to +60°C (-22°F to +140°F) operating temperature · IP65 (Silicone sealant is need. For details, see the quick start guide.).· IR illumination and night vision · Two-way audio and voice call through app · Tamper alarm · Standard PoE VTO1 Series | DHI-VTO1201G-P ...
(1080P@30fps) 256Kbps–2048Kbps Auto white light Auto IR light ICR auto switch G.711u 1 Built-in speaker Full duplex communication VTO Series | DHI-VTO6531H Audio Enhancement Audio Bit Rate Echo suppression and cancellation/digital noise reduction 16KHz, 16Bit Function Communication Mode Full...