Feature: 1. [Multi Purpose] Suitable for electrical control circuits for anti theft alarm, electric door and window, signal control, industrial control, lifting equipment, etc. 2. [Direct Control] Mini relay remote control switch, independent output of module relay contact, 7mA working current, very suitable for direct control of various loads. 3. [Anti Interference] The RF switch adopts the learning code wireless coding technology (space pairing), no directionality, and the switches do not interfere with each other. 4. [3 Working Mode] 3.5V‑12V learning code remote control switch, self locking, interlocking, jog user free adjustment, can realize one control multiple, multiple control one. 5. [Easy To Use] Each channel of the receiving board can withstand 3A current, and can directly drive DC and AC loads, the relay has a set of normally open (normally closed) contacts. Specification: Item Type: Mini Relay Remote Switch Material: ABS Working Voltage: DC3.5V-DC12V Maximum Load: 3A (Better Load is Less Than 2A) Working Frequency: 433MHz Standby Quiescent Current: 0.1mA Working Current: 7mA Frequency Deviation: ≥0.2MHz Working Temperature: -20℃-+80℃ Receiving Sensitivity: ≥-110dBm Built in Button Battery of Remote Control: 2 x CR2016(75mAh) . Package List: 1 x Wireless Module1 x Remote Control