DESCRIPTION:
The Extech SD800 is a multifunction indoor air quality datalogger designed for continuous monitoring of CO concentrations, relative humidity, and air temperature in environments such as schools, office buildings, greenhouses, and hospitals. It features a maintenance-free dual-wavelength NDIR CO sensor and a triple-LCD display that shows all three parameters simultaneously. Data is logged to a 2 GB SD memory card in Excel®-compatible format with date/time stamps for easy transfer and analysis on a PC. Users can choose from multiple sampling intervals (from 5 seconds to 600 seconds or automatic) and operate the unit from six AAA batteries or the supplied universal AC adapter. 

Key Features:

• Monitors carbon dioxide (CO), air temperature, and relative humidity simultaneously 

• Maintenance-free dual-wavelength NDIR CO sensor for reliable long-term performance 

• Triple LCD for concurrent CO, temperature, and humidity display 

• Selectable data logging intervals: 5, 10, 30, 60, 120, 300, 600 s or auto 

• Logs data with date/time stamps to SD card in Excel® format 

• Includes six AAA batteries, 2 GB SD memory card, universal AC adapter, and mounting bracket 

• Suitable for long-term IAQ monitoring in buildings, greenhouses, labs, and commercial spaces