Alecto ADB-11 വയർലെസ്സ് ഡോർബെൽ ഉപയോക്തൃ ഗൈഡ്
Alecto ADB-11 Wireless Doorbell Technical specifications Frequency: 433MHz ASK Transmission power: <10mW Power supply indoor: 2x AA alkaline battery Power supply outdoor: CR2032 Lithium battery Power: Requires 2x 1.5V AA Alkaline Batteries and 1x 3V CR2032 Penlite Battery Melodies: 36…