Extech Instruments

The RPM33 provides both contact (2 to 19,999 rpm) and non-contact (2 to 99,999 rpm) RPM measurements for enhanced versatility. Laser guided non-con...

The RPM10 is a combination tachometer which provides both contact and non-contact RPM measurements, making this device useful in virtually all appl...

Conveniently check the Humidity and Temperature conditions in residential and professional settings to ensure comfort and safety. The RHT510 is a H...

The RHT50 records Relative Humidity (0 to 100%RH), Temperature (-40 to 158°F /-40 to 70°C) and Atmospheric Pressure (13.7 to 15psi / 950 to 1050hPa...

RHT35 uses a standard USB connection to transfer up to 48,000 readings to a PC with data/time stamp in PDF or spreadsheet format. Additional featur...

The RHT3 is an EzSmart Hygro-Thermometer for use with Android or iOS Smart Devices. The RHT3 comes with a free app from iTunes and Google Play for ...

The RHT20 is a Humidity Temperature Datalogger which records up to 16,000 Humidity and 16,000 Temperature readings with a user programmable sample ...

The RHT10 datalogs Humidity and Temperature readings (up to 16,000 each) with user programmable sample rates from 2 seconds up to 24 hours for days...

The RHM15 is a mini hygro-thermometer monitor which measures humidity and temperature and displays it simultaneously. The RHM15 has a built in memo...

Anyone whose job relies on calculating humidity levels will appreciate the Extech Hygro-Psychrometer. In addition to measuring relative humidity in...

Measure humidity and temperature simultaneously with the RH390 Precision Psychrometer from Extech. A dual-illuminated readout can be alternated to ...

The RH300-CAL is a kit which contains 33% and 75% humidity calibration bottles. Used for verifying calibration of the 445815 humidity meter. Bottle...

The RH300 is a compact meter that is ideal for field applications. Simultaneously displays relative humidity (10 to 90 percent RH), air temperature...

Extech’s pocket-sized Heat Index Psychrometer Pen easily monitors Heat Index during hot humid days to prevent heat stroke during outdoor activities...

This Combination Humidity meter plus Infrared Thermometer features a large backlit LCD with Primary and Secondary displays. Primary display is user...

Refractometer measures the Propylene/Ethylene Glycol freezing point from -50 to 0°C and the Specific Gravity of battery acid from 1.11 to 1.30 and ...

This portable battery coolant/glycol Refractometer is easy to operate refract meters provide accurate and repeatable measurements on easy to read s...

Measures the concentration of dissolved salt in fluids. Compact size, easy to operate. Automatic Temperature Compensation (ATC) from 10 to 30°C. Co...

The Extech RF15 measures the concentration of sugar in fruit juice and industrial fluids from 0 to 32 percent Brix, with a maximum resolution of 0....

Refractometer measures the concentration of lubricants and cutting fluids. Compact and easy to operate. Requires only 2 or 3 drops of solution and ...

Refractometer measures the concentration of industrial fluids and sugar in fruit juice. Compact and easy to operate. Requires only 2 or 3 drops of ...

The Extech RE305 ORP ExStik® Electrode Module is an easy to clean, rugged flat surface ORP electrode that is interchangeable with ExStik® Chlorine ...

Measures ORP/Redox from -999 to 999mV Automatic electronic self calibration Simulated analog bargraph displays change in ORP reading High resolut...

The PT30 is a Pressure Transducer for 30 PSI measurements with Extech Models SDL700 Pressure Meter/Datalogger and 407495 Heavy Duty Pressure Meter ...