ELPA DHS-TMP2320 Video Door Phone, Wireless Intercom, No Wiring Required, Automatic Recording, Wide-Angle Camera, LED Light, Battery Operated

[Entrance Camera Sub-Unit DHS-C22] ■ Power Supply: 4 AA alkaline batteries (sold separately) / or DC 7V from the Monitor Unit ■ Battery Life: Approximately 8 months (20 seconds per use, 5 times per day, at 21°C) ■ Operating Environment: -10°C to 50°C, 90% humidity or less ■ Mounting Requirements: Surface-mounted, compatible with JIS single-unit switch box (with cover) ■ Wireless Communication Method: 1.9GHz DECT compliant ■ Angle of View: Approximately 130° (Horizontal) and 90° (Vertical) ■ Nighttime Shooting Method: Visible LED ■ Minimum Illumination: 2 lx ■ Dimensions (approx.): 100mm W x 128mm H x 34mm D (Maximum) ■ Weight: Approximately 210g (excluding batteries) ■ Water Resistance: IPX4 (Splash-proof) [Monitor Unit DHS-B30M] ■ Power Supply: AC 100V 50/60Hz (Cord length: Approximately 1.5m) ■ Power Consumption: (Standby) Approx. 0.8W / (Talk) Approx. 3.1W ■ Operating Environment: 0-40°C, 70% or less ■ Mounting: Surface-mounted (bracket included) ■ Wireless Communication Method: 1.9GHz DECT-compliant ■ Operating Range: Line-of-sight Approx. 100m