Features:   
* Alloyed shell, extra alloyed top cover, heavy duty weatherproof for outdoor usage
* 26 Infra-red LEDs ultra night-time vision (effect range: 45 feet)
* Comes with 12V A/C adapter, camera is also designed for car power connection and usage
* Built-in microphone for video and audio monitoring  
* Up to 330feet transmission range in open space  
* Compatible with 9901A ultra 2m-antenna to super charge 1.5X the transmission range
* Flexible mounting base, with option to connect to camera on base or on the back side
* 4 channels available to avoid possible interference (not adjustable)
* 380 TV lines sharp picture display                                                  
GP-823T (Specification)
Item Unit Value
Imaging Sensor Inch 1/3-inch CMOS
CMOS Total Pixels Pixels 628×582(PAL)
510×492(NTSC)
Horizontal Resolution TV Lines 380
Minimum Illumination Lux 1.0Lux / F2.0 & 0Lux(IR ON)
Frequency MHz ISM 2,400~2,483  4CH*
Transmission Power mW 10mW/CE; 2mW/FCC
Modulation Mode ※ FM
Bandwidth MHz 18
Power Supply VDC 12
Consumption Current mA 90 & 260(IR ON)
Operating Temperature ℃/℉ -10 ~ +50 / +14 ~ +122
Operating Humidity RH 85%
Dimensions(W×L×H) mm Φ61×96×136（inlcuding bracket)
Weight g 296
Unobstructed Effective Range m 100(Min)
Night Vision Range m 15
*Channel Frequency: CH1=2414MHz;CH2=2432MHz;CH3=2450MHz;CH4=2468MHz