4 channels, 2 output relays NO or NC and 2 transistor outputs
controls up to 20 hand-held transmitters
every hand-held transmitter has its own 28-bit serial number
transmissions are 64-bit encoded statistical safety factor is 10
automatic output trigger adjustable from 0.5 seconds to 127 minutes, or manual trigger (single trigger = on, trigger again = off)
new hand-held transmitters can be added without adjustments on the receiver)