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 Model No.: EVP-258M    
 
     specification
    Power supply:DC16V
    Power consumption:About 10W in operation;about 1W in standby
    Operation temperature:-15°C~+50°C
    Conversation System:Bi-directional conversation through the receiver
    Calling Tone:Ding Dong chime
    Cutoff-Time:Stakeout:1 minute,Conversation:1 minute
    Scanning Frequency:15.625KHz Vertical:50Hz
    External dimension:225(L)*170(W)*52(H)mm