Bi-directional talking Monitoring/Call/Talkback/Unlocking The doorbell and SOS interface Contrast&brightness is adjustable

TECHNICAL DATAWorking voltage:DC18VWorking current  50mA-450mA4"CRT or 4" LEDAudio SNR:≥70dBHarmonic distortion: ≤5% Temperature: -10°C~+55°CInstallation:  Surface wall mount type

FUNCTION CHARACTERISTICS

Bi-directional talkingMonitoring/Call/Talkback/UnlockingThe doorbell and SOS interfaceContrast&brightness is adjustableRelease information (Optional)Suitable for M-2000

Visual intercom , video door phone,in door phone M-BF10