CO2 / Temperature & Humidity Meter with SD Card Datalogger
The Lutron CO2-9904SD, is a versatile temperature and humidity meter that is capable of measuring CO2 levels. It has a wide CO2 measurement range of 0 to 6,000 ppm, and a temperature measurement range of 0 to 50 °C.
It accurately detects humidity levels between 10 to 95% RH, and provides dew point and wet bulb temperature measurements.
The device incorporates a reliable NDIR sensor for CO2 detection and a precision capacitance sensor for humidity measurements. The alarm function alerts users with a beeping sound.
The CO2-9904SD has a built-in SD card data logger with a sampling time that is adjustable from 2 seconds to 8 hours. There is no need for special software as data can be directly downloaded from the SD card to a laptop or PC and viewed in a spreadsheet application.
The meter comes complete with a CO2/temperature probe, humidity/temperature probe, and 16GB SD card.

Images are for reference only, refer to product data sheet