• Network : 433MHZ
• Item Type : Wireless Doorbell
• Input voltage : 23A 12V
• Wireless Parameter : Support frequency band 433MHz, support coding format eV1527
• Standby Current : Normally 0mA power-off
• Operating Temperature : -10℃ ~ + 50℃
• Operating Current : ≤ 40 mA
• Relative Humidity : < 80% (no condensation)
• Product Size : 48*76 *11 mm