The TMP-1 offers precision temperature-based control of cooling and heating equipment. This controller is easy to use and versatile too, as it can be utilized with exhaust fans, A/C units & heaters. Change from heating to cooling with just a flip of the switch. The simplicity of this thermostat and its small design make it a useful addition to any grow room. Includes 3′ remote sensor with a control range of 50°F–115°F. 15 Amps maximum @ 120VAC.