Features: This is a learning code wireless remote control switch (receiver). It is easy to pair with the transmitter (remote control). Strong signal capable of passing through walls, floors, and doors, allowing control of the receiver from any location within a reliable range. Compact size with stable and reliable performance, offering high receiving sensitivity. Suitable for applications such as automatic doors, windows, lifting equipment, access control systems, and more. Ideal wireless relay remote control for computer mainframes. Specifications: - Working Voltage: DC4V–12V (including 4.5V, 5V, 6V, 7.4V, 9V, 12V) - Standby Current: 7–9mA - Working Current: 70–130mA - Relay Rating: 20A (14VDC), 12A (120VAC), 7A - Maximum Load: 10A (recommended load less than 7A) - Learning Code: Equipped with a learning button to add transmitter - Working Mode: Momentary or Toggle mode, selectable via jumper - Compatible with computer mainframes - Size: Approx. 43 x 30 x 22mm (1.69 x 1.18 x 0.87 inches) - Remote Size: Approx. 60 x 30 x 12mm (2.36 x 1.18 x 0.47 inches) - Quantity: 1 piece - Package Weight: 50g - Package Included: 1 x Relay Remote Control Switch, 1 x Transmitter (other items in the image not included) Operation Modes: - Momentary Mode: Press and hold to turn ON, release to turn OFF - Toggle Mode: Press once to turn ON, press again to turn OFF Terminal Definitions: - GND: Input GND - VCC: Input VCC+ - NC: Normally Closed - COM: Common - NO: Normally Open Clearing Code: Press and hold the receiver’s learning button for approximately 5 seconds until the LED indicator changes from ON to OFF, indicating the code has been cleared. Learning Code (Momentary/Toggle Mode): Press the receiver’s learning button; the LED will flash slowly, indicating entry into learning mode. Press the transmitter button; the receiver’s LED will flash rapidly twice and then return to slow flashing, indicating successful learning. Press the learning button again to turn off the LED, completing the learning process. Note: The new or old version of this product may be shipped randomly. Please ensure you are comfortable with this before placing your order.