DOL 139 (140283) 3 in 1 Temperature & Humidity & CO2 Sensor Pressure Gauges M5 comes with a heavier

M5 comes with a heavier duty air filter for the extra dust that partridges can produce

Extensions are available - See 2 Track Extension

DOL 139 will replace your three other climate sensors and limit the need for maintenance

Controls Red Mite through it's powerful cleaning action

The ventilation isn’t created through holes in the side walls

DOL 139 (140283) 3 in 1 Temperature & Humidity & CO2 Sensor Pressure Gauges M5 comes with a heavierA 3 in 1 high precision sensor for monitoring & controlling relative humidity, Carbon Dioxide and temperature in livestock houses, and other industrial applications This 3 in1 sensor is protected by a sturdy filtered casing and supplied with protective cable and a cap for use during washing and disinfecting. DOL 139 will replace your three other climate sensors and limit the need for maintenance. Its incredible accuracy allows measuring even 10000 ppm