OAT Outdoor Air Sensor
The OAT sensor can be mounted on the outside of the building using the following guidelines: Choose a spot on the north face out of direct sun light as much as possible. Mount the sensor where it can be serviced, staying away from exhaust ducts. Point the probe downwards to avoid catching rain. To install the sensor, drill a 3/4” (20mm) hole through the wall, and pipe the sensor to an electrical junction box on the inside of the wall. Two conductors are required, 18ga, unshielded twisted pair is common.