Feature: 1. The 433MHz frequency ensures sensitive and powerful signal reception and transmission. 2. Equipped with a remote control switch for easy remote operation. Used for access control switches, etc. 3. High sensitivity, the receiving distance is 20 meters. With NO/NC/NOM output interface. 4. High‑quality plastic materials and professional PCB circuit boards, no noise, no sparks, anti‑corrosion, moisture‑proof and anti‑vibration. 5. Manufactured according to the original production specifications, in line with strict quality standards. Specification: Item Type: Door Exit Switch Material: ABS Plastic Frequency: 433MHzNumber of Handles that Can Be Added: 16 Pairing Method: Learning Code Working Voltage: DC12V Working Current: 0.08A Receiving Distance: 20 meters/65.6ft Output Interface: NO/NC/NOM Remote Control Switch Power Supply: Built-in 1 x 80mah 27A 12V battery How to Use: 1. Connect the receiver to the device that needs to be controlled 2. Use the remote control switch to control the switch of the device. Package List: 1 x Remote Control Switch Transmitter1 x Receiver2 x Tapes