RicherR WiFi GSM Alarm SystemPortable 433MHz Wireless Chain Panic Button for WiFi GSM Alarm System Security Emergency Call Doorbell

Description: This item can be added to the Connected Electronic Alarm Systems. Ideal in case of emergency or break-in, silently trigger the system with a simple push of the button. Specification: Condiiton: 100% Brand New Power Requirements: CR2032 button battery. Current consumption: 8 ~ 12mA Transmission frequency: 433 ± 0.2 mhz Sent time: less than 1s Power DC: 1.5V button battery. Operating temperature: -10 ~ 55 degrees. Operating temperature: less than 80% (no solidification) Size: 35 x 11 x 60 mm / 1.38 x 0.43 x 2.36 inch (appr.) Package Included: 1 x Emergency Call Doorbell (Not include the battery) Notice: Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering. Please understand that colors may exist chromatic aberration as the different placement of pictures.