Family Owned & Operated Since 1971• Bakersfield, CA
Indoor air quality meters, anemometers, humidity instruments, and refrigeration tools
239 products
2-Gas NOVO Economical Kit: Long-Life O2, CO, CO2, No Printer, CO-Dilution, Combustion Efficiency, Excess Air, Draft, Pressure, Temperature, 7" Probe with 6' Hose, No Carrying Case, Mobile Apps (iOS and Android), No Pro Mode, No Heat Exchanger Test
Cool Guardian R134a: Refrigerant Gas Detector with Semiconductor Sensor for R134a; Measuring Scale 0-1,000 PPM
Lightmeter Datalogger Model 1110
Ultrasonic Leak Detector
The AN300 is a Large Vane CFM/CMM Thermo-Anemometer. This meter measures Air Velocity, Air Flow and Temperature. Extech’s Large Vane Thermo-Anemometer series allows for more precise readings on larger size ducts. Each meter simultaneously displays Airflow or Air Velocity and Temperature. Complete with 4 AAA batteries and hard carrying case.
Gas Master Control Unit: 180x128 graphic LCD display, 8 LED indicators and signaling buzzer, 9-button keypad. Power supply: 85-254 Vac 50/60 Hz or 12 Vdc. Inputs: 8 x 4-20 mA, 1 external Fire Alarm input, 1 external Manual Reset input. Modbus interface for up to 32 gas concentration transmitters. Outputs: 5 x 5A 250 Vac SPDT relays.
Portable indoor-air-quality meter with a low-drift NDIR sensor — simultaneously displays CO2 (to 9999 ppm), temperature, and relative humidity, with TWA/STEL air-quality analysis and an audible alarm.
Light Meter Manual Ranging
RTD Thermometer
Sound Meter
Pocket probe-style meter with a precision capacitive RH sensor under a twistable protective cap — dual display of relative humidity and temperature, plus wet-bulb and dew-point, with min/max and data hold.
Dig Sling Psychrometer w/Dew & Wet Bulb Read
Dual Channel Thermometer, Type K, J
The 407123 Heavy Duty Hot Wire Thermo-Anemometer uses a telescoping probe (extends up to 2 ft) which is ideal for use in ducts and ventilating systems. It can accurately measure Air Velocity and Temperature and simultaneously displays them on the dual LCD. Additional functions include Data Hold and Min/Max measuring modes. Comes complete with telescoping probe with 5.5ft cable, and 6 x AA batteries.
The 407910 is a Differential Pressure Manometer that measures to 29psi and displays results in 8 units of measure. Features include: zero function for offset measurements, Min/Max, Data Hold and Auto power off. Includes 2 quick-disconnect fittings, 9V battery, protective holster with stand, and case.
Take this this handy humidity and temperature gauge on the go and rely on a long-lasting 3V lithium battery for maximum usage time. The slim Extech 445580 humidity/temperature pen will capture humidity readings from 10 to 90% RH and register temperatures from -10°C to 50°C (14°F to 122°F). This utility tool is ideal for field work, storing maximum and minimum readings until the memory is cleared and includes a data-hold button for rapidly fluctuating measurements. The meter comes complete with a pocket clip and 3V lithium battery.
This Extech Big Digit Hygro-Thermometer has an extendable probe with a 45.7 cm (18 in) cable. It measures humidity from 10% RH to 99% RH ± 4% RH and temperature from -10°C to 60°C ± 1°C (14°F to 140°F ± 1.8°F). This meter also includes maximum/minimum and rest functions, as well as having a rear calibration adjustment post with optional RH calibration bottles. Comes complete with built-in stand, mounting bracket, sensor, and 1 AAA battery.
This Humidity Meter with Alarm and Remote Probe features a large triple display of relative humidity, temperature and dew point. Has a built-in stand for sitting on a desk but can also be mounted to a wall with included bracket. A visual and audible alarm warns when the humidity level goes above or below the adjustable set point. Meter also stores the maximum and minimum readings. Remote probe extends 18 in. for measuring behind walls. Ideal for use in humid areas where mold can become a problem. Comes complete with built-in stand, wall mount bracket, and 2 AAA batteries.
The AN100 CFM/CMM Thermo-Anemometer can simultaneously display Air Flow or Air Velocity plus Ambient Temperature. Easy to set area dimensions (ft² or m²) are stored in the meter's internal memory for the next power on. Additional features include: 20 point average for Air Flow and 3% velocity accuracy via low friction 2.83 in. D (72mm) ball bearing vane wheel on 3.9ft (120cm) cable. Comes complete with 9V battery, protective rubber holster and case.
AN200 is a CFM/CMM Mini Thermo-Anemometer with built-in InfraRed Thermometer. Built-in non-contact IR Thermometer measures remote surface temperatures to 500°F (260°C) with 8:1 distance to spot ratio and Laser Pointer. This CFM/CMM Thermo-Anemometer can simultaneously display of Air Flow or Air Velocity plus Ambient Temperature. Easy to set area dimensions (ft² or m²) are stored in the meter’s internal memory for the next power on. Additional features include: 20 point average for Air Flow and 3% velocity accuracy via low friction 2.83 in.D (72mm) ball bearing vane wheel on 3.9ft (120cm) cable. Comes complete with 9-Volt battery, protective rubber holster, and case.
The AN310 is a Large Vane CFM/CMM Anemometer/Psychrometer. This meter measures Air Velocity, Air Flow, Relative Humidity, Wet Bulb and Dew Point. Extech’s Large Vane Thermo-Anemometer series allows for more precise readings on larger size ducts. With Min/Max, Data Hold, and Auto power off functions. Complete with 4 AAA batteries and hard carrying case.
The HD450 Light Meter measures from 0 to 40,000Fc and 0 to 400kLux with a 0.01Fc/0.1Lux resolution. Features: 5% accuracy, Peak mode (10µs), Relative mode, Min/Max, Data Hold, backlit LCD display with 40-segment bar graph, and a rugged double molded housing. In addition, the datalogger function can automatically store up to 16,000 readings or manually store/recall up to 99 readings. Comes complete with light sensor with 3ft (1m) cable and protective cover, software with USB cable, hard carrying case and 9V battery.
The HD500 Psychrometer with Infrared Thermometer combines 3 in 1 with humidity meter, type K thermometer and infrared thermometer functions. The HD500 features a large triple LCD backlit display, built in USB port, minimum/maximum, data hold and auto power off functions. Built-in InfraRed Thermometer for non-contact temperature measurement to 932°F (500°C). Includes a 3 year warranty, Windows compatible software with USB cable, Type K bead wire probe, carrying case and 9-volt battery.
The Extech MO290 combines a pin/pinless moisture meter with a built-in infrared thermometer, allowing you to measure temperature, humidity, dew point, vapor pressure, and much more. Comes complete with pin moisture probe, 9-Volt battery, and case.