3000m DC 12V 24V 48V 868mhz 12CH 12channel RF Wireless Remote Control switch Industrial crane Multiple power relay transmitter Control Lights, TVs, Motors, Fans, Cameras, Video signals, Audio signals, electrically operated Doors/ Locks/ Windows. 1.Transmitter Channel:12CH Remote Control Distance:0-3000m ( Ideal Distance WITHOUT Any Block and Signal Interfere,Could Rise or Fall 10%-90% in Real Situation ) Encode: Frequency: 868MHZ Size:230 *60*46mm Power Supply: DC3V (2 section 5# AA battery Note that the batteries do not match) 2.Feature: 1.Working Voltage:12V --48V (12V 24V 36V 48V all is ok ) 2.Quiescent Current: less than 10mA 3.Working Current: 30mA (1 Relay) 4.Working Temperature:-40'C- +80'C 5. Receiving Sensitivity:more than -105dBm 6.Working Frequency:868MHZ 7.Relay: 10A AC250V 10A AC125V 10A DC30V 10A DC28V 8.Max Load: 10A Relay, Resistive load less than 8A, Inductive load less than 3A 9.PCB Size: 122*87*17mm 10.Case Size: 145*91*40 mm 2. The way ofoutput A. 1-12CH Momentary-----Press Transmitter Button 1to learn B. 1-12CH Latched----- Press Transmitter Button 2 to learn C. 1-12CH Toggle-- -- Press Transmitter Button 3 to learn D. 1-6CH Momentary, 7-12CH Latched ------Press Transmitter Button 4 to learn E. 1-6CH Momentary, 7-12CH Toggle------ Press Transmitter Button 5 to learn F. 1-4CH Momentary, 5-12CH Latched------- Press Transmitter Button 6 to learn G. 1-4CH Momentary , 5-12CH Toggle------- Press Transmitter Button 7 to learn H. 1-4CHToggle, 5-12CH Latched------- Press Transmitter Button 8 to learn Momentary------------Press the Transmitter button 1, the receiver relay 1th is ON, release button 1; the receiver relay 1th is OFF, the same as 2/3/4/5/6---12 are independent. Toggle---------------Press transmitter button 1 for 1 time, the receiver relay 1th is ON, press button 1 again, the receiver relay 1th is OFF, the same 2/3/4/5/6---12 are independent. Latched------------------ Press transmitter button 1, the receiver relay 1th is ON, the relay 2/3/4/5/6 ---12 is OFF. Press transmitter button 2, the receiver relay 2th is ON, the relay 1/3/4/5/6----12 is OFF. Press transmitter button 3, the receiver relay 3th is ON, the relay 1/2/4/5/6----12 is OFF Press transmitter button 4, the receiver relay 4th is ON, the relay 1/2/3/5/6----12 is OFF. . It also mean .Latched only can keep 1CH ON .and it will often have 1CH is ON. 3. Learning way and steps 1. Press the learning Button of the receiver and buzzer keep tweeting, indicate enter into the status of learning 2. Press the Relative button of the transmitter to learn Relative output way, indicate learning success as the buzzer tweet Be Be Be 3 sounds ,and then you press the transmitter Button you can hear the relay act sound. The receiver automatically exits learning state if you do nothing in 32 seconds. 4. Delete memory message Keep pressing the learning Button of the receiver, the buzzer buzzer tweet and Be Be Be Be then release the button , indicate success to delete the memory message. Note:This project has only have 868MHZ and no have other frequencies Package include: A:1* receiver (with cover) C:1* receiver(with cover) 1*transmitter D:1* receiver (with cover) 2*transmitter