55-inch 4K Monitor Features: Designed for surveillance, high reliability and stability 55" LED backlight with wide display equipment 4K resolution is 4 times the resolution of 1080p, providing a wider view and more fine detail Multiple inputs: HDMI, VGA, RJ45, USB Narrow front bezel Wide view angle: Horizontal 178°, Vertical 178° 24/7 operation Specifications: Display Screen Size - 55” Active Display Area - 1209.6 (H) mm × 680.4 (V) mm Resolution - 3840 × 2160@60 Hz Backlight - LED Pixel Pitch - 0.315 (H) mm × 0.315 (V) mm Brightness - 350 cd/m² Viewing Angle - 178° (H) / 178° (V) Color Depth - 8 bit Contrast Ratio - 1200:1 Response Time - 8 ms Refresh Rate - 60 Hz Haze - 1% Reliability - 7 × 24 H Color Gamut - 72% NTSC Interface Video & Audio Input - HDMI 1.4 × 1, HDMI2.0 × 1, VGA × 1, Audio in × 1 Video & Audio Output - Speaker (6Ω 7W) × 2 Data Transmission Interface - USB × 1 Control Interface - RS232 × 1 Power Power Supply - 100~240 VAC, 50/60Hz Power Consumption - ≤ 145 W Standby Consumption - ≤ 0.5 W Working Environment Working Temperature - 0℃ to 40 ℃ (32 ℉ to 104 ℉) Working Humidity - 20% to 80% RH (Non-Condensing) Storage Temperature - -20 ℃ to 60 ℃ (-4 ℉ to 140 ℉) Storage Humidity - 10% to 90% RH (Non-Condensing) General Casing Material - Plastic VESA - 200 mm × 200 mm (4 × M6-25 mm) Bezel Width - 8.24 mm (top/left/right), 20.69 mm (bottom) Product Dimensions (W × H × D) - Without stand: 1230.08 mm × 713.39 mm × 85.55 mm (48.43" × 28.09" × 3.37") With stand: 1230.08 mm × 786.86 mm × 267.87 mm (48.43" × 30.98" × 10.55") Package Dimensions (W × H × D) - 1360 mm × 860 mm × 160 mm (53.54" × 33.86"× 6.30") Net Weight - Without stand: 11.42 kg (25.18 lb) With stand: 11.66 kg (25.71 lb) Gross Weight - Without stand: 15.85 kg (34.94 lb) With stand: 16.09 kg (35.47 lb) Packing List - Power cable × 1, remote control × 1, user manual × 1, HDMI cable × 1, base bracket × 1