IP Cameras › Uho-S2E-M4
UniarchIndoor Pan & Tilt Wi-Fi
4MP Indoor Pan & Tilt Wi-Fi
Uho-S2E-M4
4MP indoor Wi-Fi camera with a real motorized pan-tilt head — 340° pan, -5° to 55° tilt, Auto Tracking and two-way audio. No network cable, just power and connect over 2.4GHz Wi-Fi.
4 MP · 2560×1440@25fpsWi-Fi · 2.4GHz built-in antennaEthernet · 1×RJ45 wired fallbackAuto Tracking · follows moving subjects2-Way Audio · mic + speakerHuman Detection · + audio detectionMicroSD · up to 512GB
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The Uniarch Uho-S2E-M4 is a 4MP indoor Wi-Fi camera with a real motorized pan-tilt head, not just a fixed mount angle. It pans 340° and tilts from -5° to 55°, with Auto Tracking that follows moving subjects and 20 presets for jumping straight to a spot you check often. Built-in mic and speaker support two-way audio, and it detects people over Wi-Fi with no network cable required.
Is this the right camera for you?
Plain-language guide for buyers and installers — based only on what this camera actually does.
Baby & family monitoring, hands-freeAuto Tracking follows your baby or family members around the room on its own, and Audio detection flags loud sounds so you don't have to watch the feed constantly.
Whole-room coverage from one cornerMotorized 340° pan and -5° to 55° tilt reach corners a fixed camera can't, and 20 presets jump straight to the doorway, crib or desk.
Check in and talk backBuilt-in mic and speaker support two-way audio — talk to family, pets or visitors remotely through the phone app.
Small offices & countersHuman body detection cuts down false alerts versus plain motion detection, and the built-in RJ45 port lets you plug in a wired connection instead of Wi-Fi wherever that's more reliable.
Local recording you controlMicroSD edge storage up to 512GB keeps footage on the camera itself — no monthly cloud subscription required to have a recording.
5-minute DIY setupNo electrician needed — plug in the Micro-USB power, join your Wi-Fi from the app, and start watching in minutes.
Not the right pick if you need…
- Outdoor or weatherproof installation — this is an indoor-only camera with no IP-rated enclosure
- PoE power — there's no PoE port, it runs on its own DC5V/1.5A Micro-USB adapter
- Long-distance night vision — IR reaches 10m (33ft), built for room-scale distances, not yards
- On-screen privacy masking from the phone app — Privacy Mask only works when the camera is connected to an NVR
- Vehicle, pet, or crying-specific detection — this model does human body, motion and audio detection only
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Key Features
Complete list from the official datasheet.
High quality image with 4MP, 1/3" CMOS sensor
4MP (2560×1440)@25/20fps; 3MP (2304×1296)@30/25fps; 2MP (1920×1080)@30/25fps
Ultra 265, H.265, H.264
Built-in Mic & Speaker, support two-way audio, offer better interaction
IR night vision, up to 10m (33ft) IR distance
Support 512 G Micro SD card
Wi-Fi connection and easy installation
Night vision: infrared only
Switchable Auto/Manual IR — set it per room.
IR MODE
Invisible infrared — discreet black & white night vision
IR night vision up to 10 m (33 ft.) at 850 nm, with Auto/Manual IR On/Off control. This model has a single IR illuminator only, no warm-light module.
How wide a view at each distance
Scene width covered at typical mounting distances — the number you need to work out how many cameras a wall, yard or aisle takes.
| Distance | 79.0° |
|---|---|
| 5 m16 ft | 8.2 m27.0 ft |
| 10 m33 ft | 16.5 m54.1 ft |
| 15 m49 ft | 24.7 m81.1 ft |
| 20 m66 ft | 33.0 m108 ft |
| 30 m98 ft | 49.5 m162 ft |
Calculated from the horizontal field of view in the specifications below: width = 2 × distance × tan(FOV ÷ 2). Lens distortion and mounting angle are not included.
Who uses it, where to place it and how to connect it
Written for the Uho-S2E-M4 from its official datasheet: 4 MP indoor pan-tilt camera with 2.4 GHz Wi-Fi plus one RJ45 10/100 Ethernet port, fixed 4.0 mm lens with a wide 79.0° view, 340° pan / -5° to 55° tilt with auto tracking, 10 m IR, main stream up to 6144 Kbps, 5 V Micro-USB power.
Who it is for
- Shops and offices with network sockets — The 79.0° lens covers about 8.2 m at 5 m, and a cable from the nearest data socket carries the 4 MP stream without loading the shared Wi-Fi.
- Houses where Wi-Fi does not reach every room — Concrete walls and long corridors stop 2.4 GHz; the RJ45 port means the camera can still go in the far bedroom or the garage-side room.
- Families keeping an eye on kids or relatives — Auto tracking, human body and audio detection, and two-way audio through the built-in mic and speaker, with a wired link that does not drop at night.
- Sites with several indoor cameras — At up to 6144 Kbps per camera, three times the 3 MP S2E model's 2048 Kbps, wiring is what keeps a multi-camera install stable.
Where and how to place it
- Power socket plus data point — Wired use means two leads at the camera: the DC 5 V / 1.5 A Micro-USB power cable and an RJ45 patch cable. Choose a spot near both, or run a new Cat5e/Cat6 line back to the router or switch, within 100 m.
- Leave slack for the motor — The head pans 0–340° and tilts -5° to 55° at up to 50°/s. Leave a loose loop of both cables behind the camera so a preset move or auto tracking never pulls the plugs or drags the camera off the shelf.
- High shelf or ceiling — With only 5° of downward tilt, it cannot look down from a desk. Use a high shelf, or mount it upside down on the ceiling with the 180° flip so the 55° side faces the floor; aim the 20° pan gap at a wall.
- Keep bright windows behind the camera — BLC and HLC are N/A (digital WDR only), so faces in front of a sunny window or glass door go dark. Mount it on the window wall looking into the room.
- Indoor only — Rated -10 °C to 55 °C and up to 95% RH non-condensing, with no IP rating. Not for porches, bathrooms or above a stove.
What the 4.0 mm lens sees, and how it connects
Optically it matches the Wi-Fi-only Uho-S2-M4: a 79.0° lens covering about 4.9 m at 3 m and 8.2 m at 5 m, moved through 340°. What sets it apart is the wired 10/100 port, which matters more here because the 4 MP stream can reach 6144 Kbps.
| Uho-S2E-M4 · 4.0 mm | |
|---|---|
| Horizontal view angle | 79.0° |
| Width covered at 3 m | 4.9 m |
| Width covered at 5 m | 8.2 m |
| Pixels per meter at 5 m | ≈ 311 px/m |
| IR night vision | 10 m · 850 nm |
| Pan / tilt range | 0°–340° / -5° to 55° |
| Presets | 20 |
| Network | 2.4 GHz Wi-Fi + RJ45 10/100 |
| Main stream bit rate | 128–6144 Kbps |
- One camera in a corner of a room up to about 5 m deep sees 8.2 m of width at the far wall, so presets are needed only for the sides.
- If you plan more than one or two of these on the same access point, use the cable: each can send up to 6144 Kbps.
Widths are calculated from the 79.0° horizontal view angle (width = 2 × distance × tan(angle ÷ 2)); pixels per meter = 2560 horizontal pixels ÷ width. The datasheet gives no DORI distances. Other figures are from the official datasheet.
Full Specifications
Complete official specifications from the manufacturer's datasheet (technical values in English).
Camera
| Max Resolution | 4 MP |
| Sensor | 1/3.0" CMOS |
| Min. Illumination | Colour: 0.01 lux (F2.0, AGC ON), 0 lux with IR on |
| Day/Night | IR-cut filter with auto switch (ICR) |
| Shutter | Auto/Manual, 1/4 to 1/100000 s |
| S/N | > 52 dB |
| WDR | DWDR |
Lens
| Focal Length | 4.0 mm |
| Iris Type | Fixed |
| Iris | F2.0 |
| Field of View (H) | 79.0° |
| Field of View (V) | 42.3° |
| Field of View (D) | 85.1° |
Illuminator
| Supplemental Light | IR |
| Illumination Distance (IR) | Up to 10 m (33 ft.) |
| Wavelength | 850 nm |
| IR On/Off Control | Auto/Manual |
Video
| Video Compression | Ultra 265, H.265, H.264 |
| Frame Rate | Main Stream: 4MP (2560×1440), max. 25 fps; 3MP (2304×1296), max. 30 fps; 2MP (1920×1080), max. 30 fps; 720P (1280×720), max. 30 fps · Sub Stream: 640×360, max. 30 fps; 2CIF (704×288), max. 30 fps; CIF (352×288), max. 30 fps |
| Video Bit Rate | 128 Kbps to 6144 Kbps |
| U-code | Support |
| OSD | Up to 2 OSDs |
| Privacy Mask | Support (only NVR) |
| ROI | Up to 8 areas |
| Video Stream | Dual streams |
Image
| White Balance | Auto, Outdoor, Fine tune, Sodium lamp, Locked, Auto2 |
| Digital Noise Reduction | 2D/3D DNR |
| Smart IR | Support |
| Flip | Normal, Flip vertical, Flip horizontal, 180° |
| Dewarping | N/A |
| HLC | N/A |
| BLC | N/A |
| Defog | Digital defog |
Events
| Basic Detection | Human body detection, Motion detection, Audio detection |
| General Function | IP address filtering, Access policy, ARP protection, RTSP authentication, User authentication, HTTP authentication |
Intelligent
| Auto Tracking | Support |
Audio
| Audio Compression | G.711U, G.711A |
| Audio Bitrate | 64 Kbps |
| Two-way Audio | Support |
| Suppression | Support |
| Sampling Rate | 8 kHz |
Storage
| Edge Storage | MicroSD, up to 512 GB |
| Network Storage | ANR |
Network
| Wi-Fi | 2.4G Wi-Fi (IEEE802.11b/g/n), built-in antenna |
| Protocols | IPv4, TCP, UDP, DHCP, RTSP, DNS, DDNS, NTP, HTTP |
| Compatible Integration | API |
| Client | APP, Uniarch client |
| Web Browser | Plug-in required live view: IE 10+, Chrome 45+, Firefox 52+, Edge 79+ |
Wi-Fi
| Wireless Standards | IEEE802.11b/g/n |
| Frequency Range | 2.4 GHz to 2.4835 GHz |
| Channel Bandwidth | 20 MHz Support |
| Modulation Mode | 802.11b: CCK, QPSK, BPSK; 802.11g/n: OFDM/HT |
| Wi-Fi Security | 64/128-bit WEP, WPA-PSK/WPA2-PSK |
| Transmit Power | 802.11b: 17±1.5 dBm@11 Mbps; 802.11g: 14±1.5 dBm@54 Mbps; 802.11n: 12.5±1.5 dBm@150 Mbps |
| Receive Sensitivity | 802.11b: -90 dBm@11 Mbps (Typical); 802.11g: -75 dBm@54 Mbps (Typical); 802.11n: -74 dBm@150 Mbps (Typical) |
| Transmission Rate | 802.11b: 11 Mbps; 802.11g: 54 Mbps; 802.11n: up to 150 Mbps |
PTZ
| Pan Range | 0° ~ 340° |
| Pan Speed | 17°/s ~ 50°/s, Preset speed: 50°/s |
| Tilt Range | -5° ~ 55° |
| Tilt Speed | 17°/s ~ 50°/s, Preset speed: 50°/s |
| Number of Presets | 20 |
Interface
| Audio I/O | N/A |
| Alarm I/O | N/A |
| Built-in Mic | Support |
| Built-in Speaker | Support |
| WIFI | Support |
| Network | 1 × RJ45 10 M/100 M Base-TX Ethernet |
Certification
| EMC | CE-EMC (EN 55032, EN 61000-3-3, EN IEC 61000-3-2, EN 55035); FCC (FCC 47 CFR part15 B) |
| RF | FCC ID (FCC CFR 47 part15 C); CE RED (EN 301 489-1, EN 301 489-17, EN 300 328, EN 62311) |
| Safety | CE LVD (EN 62368-1) |
| Environment | CE-RoHS (2011/65/EU; (EU) 2015/863); WEEE (2012/19/EU) |
General
| Power | DC 5 V/1.5 A, Micro USB interface |
| Dimensions | Φ80 mm × 120 mm (Ø3.1" × 4.8") |
| Weight | 0.18 kg (0.40 lb.) |
| Working Environment | -10 °C to 55 °C (-14 °F to 131 °F), Humidity: ≤ 95% RH (non-condensing) |
| Storage Environment | -10 °C to 55 °C (-14 °F to 131 °F), Humidity: ≤ 95% RH (non-condensing) |
| Reset Button | Support |
| LED Indicator | 1, red/blue |
Dimensions
Engineering drawing reproduced 1:1 from the official datasheet.
unit: mm (in.)
| Dimensions | Φ80 × 120 mm (Ø3.1" × 4.8") |
| Weight | 0.18 kg (0.40 lb.) |
| Pan range | 0° – 340° |
| Tilt range | -5° – 55° |
4MP Wi-Fi Camera with RJ45 FAQ — Uho-S2E-M4
What is the difference between the Uho-S2E-M4 and a Wi-Fi-only camera?
The E version adds a wired RJ45 Ethernet fallback port on top of 2.4G Wi-Fi (IEEE 802.11 b/g/n). If the wireless link is crowded — common in dense neighborhoods and markets — you cable it to the router and keep the same 4MP camera working reliably.
What resolution and codecs does it offer?
Main stream up to 4MP (2560×1440) at 25 fps, with 3MP and 2MP modes reaching 30 fps. Compression is Ultra 265, H.265 or H.264 with U-code, bit rate adjustable from 128 to 6144 Kbps, and dual streams keep remote viewing light on mobile data.
Does it track people automatically?
Yes. Human body detection spots a person, and auto tracking moves the motorized pan-tilt through 340° of pan and -5° to 55° of tilt to keep them in view. Motion and audio detection add extra triggers, and the 79.0° horizontal lens view reduces blind spots.
Can it record without an NVR, and for how long?
Yes, it records to a MicroSD card up to 512 GB standalone. Actual retention depends on the bit rate you set within the 128–6144 Kbps range; U-code smart encoding stretches storage further. ANR support syncs card footage back to network storage after outages.
How well does it see in a dark room?
Smart IR at 850 nm illuminates up to 10 m (33 ft), covering typical rooms, with auto or manual IR control and an IR-cut filter for day/night switching. Color video works down to 0.01 lux, and 2D/3D noise reduction keeps low-light footage clean.
I am installing four Uho-S2E-M4 cameras in one shop: Wi-Fi or cable?
Cable wherever you can. Each camera's 4 MP main stream can reach 6144 Kbps, so four cameras may push about 25 Mbps continuously onto one 2.4 GHz network that runs on a 20 MHz channel and is shared with phones and the card terminal. On cable the same load is easy for 10/100 ports and a small switch, and Wi-Fi stays free for everything else. If one camera sits where no cable can go, leave just that one on Wi-Fi.
How long can the Uho-S2E-M4's network cable be, and can I plug it into a PoE switch?
Up to 100 m of Cat5e or Cat6 per run, as for any 10/100 Ethernet port; for longer distances put a switch in between. The port carries data only, so the 5 V Micro-USB adapter is still required. A standard IEEE 802.3af/at PoE switch port is safe because it only powers devices that identify themselves as PoE, but do not connect a passive PoE injector or an always-on 24 V/48 V port.
My Uho-S2E-M4 keeps alerting when the dog walks past: how do I fix that?
Use human body detection for alerts and turn plain motion alerts off; motion detection reacts to any movement, and this model lists no pet class. Also keep fans, curtains and TV screens out of the preset the camera rests on, and switch audio detection off if the dog barks often. If separate pet alerts are what you want, the 3 MP Uho-S2E-M3-A lists ultra motion detection with a pet class.
Can the Uho-S2E-M4 film through a window at night, for example a driveway?
Not well: its 850 nm IR reflects off the glass, so the night image becomes glare or a reflection of the room. If you try it, set IR to manual off (Auto/Manual control is listed), keep the room dark, put the lens close to the glass and rely on outdoor lighting. By day it works, though with no BLC or HLC a bright sky can darken the scene; for a driveway an outdoor camera is the better tool.
Does wiring the Uho-S2E-M4 make it safer from jamming and hacking?
Against jamming and Wi-Fi drop-outs, yes: a cable does not depend on the 2.4 GHz radio. Against hacking, what protects you is the account: set a strong admin password at setup, keep firmware current, share access from the owner's app account, and use the listed protections (user, HTTP and RTSP authentication, IP address filtering, access policy, ARP protection). Wi-Fi security, when used, goes up to WPA2-PSK; privacy masking is listed for NVR use only.
What happens to the Uho-S2E-M4 in a power cut, and how long would a power bank run it?
It has no battery, so it shuts down and restarts on its own when power returns, keeping what is already on the microSD card. A power bank that supplies 1.5 A at 5 V can run it through Micro-USB. Power consumption is not listed, so use the 5 V × 1.5 A = 7.5 W supply rating as the worst case: a 10000 mAh bank (about 30 Wh usable) lasts at least about 4 hours. On cable, the switch or router also needs power, ideally from a small UPS, or the camera records to its card but cannot be viewed.
Do I need a cloud subscription to record?
No. Recording to the on-board microSD card works without any subscription. If you want to record to your own NVR or server, check the protocols listed in the specification table (RTSP / ONVIF) or send us the name of your recording software and we will confirm compatibility before you order.
Is the Uho-S2E-M4 suitable for watching a shop counter and cash register?
Yes, indoors: the Uho-S2E-M4 records 4MP (2560×1440) through a 4.0 mm lens with a 79.0° horizontal view, and its 340° pan / -5° to 55° tilt lets you set one of 20 presets on the till and others on the door or aisle. IR covers up to 10 m when the lights are off, and the built-in mic records counter conversations. It is an indoor camera rated -10 °C to 55 °C with no IP rating listed, so do not mount it outside.
Should I choose the Uho-S2E-M4 or the Uho-S2E-M3-A?
Both are Wi-Fi cameras with an RJ45 Ethernet port; the main difference is resolution. The Uho-S2E-M4 records 4MP (2560×1440 at up to 25 fps), while the Uho-S2E-M3-A is a 3MP model. Pick the S2E-M4 when you need more detail on faces or banknotes at the counter; the 3MP version suits simpler room monitoring.
What power supply does the Uho-S2E-M4 need?
The Uho-S2E-M4 runs on DC 5 V / 1.5 A through a Micro USB connector. Any 5 V USB adapter rated at 1.5 A (7.5 W) or more, with a Micro USB cable long enough to reach the mounting spot, will power it. There is no PoE listed, so the RJ45 port carries data only.
Can the Uho-S2E-M4 be added to an NVR?
Yes: the Uho-S2E-M4 supports RTSP with authentication, API integration and ANR network storage, and its 10/100 RJ45 port gives a stable wired link to the recorder. Privacy masking is available only when it is used with an NVR. ONVIF is not listed in the spec, so confirm compatibility first if your NVR is another brand.
Ordering questions — samples, shipping, payment, lead time and genuine stock — are answered once on our FAQ page.
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