100% brand new and high quality Features: Self-lock,Momentary,Inter-lock,Delay,can change it by yourself in relay switch learn button. Switch control code can delete and re-learn older or new, all control need learn the switch control code, or that can not control switch. RF Signal can through walls, floors and doors, control switch receiver from any place within a reliable distance. Max range is up to 100m with no obstacle. Stable and reliable secuirty ,high confidentiality. Convenient to wireless control and connector, reduce wiring diagram engineering. Widely used in industrial control and security fields, such as light, motor, remote controller, wireless security alarm, wireless door alarm, wireless controller, etc. Receiver & Transmitter only, other accessories demo in the picture are not included Specification: Wireless Communication: RF Frequency: 433MHz Working Voltage: 12V Receiving Sensitivity: >97dbm Modulation Mode: ASK Working Temperature : -30 to +80 Output Terminal: NO, NC, COM Quantity: 1 Set Working mode: Momentary:Push the remote button , the relay connects, release the remote button , the relay dis-connects. Toggle:Push once the remote button , the relay connects , push twice the remote button , the relay dis-connects . Latching:Push the remote button A, the relay connects, push the remote button B, the relay dis-connect. Tiem delay mode :Push the remote control button , the relay connects , from when release the remote button , after 5s or 10s or 15s , the relay disconnect automatically . Clearing the code : Push the learning button on the receivers for 8 times , the codes will be cleaned . After clearning the code, all the remote control cannot work any more. Learning the code :(momentary) Push the learning key on the receiver once time , it comes into momentary setting mode . Wait for a moment , the LED will be off , it comes into learning state . Push the remote button , LED indicator on the receiver board will flash then come off . After 3 seconds, the LED indicator will be on again , learning successfully . Learning the code : ( Toggle ) Push the learning key on the receiver twice time , it comes into toggle setting mode Wait for a moment , the LED will be off , it comes into learning state . Push the remote button,LED indicator on the receiver board will flash then come off. After 3 seconds , the LED indicator will be on again , learning successfully . Learning the code :( Latching ) Note: When you choose for latching mode , in order to learn more remote control , you need to learn two different button , the first time learnt is for "ON", the second time learnt for "OFF". For example : button A = ON , button B = OFF Push the learning key on the receiver triple time , it comes into latching mode . Wait for a moment , the LED indicator on the receiver board will flash then come off. Push the remote button A . LED flash for 5 times . Push the remote button B . Led flash for 5 times . After 3 seconds , the LED indicator will be on again , learning successfully. A = ON , B = OFF . Learning the code :( Time delay mode ) Push the learning key on the receiver forth time , the time dealy for 5 seconds . Note: 1.No retail package. 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: 1 Pc x Receiver