| Technical Specification | 
| Model | 
DHI-VTO2111D-P-S2 | 
| System | 
| Main Processor | 
Embedded processor | 
| Operating System | 
Embedded LINUX operating system | 
| Button Type | 
Mechanical | 
| Interoperability | 
ONVIF | 
| Internet Protocol | 
SIP; P2P; IPv4; DNS; RTSP; RTP; TCP; UDP | 
| Basic | 
| Camera | 
1/4" 1MP CMOS high definition, low illumination/WDR, color/IR | 
| Angle of View | 
Horizontal: 107°; vertical: 61°; diagonal: 122° | 
| WDR | 
Yes | 
| Noise Reduction | 
3D noise reduction | 
| Video Compression | 
H.264 | 
| Video Resolution | 
Main stream: WVGA, 720P, D1  Sub stream: CIF, WVGA, QVGA, 1080P, D1 | 
| Frame Rate | 
PAL: 25 fps NTSC: 30 fps | 
| Video Bit Rate | 
256K to 4M | 
| Light Compensation | 
Auto IR | 
| D/N | 
ICR auto switch | 
| Audio Compression | 
G.711a; PCM; AAC | 
| Audio Input | 
1 | 
| Audio Output | 
Built-in speaker | 
| Audio Mode | 
Two-way voice call | 
| Audio Enhancement | 
Echo suppression and cancellation/digital noise reduction | 
| Audio Bit Rate | 
16KHz, 16Bit | 
| Function | 
| Communication | 
Full digital | 
| Unlock Mode | 
Card/App remote/indoor monitor unlock | 
| Card Type | 
IC card | 
| Motion Detection | 
Video motion detection | 
| Auto Snapshot | 
Auto snapshot can only be enabled on indoor monitors | 
| Leave Photos and Messages | 
Yes (SD card is needed) | 
| Web Configuration | 
Yes | 
| Performance | 
| Card Reading Distance | 
3cm–5cm | 
| Casing | 
PC+Acrylic | 
| Capacity | 
| Card | 
10,000 | 
| Port | 
| RS-485 | 
1 | 
| Electric Lock | 
1 | 
| Exit Button | 
1 | 
| Door Status Detection | 
1 | 
| Lock Control | 
1, normally closed by default | 
| Network | 
1 10Mbps/100Mbps network port (8-core white ribbon cable) | 
| Alarm | 
| Tamper | 
Yes | 
| General | 
| Color | 
Black | 
| Power Supply Mode | 
12V DC 1A  Standard PoE | 
| Installation | 
Surface mount | 
| Certifications | 
CE  FCC  UL | 
| Accessory | 
Brackets and alarm ribbon cable | 
| Dimensions | 
135mm×70.4mm×34.4mm (5.31"×2.77"×1.35") | 
| Protection Grade | 
IP65 (silicone sealant is needed, see the quick start guide) | 
| Operating Temperature | 
-30°C to +60°C (-20°F to +60°F ) | 
| Operating Humidity | 
10%RH–90%RH (non-condensing) | 
| Operating Altitude | 
Beneath 3000 m (9842.52 ft) | 
| Power Consumption | 
Standby≤1W, working≤5W | 
| Gross Weight | 
326 g (0.72 lb) | 
|   | 
  | 
| Model | 
DHI-VTH2421FB-P | 
| Main Processor | 
High performace embedded processor | 
| Operating System | 
Embedded LINUX OS | 
| Screen Type | 
Capacitive screen | 
| Display | 
7-inch TFT screen | 
| Resolution | 
1024 × 600 | 
| Video Compression | 
H.264 | 
| Audio Compression | 
G.711A/G.711U/PCM | 
| Audio Input | 
1 channel all-direction microphone | 
| Audio Output | 
Built-in 1.5W loudspeaker | 
| Audio Mode | 
Support dual-way bidirectional talk | 
| Audio Enhancement | 
Support echo cancellation/DNR | 
| Audio Bit Rate | 
16 kbps | 
| Communication Mode | 
Full digital | 
| Information Release | 
Support to receive and view notifications issued by center | 
| Leave Videos or Text Messages | 
Yes | 
| DND Mode | 
Support to set DND period | 
| Sub-station Quantity | 
9 | 
| Alarm Input | 
6 channel (switch quantity) | 
| Alarm Output | 
1 channel | 
| Network | 
1 RJ-45 | 
| SOS Alarm | 
Yes | 
| Casing | 
PC+ABS | 
| Appearance Color | 
Appearance Color | 
| Power Supply | 
Power Supply | 
| Installation | 
Wall mount | 
| Accessories | 
Default bracket  Default alarm cable | 
| Dimensions | 
119.6 mm × 221.5 mm × 21.5 mm (4.71" × 8.72" × 0.85") | 
| Operating Temperature | 
-10°C to +55°C (+14°F to +131°F) | 
| Operating Humidity | 
10%RH-95%RH | 
| Power Consumption | 
Standby≤4W, work≤6W | 
| Gross Weight | 
0.35 Kg (0.77 lb) | 
| Power Supply Mode | 
PoE or DC 12V | 
| Storage | 
Support Micro SD, maximum memory capacity 32 G, standard memory capacity 8 G | 
|   | 
  | 
| Model | 
DH-PFS3005-4ET-36 | 
| Main Processor | 
High performace embedded processor | 
| Ethernet Port | 
1×10/100 Base-T  4×10/100 Base-T (PoE power supply) | 
| PoE Power Consumption | 
Each power ≤30W, Total≤36W | 
| PoE Protocol | 
IEEE802.3af, IEEE802.3at | 
| Weight | 
0.5kg | 
| Dimension(W×D×H) | 
170mm×100mm×35mm |