Features: A great replacement for door open button or other switches of devices. An automatic switch for automatic regulation, safety protection and circuit conversion. Sensitive for receiving signal, 315M and 433M radio frequency is available for choice. Made of high-quality ABS material, safe without noise and spark, anti-corrosion, moisture-proof and anti-vibration. Universal, can be widely used in aerospace, marine, automobile, household appliances, machine tools, and other automatic control area. Light and compact, easy to use. Specifications: Material: ABS Weight: 55g Input: DV 10 - 14V Standby Current: < 5mA Radio Frequency: 315M, 433M Receiving Sensitivity: > 97dBM Memory Number: 50 Remote Control Type: Learning Code, Fixed Code Size of Circuit Board: Approx. 35 * 30 * 18 mm Package List: 1 * Wireless Circuit Board Relay 1 * Remote Control1、A great replacement for door open button or other switches of devices. 2、An automatic switch for automatic regulation, safety protection and circuit conversion. 3、Sensitive for receiving signal, 315M and 433M radio frequency is available for choice. 4、Made of high?quality ABS material, safe without noise and spark, anti?corrosion, moisture?proof and anti?vibration. 5、Universal, can be widely used in aerospace, marine, automobile, household appliances, machine tools, and other automatic control area.