Radio Remote Control Transmitter Model: V500 / V0500160000 - The conformal coated V Series are ergonomic, durable, sealed and easy to use radio remote transmitters. All exposed components on the transmitter are made from non corrosive materials. This transmitter is designed with Direct Sequence Spread Spectrum (DSSS) modulation for superior performance. It is a perfect complement to the Brand Series 21, Series 36 and Series 38 stackable directional control valves. Other control valves or solenoids meeting the appropriate specifications may be controlled as well.