This new HGA-DY-PB model has a long life Infra-Red wavelength sensor and available in 3 ranges:

HGA-DY-PB-05   0-5000ppm CO2

HGA-DY-PB-10   0-10% CO2

HGA-DY-PB-100 0-100% CO2

Features

Built-in electric sampling pump

Rechargeable Lithium battery, gives over 4 hours of  continuous operation

Supplied with charging cable – USB with 230VAC adapter