Etokfoks Digital Air Quality Monitor 5 in. 1 Multi-Functional CO2 Detector MLSA01-1LT052 - The Home Depot

5-in-1 Professional Indoor Air Quality Monitor Indoor Portable CO2 Monitor, Temperature, Formaldehyde Detector, Humidity TVOC

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.

Triplett GSM400 Portable Indoor Air Quality CO2 Meter

Airthings View Air Quality Battery-Operated Indoor Air Quality Monitor with Wi-Fi, for PM2.5, Humidity and Temperature 2980 - The Home Depot

5-in-1 Professional Indoor Air Quality Monitor Indoor Portable CO2 Monitor, Temperature, Formaldehyde Detector, Humidity TVOC

TRIPLETT Portable Indoor Air Quality CO2 Meter GSM400 - The Home Depot

Etokfoks Digital Air Quality Monitor 5 in. 1 Multi-Functional CO2 Detector MLSA01-1LT052 - The Home Depot

Features: *5 in 1 professional air quality meter has an advanced sensor and a detection algorithm to accurately measure the data of HCHO, CO2, TVOC,

5 In1 Indoor Air Quality Monitor CO2 HCHO TVOC AQI Meter Detector Tester

UEi Combustible Gas Leak Detector CD100A is engineered for both residential and commercial applications. The semiconductor sensor responds to all combustible gases, and provides accurate, consistent detection. A flexible 18 in. wand allows you to pinpoint the location of the combustible gas leak, and to check if the work you have completed was successful. Adjustable tic rate increases as the sensor wand nears the leak.

Uei CD100A - Combustible Gas Leak Detector

Airthings Wave Mini Battery Operated Smart Indoor Air Quality Monitor with Mold-Risk Indication 2928 - The Home Depot