This RC radio remote control switch 220V 230V 1 channel wireless control relay receiver with 5 transmitter keychains potential-free contacts relay controller

["Excellent Design】 RF wireless relay remote control switch. Stable and reliable performance with high reception sensitivity (> 97dBm). High-frequency signal transmission. Strong signal can pass through walls, floors, doors, boards, etc. It can be controlled within 30 meters in an open area. You can remotely control any machine connected to the relay receiver via the remote control. ["Easy to use】 Extremely easy to set up and reset. It is a programmable remote control kit. It can be programmed with 4 operating modes (Momentary / Toggle / Latched / Delay mode). You can easily program it yourself, depending on your needs. The operating mode of the product is adjustable. This item has already been set in the locked mode. ["More Flexibility】 This receiver uses a high-quality 5A relay that can be used over 100,000 times. This allows the product to be more durable and stable. There are 3 terminals (normally open pin, common pin, normally closed pin) for the wireless relay. This is a potential-free contact relay. Passive output. Dry contacts. 100V ~ 250V wide range voltage receiver. So 220V / 240V / 250V / 100V voltage can work well. ["Multiplayer Control】 One receiver can store about 20 transmitters. So you can share the transmitters with family/friends. The chip code is the EV1527 learning code, which represents the secure technology system. The remote control has a long lifespan. There is a screw connection on the back of the transmitter, and the battery can be replaced after disassembly. The battery is 2 pieces of CR2016 (included) or 1 piece of CR2032. ["Wide Application】 Products can be used in private households, farms, factories, offices, laboratories, supermarkets, etc. You can remotely control any device connected to the relay receiver via the remote control. such as garage door opener system, electric lock, electromagnetic door, lamp, lighting, ventilation unit, water pump, signal transmission, and DIY remote control switch.