Center 512 Carbon Dioxide Meter with Datalogging
Suitable for checking and monitoring IAQ (Indoor Air Quality) in offices, schools and homes. Its range is 0-30000 ppm. This is a portable handheld instrument with datalogging inbuilt. Uses accurate dual wavelength NDIR sensor technology. Also measures temperature and relative humidity. A large 32,000 reading memory and connects via USB cable utilizing free software. Auto power off timer, alarm buzzer and backlight. More information including price is found here.