Extech CO250 Air Quality Monitor for CO2, +60°C Max, 99.9%RH Max, Battery-Powered

The FLIR Portable Indoor Air Quality CO2 Meter measures Carbon Dioxide (C02) , Temperature, Humidity, Dew Point, and Wet Bulb and calculates statistical 8 hour and 15 minute time weighted averages. It calculates statistical weighted averages of TWA (8 hour time weighted average) and STEL (15 minute short term exposure limit). It has Data acquisition software and cable included to record and document CO2, Humidity and Temperature data.

User programmable audible alarm
Backlit triple LCD display
Built-in RS-232 interface for capturing readings on PC