Features: brand new and high quality. New item RF wireless remote control for DC 24V 4 Channel Mini Receiver + Transmitter for intelligent home. Has the advantages of simple matching, safe and reliable for the modification of ancillary products. Widely used in (remote control switch, remote control of the pump on and off, remote control machine on and off, remote control motor positive and negative, remote control socket, remote control LED, remote control audio, remote control electric door, remote control garage door, remote retractable door, remote control curtains, alarm host, alarm,remote control motorcycle, remote control electric car, remote control MP3, remote control lights, remote control for cars, security and other civil and industrial supporting remote areas. Working/output way: Models: 1)Toggle/Self-Lock: Press->On; Press again->Off press one button for one for time is working/ON .press the same button again is stop/OFF .(1 channel switch(receiver) need 1 button remote control (transmitter). 2)Latched/Inter-Lock: Press->On; Press other button->Off press one button is working/ON ,press another button is stop/OFF . ( 1 channel switch( receiver) need 2 buttons remote control (transmitter). 3)Momentary/Jog: Press and hold->On; Release->Off Keep pressing one button is working /ON. loosen your finger is stop/OFF .1 channel switch(receiver) need 1 button remote control (transmitter ) 4)Learn:Press the learning code, Loosen your finger ,press any button of the remote control ,the indicator flash 2 times and off .it means learning successfully . 5)Remove:Press the learning button about 8 seconds , the indicator turn on to off , it means the Code had been removed successfully. Specifications: 1.Transmitter Size: 6535mm8/2.561.380.31in (Approx.) Channel: 4 CH Material: Plastic + Metal Color: Black Buttons: 4 Buttons Operating frequency: 315MHz Remote Control Distance: 50m Power Supply: 1 X 12V/23A Decode: Fixed code, soldering Power Supply (Operating Voltage): for DC 24V Relay: for DC 24V Work Voltage Range of Relay: AC 110-240V or for DC 0-28V Sensitivity: -105 dBm Operating Temperature: -40 - 80 Encode: Fixed code, soldering 2. Receiver Decode: Fixed code, soldering Material: Plastic + Metal Color: Black Size: 755525mm/2.952.170.98in (Approx.) Operating Temperature: -40 - 80 Quantity: 1 Set (other accessories demo in the picture is not included) Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 2 X Remote Control Transmitter (including battery)(No retail package) 1 X Remote Receiver Module (including for shell)