868MHz Pushbutton Multi Channel Radio Transmitter Module - 

The PTM 210 is a push button multi channel switch module. This miniaturized batteryless switch module which allows the realization of very slim on wall mountable rocker switches or remote controls. The actuating force is around 7N only over a travel of 1.8mm. Optionally, one or two switch rockers or up to four push buttons can be realized. The radio transmitter module PTM 210 enables the implementation of wireless remote controls without batteries. Power is provided by a built in electro dynamic power generator. The PTM 210 pushbutton transmitter is self powered (no batteries) and therefore maintenance free. They can be used in hermetically sealed systems or in remote (not easily accessible) locations.