The Resideo T827K1009 VERT HT STAT, HEAT/OFF,Mv/DC is a wall mountable temperature sensor that can be used to monitor room temperature and/or the temperature of a heating or cooling unit. The sensor has an 8-bit resolution and can be read using a standard microcontroller. The sensor has an on-board temperature sensor and an off-board temperature sensor, which can be used to create a temperature differential. The sensor can be mounted on a wall using the included mounting bracket or can be placed in a cabinet or other location.