DieseRC Wireless Remote Switch 433 MHz, 2 Channels AC 220V with Relay Receiver and 2 Remote Controls for Garage Door, Roller Shutter, Lights, Pumps,- Wireless remote switch with stable and reliable performance, with high receiver sensitivity (>97dbm). The powerful signal can pass through walls, floors and doors, allowing control within a distance of 50 meters without obstacles.​​ - Extremely easy installation and reset. Offers 3 operating modes (momentary, toggle, locked) to adapt to your needs. The operating mode is adjustable, and the products are pre-configured in toggle mode before delivery.​​ - The receiver contains 2 relays with 3 terminals each (normally open, common, normally closed). These 2 relays operate independently of each other, allowing individual remote control via the buttons on the remote control. Each receiver can store about 20 transmitters, and one transmitter can control multiple receivers. - These products are suitable for a variety of environments such as homes, farms, factories, offices, laboratories, supermarkets, etc. They allow you to remotely control various devices connected to the relay receiver via the remote control. This includes garage doors, electric doors, roller shutters, expansion doors, electric curtains, fans, lamps, lighting, ventilation devices, signal transmissions and much more. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.