Extech CO250 Portable Indoor Air Quality CO2 Meter, Software, Cable, 4 AA batteries, Carrying Case

The Triplett Model GSM200 Desktop Indoor Air Quality CO2 Monitor simultaneously displays CO2, Temperature, Relative Humidity, Time and Date and can be used to measure air quality in office buildings, schools, exhibition halls, shopping malls, meeting rooms, fitness centers, restaurants and other public places. It has 3 status indicators (Good/Normal/Poor) that change with CO2 concentration and user programmable audible/visual CO2 alarms (Good (default 800ppm), Poor (default 1200ppm)) with disable to alert you when safe CO2 levels have been exceeded. The sensor incorporates NDIR ...

Extech CO10 Carbon Monoxide (CO) Meter, Carbon Monoxide, 32°F Min. Operating Temp. Checking co levels is as easy as pushing just one button on the model C010, which measures up to 1,000ppm. An audible indicator increases in tone starting at 35ppm. The higher the concentration of co, the faster the alarm will sound. Above 200ppm, the alarm will sound continuously. A backlight on the display can be used for low light areas. Features: Max hold, data hold and auto-power-off The meter comes complete with a 9v battery, protective holster and case

Extech 407910-NIST Heavy Duty Differential Pressure Manometer, Digital, 12 oz. NIST Certified Differential pressure manometer measures to 29psi and displays results in 8 units of measure. Includes 2 quick-disconnect fittings, 9v battery, protective holster with stand, case and NIST Certificate. Features: Zero function for offset measurements Min/max Data hold Auto power off Built-in RS232 interface with optional data acquisition software or datalogger

The Triplett GSM250 Desktop Indoor Air Quality CO2 Meter can be used to monitor air quality in office buildings, schools, exhibition halls, shopping malls, meeting rooms, fitness centers, restaurants and other public places. It simultaneously displays CO2, Temperature and Relative Humidity. It can be used on the desktop or wall mounted and has a display with a light bar for easy reading from long distances. A 3-color light bar (green / yellow / red) changes color with CO2 concentration. It has touch panel programming and a user-adjustable CO2 level alarm with disable. NDIR (non-dispersive ...

This RF EMF strength meter monitors high frequency radiation in the 50 MHz to 3.5 GHz range. Ideal for mobile phones, cell phones, base stations, locating RF hot spots, wireless network (Wi-Fi) RF detection, RF electro smog detection and microwave leakage. The meter comes complete with a 9v battery and carrying case. Features: Non-directional measurement with 3-channel (Tripak) measurement probe Max hold and average functions and manual store/recall of up to 99 data sets Audible alarm with a user-selectable threshold