The Origa T151 is an easy to use Frequency Hopping Spread Spectrum (FHSS) weatherproof transmitter. Various models include 4 to 7 toggle switches,a belt clip backing with optional potentiometer control and magnetic base. Each T151 transmitter uses a unique ID code to ensure that no frequency hopping systems will conflict on a job site. Powered by 4 AA Alkaline batteries, this unit is rated to 160 hrs of continuous use. Typical applications include Truck Mounted Cranes, Tow Trucks, Winches, Vacuum Trucks, Service Cranes, Mixer Trucks, Material Handling Equipment and Marine.