Key benefits Reliable remote control for AC devices: 433 MHz RF wireless switch designed for stable performance and reception sensitivity (> 105 dBm), enabling dependable on/off control of lights, motors and security equipment. Longrange, penetrative signal: Strong RF transmission passes walls, floors and doors and works up to 50 meters in open space. An external extendable antenna improves reception where needed. Flexible control and compatibility: Works with AC85V–240V systems and supports multiple operating modes (momentary, toggle, latched) so you can adapt behavior to different devices and scenarios. Secure and interferenceresistant: Builtin encryption reduces the chance of signal interference from other transmitters. Key features Frequency: 433 MHz RF wireless remote control. Sensitivity: reception sensitivity (> 105 dBm) for stable signal reception. Range: Up to 50 meters in open space; strong wall/floor/door penetration. Antenna: External extendable antenna for improved reception. Voltage compatibility: AC85V–240V for broad industrial and commercial use. Channel: Singlechannel receiver for onecircuit control. Learning switch: One or multiple transmitters can be paired with one or multiple receivers; paired devices do not interfere with each other. Operating modes: Momentary / Toggle / Latched. Default factory setting is latched mode (press ON to turn on, OFF to turn off). Easy setup and reset: Simple learning and reset procedure to pair transmitters and receivers and change operating mode without special tools. Typical use scenarios Remote lighting control: Wire the receiver to warehouse or outdoor lighting (AC85V–240V) and use the transmitter to switch lights from a distance, even through walls or doors. Security and access systems: Integrate with wireless alarms, electric doors or window openers to add remote activation and emergency shutoff without running wiring. Motor and lifting equipment: Control motors or lifting devices remotely on industrial or workshop equipment where reliable, longrange switching and selectable operating modes are required. Why customers choose this switch Works across a wide AC voltage range for broad compatibility with industrial and commercial equipment. Simple learning switch design lets you expand control (add transmitters or receivers) without signal conflicts. Adjustable operating modes let you match the switch behavior to the application (momentary for gates, latched for lights, toggle for repeated presses). External antenna and sensitivity offer better reception and fewer missed commands in buildings. Technical summary Frequency: 433 MHz Reception sensitivity: > 105 dBm Operating distance: up to 50 m (no obstacle) Voltage: AC85V–240V Channels: 1channel receiver Modes: Momentary, Toggle, Latched (factory default: Latched) Antenna: External, extendable Security: Encrypted RF signaling to reduce interference Usage notes Confirm your device's voltage and wiring before installation (AC85V–240V compatible). To change operating mode or pair transmitters, follow the included learning/reset procedure. For reception, extend and position the antenna away from large metal objects and dense concrete where possible.