【Great Design】 Switch 433 MHz RF wireless remote control. Stable and reliable performance with high sensitivity. reception level (> 97 dBm). Radio frequency signal transmission. A strong signal can pass through walls, floors, doors, signs, etc. It can be controlled à less than 50 meters away in an open area. You can control it from anywhere. remote control of each machine connected to the relay receiver via the remote control. 【Easy to use use】Extremely easy to use configure and reset. There are 4 working modes (momentary/toggle/latched/delay mode) that can be chosen. You can easily configure it yourself according to your needs. The operating mode of the product is adjustable. This element has already been used. Summer configured in locked mode. 【More flexibility】This receiver adopts a relay 10A, which can charge high-power electrical appliances to ensure stability control. à long term. There are 3 terminals (normally open, common, normally closed) for the wireless relay. 【Security