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Uho-S2-M3-A
3MP Indoor Pan & Tilt Wi-Fi Camera Uho-S2-M3-A — view 1
3MP Indoor Pan & Tilt Wi-Fi Camera Uho-S2-M3-A — view 2
3MP Indoor Pan & Tilt Wi-Fi Camera Uho-S2-M3-A — view 3
UniarchIndoor Pan & Tilt Wi-Fi
3MP Indoor Pan & Tilt Wi-Fi

Uho-S2-M3-A

3MP indoor Wi-Fi camera with a real motorized pan-tilt head — 338° pan, -5° to 55° tilt, Auto Tracking and two-way audio. No network cable, just power and connect over 2.4GHz Wi-Fi.

3 MP · 2304×1296@25fpsWi-Fi · 2.4GHz built-in antennaAuto Tracking · follows moving subjects2-Way Audio · mic + speakerHuman/Vehicle/Pet · + crying detectionMicroSD · up to 512GB
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Lead time · In stock: at your forwarder’s China warehouse 3 days after payment · Not in stock: 7–15 working days · Then air 5–10 days / sea 25–45 days to your port

Terms · Sample orders welcome · Quotation / PI fixes models, prices, Incoterms (EXW or FOB, each quoted separately), lead time and T/T payment · Defective units: free spare units agreed per order (quantity depends on order size) and written into the quotation · Warranty: up to 5 years on Zhongxin Shutong industrial switches, manufacturer warranty on other brands · Full terms, warranty & RMA

Need the PDF datasheet? Get it on WhatsApp →
Compliance:CEFCCRoHSWEEE
Corporate orders are registered with the manufacturer under your company name — genuine supply you can verify at the source.
3 MP2304×1296 recording
Wi-Fi2.4GHz, no cable needed
338°Motorized pan range
AutoAuto Tracking

The Uniarch Uho-S2-M3-A is a 3MP indoor Wi-Fi camera with a real motorized pan-tilt head, not just a fixed mount angle. It pans 338° 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 humans, vehicles, pets and even crying, all 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 & pet monitoring, hands-freeAuto Tracking follows your baby or pet around the room on its own, and Crying detection alerts you the moment your baby cries.
Whole-room coverage from one cornerMotorized 338° 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 and vehicle detection cuts down false alerts versus plain motion detection, and it runs over Wi-Fi so there's no cable to run to the front desk.
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
  • A wired network fallback — this model connects over Wi-Fi only, there is no Ethernet port
  • 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

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Key Features

Complete list from the official datasheet.

High quality image with 3MP, 1/3" CMOS sensor
3MP (2304×1296)@25/20fps; 2MP (1920×1080)@30/25fps; 720P (1280×720)@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 (32.8 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.

Distance67.3°
5 m16 ft6.7 m21.8 ft
10 m33 ft13.3 m43.7 ft
15 m49 ft20.0 m65.5 ft
20 m66 ft26.6 m87.4 ft
30 m98 ft39.9 m131 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 set it up

Written for the Uho-S2-M3-A from its official datasheet: 3 MP indoor pan-tilt camera, fixed 4.0 mm lens (67.3°), 338° pan / -5° to 55° tilt with auto tracking, 10 m IR, crying and high-decibel detection, 2.4 GHz Wi-Fi only, 5 V Micro-USB power.

Who it is for

  • Parents of babies and toddlers — Crying detection sends an alert, auto tracking follows a toddler who leaves the play mat, and the 850 nm IR watches the cot in the dark without a visible lamp.
  • Families looking in on an elderly relative — High-decibel detection flags a shout or a crash, 20 presets jump to the bed, chair and door, and two-way audio lets you talk without them touching a phone.
  • Pet owners — Ultra motion detection separates pets from people, so you can get alerts for the dog or cat while away, and talk to it through the speaker.
  • Small rooms on a tight budget — A 67.3° lens on a 338° motor covers a bedroom, nursery or small office from one corner with a single USB plug and no network cable.

Where and how to place it

  • Up high, or upside down on the ceiling — Tilt goes only 5° below level and 55° above, so on a table it looks across or up, not down. On a high shelf or wardrobe it sees the room; mounted upside down on the ceiling with the 180° image flip on, the 55° side points down at the floor and cot.
  • Put the 22° blind gap on the wall — Pan is 0–338°, so 22° of the circle cannot be reached. In a corner or against a wall that gap is behind the camera anyway; in the middle of a room, point it at the least important side.
  • Keep the USB cable out of reach — Power is DC 5 V / 1.5 A on Micro-USB, max. 7.5 W. Near a cot or where pets chew, run the cable along the wall or inside a cable channel, and keep the adapter where a child cannot pull it.
  • 2.4 GHz Wi-Fi only, no network port — It uses 802.11b/g/n on 2.4 GHz with a 20 MHz channel and has no Ethernet port, so the room must have a usable 2.4 GHz signal. Check it with a phone at the chosen spot; if it is weak, move the router or add a mesh point rather than the camera.
  • Indoors, away from heat and steam — It has no IP rating and works from -10 °C to 50 °C. Do not place it in a bathroom, over a stove, or on a sunny windowsill where direct sun heats the body; BLC helps when a bright window or doorway is behind the subject.

What the 4.0 mm lens sees in a room

The 67.3° lens is narrower than many fixed room cameras: about 4.0 m of wall at 3 m away and 6.7 m at 5 m. The motor makes up for it by turning the picture through 338°, and auto tracking keeps a moving person or pet inside that window.

Uho-S2-M3-A · 4.0 mm
Horizontal view angle67.3°
Width covered at 3 m4.0 m
Width covered at 5 m6.7 m
Pixels per meter at 5 m≈ 346 px/m
IR night vision10 m · 850 nm
Pan range0°–338°
Tilt range-5° to 55°
Pan / tilt speed17–50°/s
Presets20
  • In a room up to about 5 m deep, one corner position plus presets covers everything; at 5 m there are still about 346 pixels per meter, enough to recognize a family member.
  • The IR reaches 10 m, more than most rooms need; a long open-plan space or hall is better served by the 4MP Uho-S2-M4, whose lens is wider at 79.0°.

Widths are calculated from the 67.3° horizontal view angle (width = 2 × distance × tan(angle ÷ 2)); pixels per meter = 2304 horizontal pixels ÷ width. The datasheet gives no DORI distances for this model. IR, pan/tilt and preset figures are from the official datasheet; the Uho-S2-M4 angle is from its own datasheet.

Full Specifications

Complete official specifications from the manufacturer's datasheet (technical values in English).

Camera

Max Resolution3 MP
Sensor1/3.0" CMOS
Min. IlluminationColour: 0.02 lux (F2.0, AGC ON), 0 lux with IR on
Day/NightIR-cut filter with auto switch (ICR)
ShutterAuto/Manual, 1/4 to 1/100000 s
S/N> 52 dB
WDRDWDR
Case TypePT

Lens

Focal Length4.0 mm
IrisF2.0
Field of View (H)67.3°
Field of View (V)37.2°
Field of View (D)77.8°
Lens TypeFixed
Iris TypeFixed

Illuminator

Supplemental LightIR
Illumination Distance (IR)10 m (32.8 ft.)
Wavelength850 nm
IR On/Off ControlAuto/Manual

Video

Video CompressionUltra 265, H.265, H.264
Frame RateMain Stream: 3MP (2304×1296), max. 25 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 Rate128 Kbps to 2048 Kbps
U-codeSupport
OSDUp to 2 OSDs
Privacy MaskSupport (only NVR)
ROISupport
Video StreamDual streams

Image

White BalanceAuto, Outdoor, Fine tune, Sodium lamp, Locked, Auto2
Digital Noise Reduction2D/3D DNR
Smart IRSupport
FlipNormal, Flip vertical, Flip horizontal, 180°
DewarpingN/A
HLCN/A
BLCSupport
DefogDigital defog

Events

Basic DetectionMotion detection, Ultra motion detection (human/vehicle/pet), Crying detection, High-Decibel detection
General FunctionIP address filtering, Access policy, ARP protection, RTSP authentication, User authentication, HTTP authentication

Intelligent

Auto TrackingSupport

Audio

Audio CompressionG.711U, G.711A
Audio Bitrate64 Kbps
Two-way AudioSupport
SuppressionSupport
Sampling Rate8 kHz

Storage

Edge StorageMicroSD, up to 512 GB
Network StorageANR

Network

Wi-Fi2.4G Wi-Fi (IEEE802.11b/g/n), built-in antenna
ProtocolsIPv4, TCP, UDP, DHCP, RTSP, DNS, DDNS, NTP, HTTP
Compatible IntegrationAPI, SDK
ClientAPP, Uniarch client
Web BrowserPlug-in required live view: IE 10+, Chrome 45+, Firefox 52+, Edge 79+

Wi-Fi

Wireless StandardsIEEE802.11b/g/n
Frequency Range2.4 GHz to 2.4835 GHz
Channel Bandwidth20 MHz Support
Modulation Mode802.11b: CCK, QPSK, BPSK; 802.11g/n: OFDM/HT
Wi-Fi Security64/128-bit WEP, WPA-PSK/WPA2-PSK
Transmit Power802.11b: 17±1.5 dBm@11 Mbps; 802.11g: 14±1.5 dBm@54 Mbps; 802.11n: 12.5±1.5 dBm@150 Mbps
Receive Sensitivity802.11b: -90 dBm@11 Mbps (Typical); 802.11g: -75 dBm@54 Mbps (Typical); 802.11n: -74 dBm@150 Mbps (Typical)
Transmission Rate802.11b: 11 Mbps; 802.11g: 54 Mbps; 802.11n: up to 150 Mbps

PTZ

Pan Range0° ~ 338°
Pan Speed17°/s ~ 50°/s, Preset speed: 50°/s
Tilt Range-5° ~ 55°
Tilt Speed17°/s ~ 50°/s, Preset speed: 50°/s
Number of Presets20

Interface

Audio I/ON/A
Alarm I/ON/A
Built-in MicSupport
Built-in SpeakerSupport
WIFISupport

Certification

EMCCE-EMC (EN 55032, EN 61000-3-3, EN IEC 61000-3-2, EN 55035); FCC (FCC 47 CFR part15 B)
RFFCC ID (FCC CFR 47 part15 C); CE RED (EN 301 489-1, EN 301 489-17, EN 300 328, EN 62311)
SafetyCE LVD (EN 62368-1)
EnvironmentCE-RoHS (2011/65/EU; (EU) 2015/863); WEEE (2012/19/EU)

General

Power ConsumptionMax. 7.5 W
PowerDC 5 V/1.5 A, Micro USB interface
LED Indicator1, red/blue
DimensionsΦ80 mm × 120 mm (Ø3.1" × 4.8")
Weight0.18 kg (0.40 lb.)
Working Environment-10 °C to 50 °C (14 °F to 122 °F), Humidity: ≤ 95% RH (non-condensing)
Storage Environment-10 °C to 50 °C (14 °F to 122 °F), Humidity: ≤ 95% RH (non-condensing)
Reset ButtonSupport

Other

Software VersionDIPC-B6117

Dimensions

Engineering drawing reproduced 1:1 from the official datasheet.

Uho-S2-M3-A dimensions drawing in mm
unit: mm (in.)
DimensionsΦ80 × 120 mm (Ø3.1" × 4.8")
Weight0.18 kg (0.40 lb.)
Pan range0° – 338°
Tilt range-5° – 55°

3MP Indoor Wi-Fi Pan-Tilt Camera FAQ — Uho-S2-M3-A

How much of a room can the Uho-S2-M3-A cover?
The motorized pan-tilt turns 338° horizontally and tilts from -5° to 55°, on top of a 4.0 mm lens with 67.3° horizontal view. With auto tracking enabled, one camera follows a person around a living room, shop counter area or small office instead of staring at one corner.
Can it tell people and pets apart, and detect a baby crying?
Yes. Ultra motion detection classifies human, vehicle and pet targets so alerts are relevant, and crying detection plus high-decibel detection listen for a baby or loud noises. That makes it practical both as a security camera and as a home or nursery monitor.
How long can it record on a MicroSD card?
It accepts a MicroSD card up to 512 GB. At the maximum 2048 Kbps bit rate that is roughly three weeks of continuous video; lower bit rates or U-code smart encoding stretch it much further. ANR support re-syncs card footage to a recorder after a network outage.
How does it perform at night indoors?
Smart IR at 850 nm reaches 10 m (32.8 ft) — enough for typical room distances — and the IR-cut filter switches automatically between day and night. Minimum color illumination is 0.02 lux (F2.0, AGC on) and video drops to 0 lux in IR mode.
Can I talk to my family or staff through it?
Yes, two-way audio is supported with G.711U/G.711A compression at 64 Kbps and 8 kHz sampling, so conversations are clear at room distance. Combined with 3MP (2304×1296) video at up to 25 fps, you see and speak in near real time.
Will the Uho-S2-M3-A connect to my dual-band or WPA3 router, and does it need to be in the same room?
It joins only the 2.4 GHz band (802.11b/g/n, 20 MHz channel), and the datasheet lists WEP and WPA-PSK/WPA2-PSK security, not WPA3. If your router merges both bands under one name, make sure 2.4 GHz is enabled and use WPA2 or WPA2/WPA3 mixed mode while pairing. It does not need to be in the router's room, but every wall in between weakens the signal, so check the spot with a phone first. There is no network port on this model; the Uho-S2E-M3-A adds one if Wi-Fi is not reliable.
Can the Uho-S2-M3-A watch my yard through a window at night?
In daylight yes, at night usually not well: the 850 nm IR bounces off the glass and fills the picture with a white haze or the camera's own reflection. If you must, set IR to manual off (Auto/Manual control is listed), rely on an outdoor light, and keep the room dark behind the camera. It is also an indoor-only camera rated -10 °C to 50 °C, so a hot sunny windowsill is not a good home; for outside views, an outdoor Uho model is the right tool.
How do I keep the Uho-S2-M3-A's video private and stop strangers getting in?
Set a strong admin password at first setup and share the camera to family from the owner's app account rather than giving the password out. The datasheet lists user, HTTP and RTSP authentication, IP address filtering, access policy and ARP protection, and the Wi-Fi link uses WPA2-PSK when your router does. On-screen privacy masking works only with an NVR, so in an app-only setup the practical way to keep a bedroom or bathroom door out of view is to aim the presets away from it.
Can the Uho-S2-M3-A alert me if an elderly parent falls or shouts for help?
It can alert you to a loud sound: high-decibel detection is listed, so a shout or something crashing to the floor can trigger an app notification, and you can then look and answer through the two-way audio. It has no fall-detection analytics, and it is not a medical alarm, so treat it as a way to check in, not as an emergency system. Set presets on the bed, favorite chair and front door, and switch on auto tracking so the camera follows them around the room.
Can I keep the Uho-S2-M3-A running during a power cut with a USB power bank?
Yes, it runs on DC 5 V / 1.5 A through Micro-USB, so a power bank that can deliver 1.5 A will power it; it has no battery of its own. At the maximum 7.5 W, a 10000 mAh bank (about 37 Wh at 3.7 V, roughly 30 Wh usable after conversion losses) lasts about 4 hours; real draw is often lower when IR and the motor are idle. Recording to the microSD card continues on the power bank even if the router is off, but remote viewing and alerts need the router powered too.
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-S2-M3-A suitable for a small shop, office or reception desk?
Yes, for indoor spaces. It pans 338° and tilts -5° to 55°, stores 20 presets and auto-tracks moving subjects, so one camera can follow people across a shop floor or office. It is rated for indoor conditions only (-10 °C to 50 °C, no IP rating listed) and needs a nearby outlet for its Micro USB 5 V/1.5 A power supply.
What power supply does the Uho-S2-M3-A need, and will a phone charger work?
It needs DC 5 V/1.5 A through a Micro USB connector, and its maximum consumption is 7.5 W (5 V × 1.5 A). A 5 V/1 A charger delivers only 5 W, below that 7.5 W maximum, so use an adapter rated at least 5 V/1.5 A. Note that the plug is Micro USB, not USB-C.
What is the difference between the Uho-S2-M3-A and the Uho-S2E-M3-A?
Both are 3MP indoor Wi-Fi cameras, but the Uho-S2E-M3-A adds an RJ45 Ethernet port, while the Uho-S2-M3-A has no Ethernet port in its interface list and connects by 2.4 GHz Wi-Fi only. Choose the S2E-M3-A if the Wi-Fi signal at the mounting point is weak or you want a cabled connection; choose the S2-M3-A where good 2.4 GHz Wi-Fi is available.
Can the Uho-S2-M3-A connect to an NVR or be viewed on a computer?
Yes. Besides the app it supports the Uniarch client and web-browser live view with a plug-in (IE 10+, Chrome 45+, Firefox 52+, Edge 79+). The spec lists RTSP, API/SDK integration and ANR network storage, and privacy masks work only through an NVR; ONVIF is not listed, so check third-party NVR compatibility first. It joins 2.4 GHz Wi-Fi only (802.11b/g/n, WPA-PSK/WPA2-PSK).

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