Feature:1. Ultra low power consumption, high sensitivity response, RF remote control switch, can pass through the wall.2. Free setting of 3 working modes, convenient for users to use for different control functions.3. This is a remote controller without shell and buttons, reliable, practical, and durable.4. The EV1527 transmitter module with decoding can be used to control the remote controller with other devices.5. Input DC3V12V electricity to the transmission module, that is the transmission signal.6. Used for learning receiver, can be used in smoke sensing, or other induction settings, or other microcontrollers.Specification:Condition: brand newItem Type: Transmitter receiver module Material: PlasticColor: As pictures shownWorking Voltage: DC3V-DC12VModulation Method: ASKQuiescent Current: 0 uAWorking Current: 8-10maTransmitting Power: 35-50mWLaunch Distance: Approx.100-300m/328.1-984.3ftModule ParametersQuiescent Working Current: 0.6ma (ultra-low standby current)Relay Pull-In Current: 30maWorking Frequency: 433.92MHZSize: Approx.21x11x9mm/0.83x0.43x0.35in (ultra-small size)Coding Method: Learning type, add/clear remote control through learning pointWorking Mode: Inching, self-locking, interlocking.Package List:1 x Transmitter Module1 x Receiver Module