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| Image sensor | 1/2.8″ progressive scan CMOS |
| Mini. Illumination | Color：0.005Lux @ (F1.65，AGC ON)；B/W：0.001Lux @(F1.65，AGC ON);0 Lux with IR |
| Image setting | Flip, Mirror, Saturation, Brightness, Contrast, Sharpness, AGC, and AWB adjusted by client software/browser |
| Shutter Speed | 1/1 s – 1/100,000 s |
| White Balance | Auto/Manual/Indoor/Outdoor |
| Gain | Auto/Manual |
| Day & Night | IR Cut filter TVT TD-8423IS 4-Inch 2MP 25X Smart Tracking PTZ |
| Privacy Mask | Not supported by ver5.01 and supported by ver5.10 |
| 3D DNR | Auto/Manual |
| Image Enhancement | HLC, BLC, DWDR |
| Picture overlay | Logo picture could be overlaid on video with 128x128pixels,24bits jpg format |
| Lens | |
| Focus length | f=4.8-120mm lens,25x optical zoom |
| Zoom Speed | Approx. 3.6s (optical zoom, wide-tele) |
| Field of View | Horizontal:57.6° to 2.5°(wide-tele)； Vertical: 34.4° to 1.4°(wide-tele)；Diagonal: 64.5° to 2.9°(wide-tele) |
| Working distance | wide: 1.0m ~ INF; tele: 1.5m ~ INF |
| Aperture Range | F1.65 ~ F3.8 (wide-tele) |
| PTZ | |
| Pan Range | 360°endless TVT TD-8423IS 4-Inch 2MP 25X Smart Tracking PTZ |
| Pan speed | Configurable, from 0.4~80°/s; Max Preset speed: 80°/s |
| Tilt Range | From -5° to 90° |
| Tilt Speed | Configurable, from 0.4°~ 80°/s, Max Preset speed: 80°/s |
| Proportional Zoom | Yes |
| Preset | 360 TD-8423IS |
| Cruise | 8 cruises, up to 16 presets for each cruises |
| Track | 4 tracks, record time over 3 minutes for each track |
| Power off memory | Support |
| Action mode | Preset/Cruise/Trace/Auto Scan/Random Scan |
| 3D Positioning | Support |
| PTZ Position Display | Support |
| Schedule Task | Preset/Cruise/Trace/Auto Scan/Random Scan /Dome reboot |
| IR | |
| IR Distance | 150m |
| Smart IR | Yes, support facial priority and CPL priority |
| Network | |
| Max Resolution | 1920x1080 TD-8423IS |
| Main stream | 1920x1080 ,1280x720 25/30fps |
| Sub stream | 25fps (1280 × 720, 704 × 576 , 352 × 288); 30fps (1280 × 720, 704 × 480, 352 × 240) |
| Third Stream | 25fps (704 × 576, 480 × 240, 352 × 288) ; 30fps (704 × 480, 480 × 240, 352 × 240) |
| SVC | Yes |
| Video compression | Smart H.265/H.264/MJPEG |
| Protocols | HTTP, HTTPS, Ipv4/Ipv6, 802.1x, QoS, FTP, SMTP, UPnP, SNMP,DNS, DDNS, NTP, RTSP, RTCP, RTP, TCP/IP, UDP, IGMP, ICMP,DHCP, PPPoE |
| Simultaneous live view | Up to 6 channels |
| User / Host | Up to 16 users, 3 levels: Administrator, Advanced User and Normal User |
| Security Measures | User authentication (ID and PW), Host authentication (MAC address); HTTPS encryption, IEEE802.1x port-based network access control; IP address filtering |
| Smart Features | |
| Basic event | Motion detection, video tampering alarm, exception (network disconnected, IP address conflict, SD full, SD error) |
| Face detection | Default off, support max 15 human faces detection per second, support face comparison |
| Smart Detection | Intrusion detection, Line crossing detection, Region entrance detection, Region exiting detection, Scene change detection, Support alarm triggering by human or vehicle, filtering flag/animal. |
| Smart Tracking | Manual Tracking, Auto Tracking (human or vehicle by software setting) |
| System Integration | |
| Alarm Interface | None |
| Audio Interface | None |
| Alarm Linkage | Alarm actions, such as Preset, Cruise, Track, Memory Card Video Record, Trigger Recording, Notify Surveillance Center, Upload to FTP/Memory Card, Send Email, etc. |
| Network Interface | 1 RJ45 10M/100M Adaptive Ethernet (Support PoE 802.3.at) |
| CVBS | None |
| RS 485 | None TVT TD-8423IS 4-Inch 2MP 25X Smart Tracking PTZ |
| Storage | SD card slot inside, support microSD/SDHC/SDXC, up to 256G |
| API | ONVIF, support TVT SDK and third-party management platform |
| Client | TVT NVR 1.4.5, TVT NVMS 2.0; and the third-party client |
| Web Browser | IE8-11 |
| General | |
| Power | DC12V or PoE+ (802.3.at, class 3), (Max 22W, include IR on, Heater on, Fan working) |
| Working condition | -30°C ~ 55°C (-22°F ~ 131°F),90%RH less (non-condensing),Cold start at – 20°C |
| Storage condition | -40°C ~ 65°C ; ≤ 95% RH TVT TD-8423IS 4-Inch 2MP 25X Smart Tracking PTZ |
| Protection | IP66, 4000V Lightning Protection, Surge Protection and Voltage Transient Protection |
| Material | Aluminum Alloy; Plastic +Glass Fiber 10% |
| Dimensions | Φ 173mm × 247mm ( 6.8′ Φ × 9.7′) |
| Weight | Approx. 2.1 Kg (13.22 lb.) |
| Certification | IP66,ROHS,CE,FC |
| App version | Ver5.01 TVT TD-8423IS 4-Inch 2MP 25X Smart Tracking PTZ |
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