Intermatic FF15MH 15-Minute Spring Loaded Wall Timer, Brushed Metal This spring-loaded mechanical countdown timer switch requires no electricity to operate Switch plate with brushed-metal appearance meets NEC requirements (plate is included), and replaces any standard or decorator single or multi-gang wall switch This in-wall countdown timer automatically limits the "ON" time of fans, lights, motors, heaters and other energy consuming loads to a maximum of 15 minutes Time saving "up front" terminal connection with teeter type terminals Easy "press-on" knob design ensures quick and easy installation