• Compatible with SM-871DR (DIGILCDNDVR series receiver) only
• 2.4GHz wireless transmission up to 200 ft between walls and up to 490 ft in clear line of sight
• No Wi-Fi interference; no interference from crowded analog 900MHz/2.4GHz/5.8GHz/6.0GHz devices
• Pan Tilt indoor digital wireless camera with IR LEDs for night vision (30ft B/W)
• Infrared filtered camera for best vibrant color picture
• Built-in microphone for audible recording up to 30 ft away
• Digital wireless pairing channel (CH1/CH2/CH3/CH4), worry-free of signal interception
• Up to 4 mixtures of SM-804DT and SM-816DT camneras can be paired to SM-371DR or SM-804DR receiver

( Sold through our authorized reseller CU1.com. Do not click here for any promotion or clearance sale items )

Specifications: 

SM-821DT (PTZ Camera)
Image Sensor	CMOS Color
Resolution	Color 640 x 480 pixels (NTSC/PAL selectable)
Viewing Angle	Horizontal:210° /Vertical:90°
Audio	Microphone built-in(audio monitoring up to 30 ft)
Minimum Illumination	2 Lux (IR off); 0 Lux (IR on)
IR LED Night Vision Range	Up to 30 ft (B/W)
PTZ	Pan-Tilt, 2x digital zoom
Antenna	1 x Angle adjustable antenna
Consumption Current	500 ± 100mA
Mounting Bracket	Angle adjustable
Power LED Indicator	1
Power Supply	DC 5.0V/1.2A
Dimensions (LxWxH)	5” x 4.5” x 4” (inches)
Pairing Button	1
Wireless (General)
Frequency	ISM 2400 – 2483.5 MHz (CH1/CH2/CH3/CH4)
Transmission Distance	Up to 490 ft (150 m)clear line of sight; up to 200 ft (indoor)
Operating Temperature	14° F ~ 122° F
Operating Humidity	≤85% RH