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PTZ dome camera ModelSTK900CH22-IB2 STK900CH23BW-IB2STK900CH30BW-IB2STK900CH35BW-IB2Camera Image Sensor 1/4 –inch type CCD Effective Pixel PAL:752(H)×582(V) NTSC:768(H)×494(V) Horizontal Resolution 460 TVL(Color)540 TVL(Color) 570 TVL(B/W) Signal System PAL / NTSC Min.Illumination 1.0Lux/F1.40.2Lux/F1.4(Color) 0.001Lux/F1.4(B/W) White Balance Auto / Manual / ATW / Indoor / Outdoor AGC Auto / Manual S/N Ratio More than50dB BLC (ON / OFF) Electronic Shutter PAL:1/50 – 1/30,000NTSC:1/60 – 1/30,000PAL: 1/1.5-1/3-1/4,000s NTSC: 1/2-1/4-1/4,000s Day&Night ColorICR Optical Zoom 22233035 Digital Zoom 12X Privacy Mask At most24masks(OnlySONY48CP/N,SONY480CP/N,SONY960CP/N) Focus Model Auto / Manual LensFocal Length 4 88mm3.6 82.8mm3.4 102mm3.4 119mm Zoom Speed Approx.3.9SApprox.4.2SApprox.4.6S Angle of View 47°--- 2.2°54°---2.5°55.8°-2.0°55.8°-1.7° Min.Working Distance 10-1000mm Aperture Range F1.4-F3.7F1.6-F4.5F1.4-F3.6F1.4-F4.2 Pan and TiltPan Range 360° endlessPan Speed Pan Manual Speed:0.05° 250°s, Pan Preset Speed:400°/sTilt Range -2° 92° (Auto Flip)Tilt Speed Tilt Manual Speed:0.05° 200°/s, Tilt Preset Speed:300°/sNumber of Preset 256,(288 with our STK protocol)Patrol 8patterns,each patrol up to 32 presetsPattern 4 patterns, with the total recording time not less than 10 minPower-off Memory SupportPark Action Preset / Pattern / Patrol / Pan scan / Tilt scan / Random scan / Frame scan / Panorama scanPTZ Position Display (ON / OFF)Freeze Frame SupportPassword Protection SupportZone Scanning/Display SupportCamera Title SupportCompass Support, the north can be setScheduled Task Preset / Pattern / Patrol / Pan scan / Tilt scan / Random scan / Frame scan / Panorama scanRS-485 Connection Failure Diagnosis SupportManchester code and connection failures diagnosis SupportAlarmAlarm Input 7 inputs, priority configurableAlarm Output 2 outputs ,Support alarm response actionAlarm Action Preset / Pattern / Patrol / Pan Scan / Tilt Scan / Random Scan / Frame Scan / Panorama ScanInput/Output Monitor Output 1.0V[p-p] / 75Ω,NTSC or PAL,BNCGeneralMenu Language English RS-485 Protocols STK,PELCO-P and PELCO-D(addible)Power Supply AC24V/DC12VPower Consumption 30W (72W max with heater working ,outdoor)Working Temperature/Humidity -45 °C 65°C(outdoor) / -10°C 50°C(indoor) Humidity less than 90%Protection Level IP66(outdoor)Mounting Pendant mount / Wall mount / Pole mount / Corner mountDimension Φ240(mm)×275(mm)Weight 4.7kg