if connect two terminals of <Upper Limit>
3) Setting Interlocking mode: Press the learning button in the receiver 4 times
the actual distance may not reach this maximum working distance
3) Setting Interlocking mode: When the receiver is in the status of LEARNING
1 X Transmitter: CB-4
AC One Remote Control Three Receiver RF Remote Control Kit With 30A High Power Output (Model 0020747) AC Power 6 Relay Output if connect two terminals ofPackage Include: 3 x Receiver: S2PU AC ANT3 1 x Transmitter: CV 6 CB 6 1 x User manual Application: This is a one transmitter many receivers system with 2 channel relay output. It including three S2PU AC ANT3 receivers and a CV 6 CB 6 transmitter. It may be used in all types of industry automation, agriculture, business, home, factory, house, farm, garage, vehicle, ship, aerial vehicle, etc. It can remote control different DC or AC equipment on land,