• Simultaneously displays CO2, temperature, and relative humidity
• NDIR (Non-Dispersive Infrared) waveguide technology sensor
• Desktop EBTN display with light bar
• 3-color light bar (green/yellow/red) changes color with CO2 concentration
• Carbon Dioxide (CO2) range: 0 to 5000ppm, accuracy: ±75ppm ±5% of reading

The Triplett GSM215 is a desktop indoor air quality CO2 meter that ensures optimal air quality in homes, offices, schools, malls, fitness centers, and other public areas. The GSM215 provides simultaneous readings of CO2, temperature, and relative humidity, thanks to its advanced NDIR sensor. Its dual-mode design allows for both desktop and wall-mount use, while the EBTN display enhances visibility. A dynamic 3-color light bar (green/yellow/red) changes color with changing CO2 concentration.

The device is powered by a built-in rechargeable battery that can be conveniently recharged from a USB source (PC, power bank, wall adapter, etc.). A USB charging cable is included. The low battery indicator ensures uninterrupted use. 

• Green - less than 800ppm
• Yellow - from 800 to 1500ppm
• Red - greater than 1500ppm