and accuracy. In addition, our thermometers have a number of extra quality features built in: Red Liquid Expansion Chambers Reinforced Bulbs to prevent breakage Horizontally…

12:1 distance to spot ratio (D:S) Measures up to 999°F (535°C) in 0.1° resolution 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…

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. …

67 functions 12 or 10 digit LCD with 2 digit exponent Auto power off Handy storage memory for storage of conversions Capable of 15 levels of parenthesis Highly efficient solar panel that requires only 50 lux Functions include binary, octal decimal, sexaqesimal and hexadecimal…

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 wall mounted or freestanding with easel back. Recall…

The Sper 850048 Combination Water Meter can Measure Dissolved Oxygen, pH, Conductivity, TDS, Salinity or Temperature Using Different Probes. This kit includes includes one conductivity/salinity probe. Additional probes (optional) also allow it to operate as a highly accurate pH meter, conductivity…

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…

Stopwatch/Timer with 100 Count Memory for Sports and Other Applications. This Sper Scientific Stopwatch stores 100 split and lap times, will count up or down to 20 hours in 1/100 second resolution and offers many advanced features. The large 3 line display simultaneously shows total elapsed time,…

Highly accurate thermometer (+/-0.3% rdg. +1 C) accepts any type K or J thermocouple probes. Fast response time over a wide temperature range (-200~1370ºC and -28~2498ºF) and high resolution (0.1 C/F). Advanced features include a large 3 /12 digit LCD, hold, auto power off, min/max/avg, and…