Features:
Comes with a 4CH wireless receiver module and a 4-key RF transmitter.
Widely used to control light bar, lamp, fan, home appliances, machinery and equipment, roll gate, shutter curtain, etc.
Control the relay by transmitter or learning button on the module, so that achieve hand-control and remote control.
4 channels in total, each one can learn or set respectively.
Self-locking and jogging output, two modes can be shifted from one to another.

Specifications:
Condition: 100% Brand New
Material: Plastic
Color: Showing as picture
Input Voltage: 11-12.5V 
VCC: Connect the power supply positive
GND: Connect the power supply negative
Operating Current: about 180mA(relay absorb state)
Static Operating Current: about 8mA(relay release state)
Module Type: 433MHz 4CH 12V learning wireless module(4 channels can learn separately)
Receiving Distance: between 15~100 meters (can go through the wall)
Working Mode: self-locking, jogging two kinds of work modules (each channel can be independently set to self-locking or jog)
Work Instructions: D5 (power indicator), D1-D4 (relay switch indicator), D6 (learning indicator)
Output Mode: normally opened (CK), common (COM), normally closed (CB) 
(Note: normally closed and common in the normal state is connected, so that the output of the module is used as a switch; The switch is often used when the closed end is usually not used, only the normally open and common)
Receiver Module Size: approx. 6.5 x 5.6 x 2.2cm / 2.56 x 2.20 x 0.87inch
Weight: approx. 77g

Package Included:
1 x Receiver Module
1 x 4-Key Transmitter

Learning Method:
 Power on first, press the learning button S1, immediately release, immediately press and hold S1 (faster), learning light D6 flashes once; and then release the S1 key; hold the remote control button which  needs to learn, when learning instructions light flashes twice, it indicates that the first channel studies successfully.
Other three channels to learn as the same way, CH2, CH3, CH4 respectively, corresponding to the keys S2, S3, S4.

Elimination Method:
Power off, press and hold S1-S4 any one learning button, then power on, when the learn indicator flashes 4 times, release button, finish elimination of the previous setting for module.

Self-locking  & Jogging Function Conversion Instruction( without interlocking function)
      Each channel is set independently, as the same way
 Jogging: power off, press and hold the learning button and then power on, learning indicator D6 flashes twice, release button, now successfully set as jog output.
 Self-locking: power off, press the learning button and then power on, learning indicator D6 flashes there times, release button, now successfully set as self-locking output.