Power Efficient Radio Remote Transmitters can be operated on a temperature of -40° C to 85° C and works with 10 single step push buttons. The Radio Remote Transmitters come with battery voltage warning device and the power is cut off during low voltage conditions. The Radio Remote Transmitters consumes less power and can control from a distance of upto 100 meters. Power Efficient Radio Remote Transmitters is equipped with safety key features to prevent from unauthorised user.