Video Inspection System for Sewer Inspecting with 512Hz Transmitter

Video inspection system for sewer inspecting with 512HZ transmitterSewer inspecting listing description1) cmos camera head with 512HZ transmitter built-in2) 20m fiberglass push rod cable with stainless steel cable reel3) 4400mAh li-ion battery pack4) DVR control box with A/V & photo selection availableSewer inspecting detailed descriptionCamera Head* Camera head size Φ 23 X 45mm for pipe Φ 25 to 200mm* Camera head housing material stainless steel* Camera lens cover material sapphire glass* Sensor size 1/4 inch* Total Pixels PAL 720X576; NTSC 720X 480* Field of view 120° * Camera lighting 12 white LEDsMonitor* 7 inch TFT LCD monitor* Power supply DC 12VDVR Control Box* DVR power supply 12V* DVR work current 200mA* Storage medium SD card (8G SD card included)* Li-ion Battery power supply (18650 X 6 PCS 4400mAh)* Charging time 5 hours, working time 6 hours* USB jack for Keyboard* MIC on / off button and earphone output jack ( earphone bud included)Cable Reel with Meter Counter* Counter device on the cable reel error rate less than 0.1%* Stainless steel Cable Reel size Φ 320 X 110mm* 20m Φ 5.2mm fiberglass rod push cable (30m, 40m optional)Carrying case* ABS Carrying case size: 520 X 435 X 200mm* Unit operating temperature: -10 to 50 degrees Celsius, RH 95% maximum* Storage temperature: - 20 to 70 degrees Celsius, RH 95% maximum