IP Cameras › IPC-B124-APF28(40)K
UniarchMini Fixed Bullet
4MP Mini Fixed IR Bullet
IPC-B124-APF28(40)K
4MP fixed IR bullet network camera — up to 30m smart infrared night vision, PoE single-cable install, built-in mic, IP67 outdoor body.
4 MP · 20fps @2560×1440Ultra 265 · low bandwidthSmart IR · up to 30mPoE / DC12V · dual powerIP67 · outdoorMic · built-in audio
Choose your lens — two models on this page
AF28 (2.8 mm, 97° view) covers a wide area near the camera — doorways, small rooms, shop counters. AF40 (4.0 mm, 79° view) trades width for reach — corridors, driveways, fence lines. Highlighted rows in the spec table below show every difference.
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The Uniarch IPC-B124-APF28(40)K is a 4MP mini fixed bullet network camera. It provides up to 30 m of smart infrared night vision, MicroSD edge storage, powers over a single PoE cable, and carries an IP67 outdoor rating with a −30 °C to 60 °C working range. It is offered with two fixed lenses: 2.8 mm (AF28, wider view) or 4.0 mm (AF40, longer reach).
Is this the right camera for you?
Plain-language guide for buyers and installers — based only on what this camera actually does.
Shops & storefrontsSee who enters, and the built-in mic records what is said at the counter. AF28 covers the whole shop floor from a corner.
Home gates & yardsSmart IR turns on at night for discreet black-and-white night vision — the camera watches without lighting up the scene.
Warehouse & site perimetersIP67 body and −30 to 60 °C rating survive rain, dust and heat. AF40 watches long fence lines.
Sites needing local backupA built-in MicroSD slot keeps footage on the camera itself — useful as a backup even where an NVR is also recording.
Small offices & receptionUltra 265 compression keeps recordings small — more days of footage on the same NVR disk.
Kiosks & fuel stationsOne PoE cable does power + video — no electrician needed at the pole, quick to install and move.
Not the right pick if you need…
- Full-color night vision — this is IR-only, night video is black & white, not color
- Two-way talk — it has a mic but no speaker
- Wi-Fi — this is a wired RJ45 camera
- Zoom — the lens is fixed (2.8 or 4.0 mm, chosen at purchase)
- Alarm in/out wiring for sirens or sensors
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Key Features
Complete list from the official datasheet.
High quality image with 4 MP, 1/3.0" CMOS sensor
4 MP (2560 × 1440)@20 fps; 3 MP (2304 × 1296)@20 fps; 1080P (1920 × 1080)@30/25 fps
Ultra 265, H.265, H.264
2D/3D DNR (digital noise reduction)
ROI (region of interest) ensures image quality in areas of interest with low bandwidth
Smart IR, up to 30 m (98.4 ft.) IR distance
MicroSD, up to 512 GB
3-axis
Built-in mic
Wide temperature range: −30 °C to 60 °C (−22 °F to 140 °F)
DC 12 V, PoE (IEEE 802.3af) power supply
IP67
Night Vision: Smart IR
Invisible infrared night vision — this model has no warm-light module.
IR MODE
Invisible infrared — discreet black & white night vision
Smart IR up to 30 m (98.4 ft.) at 850 nm. The camera watches without lighting up the scene — nothing shows it is recording. This model has a single IR illuminator only, no warm-light module.
How far can it see? (DORI)
DORI (EN 62676-4) is the industry standard for what a camera can do at distance. Switch the lens buttons above to compare.
Detectsomething is there
63 m206.7 ft
Observewhat is happening
25.2 m82.7 ft
Recognizesomeone you know
12.6 m41.3 ft
Identifya stranger's face
6.3 m20.7 ft
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 | AF28 · 97.0° | AF40 · 79.0° |
|---|---|---|
| 5 m16 ft | 11.3 m37.1 ft | 8.2 m27.0 ft |
| 10 m33 ft | 22.6 m74.2 ft | 16.5 m54.1 ft |
| 15 m49 ft | 33.9 m111 ft | 24.7 m81.1 ft |
| 20 m66 ft | 45.2 m148 ft | 33.0 m108 ft |
| 30 m98 ft | 67.8 m222 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 it goes and how to install it
Written for the Uniarch IPC-B124-APF28(40)K from its own specifications: 4 MP (2560 × 1440), 2.8 mm or 4.0 mm fixed lens, 30 m Smart IR, Ultra motion detection, MicroSD slot, PoE or 12 V DC.
Who it is for
- Shops and offices that need detail — 4 MP gives about 1.3× the horizontal pixels of the 2 MP IPC-B122: with the 2.8 mm lens a face is identifiable to 6.3 m instead of 4.5 m, useful for counters, entrances and cash areas.
- Sites without an NVR, or needing backup — The MicroSD slot takes cards up to 512 GB and keeps recording on the camera even if the NVR or network goes down.
- Homes and residential gates — Invisible 850 nm Smart IR up to 30 m for discreet night video, plus Ultra motion detection and a tampering alarm so someone covering or turning the camera raises an event.
- Yards, parking and perimeters — IP67 and −30 °C to 60 °C for outdoor poles and walls; the 4.0 mm version detects movement to 90.0 m and recognizes a known person to 18.0 m in daylight.
Where and how to install
- Height and angle — Mount at about 2.5–3.5 m with a shallow downward tilt. Lower is easy to tamper with; much higher shows the top of heads instead of faces.
- Faces need a choke point — Aim at a door, gate or corridor where people walk toward the camera, within the identify distance: 6.3 m with the 2.8 mm lens, 9.0 m with the 4.0 mm lens.
- Keep IR from bouncing back — Do not mount tight under eaves or beside a wall, gutter or pole that sits inside the picture: the IR reflects back and washes out the night image. Keep branches and cobwebs away from the lens; they also cause false motion events.
- Weather, cable joint and surge — The body is IP67, but the network and 12 V tail is not: put it in the TR-JB05-A-IN junction box and seal the entry with the TR-A01-IN gland. Surge protection is 4 kV; on poles or long outdoor runs add a surge protector and earthing.
- Brackets — Pole: TR-UP06-B-IN, or TR-UP06-C-IN-V2 together with the junction box; outside building corners: TR-UC08-C-V2. The 3-axis mount (tilt 0–90°, rotate 0–360°) keeps the horizon level on a sloped wall.
2.8 mm or 4.0 mm: what you actually see
Same 4 MP sensor, different lens. The 2.8 mm covers about 11.3 m of width at 5 m, the 4.0 mm about 8.2 m. The 4.0 mm reaches about 1.4× farther (identify 9.0 m against 6.3 m) and puts about 155 pixels on each meter at 10 m against about 113 for the 2.8 mm.
| APF28K · 2.8 mm | APF40K · 4.0 mm | |
|---|---|---|
| Horizontal view angle | 97.0° | 79.0° |
| Width covered at 5 m | 11.3 m | 8.2 m |
| Width covered at 10 m | 22.6 m | 16.5 m |
| Pixels per meter at 10 m | 113 px/m | 155 px/m |
| Identify a stranger's face up to | 6.3 m | 9.0 m |
| Recognize someone you know up to | 12.6 m | 18.0 m |
| Observe what is happening up to | 25.2 m | 36.0 m |
| Detect that something is there up to | 63.0 m | 90.0 m |
- Pick 2.8 mm for a shop floor, a yard or a parking row seen from close: from 5 m it covers 11.3 m of width and still identifies faces to 6.3 m.
- Pick 4.0 mm for a gate or driveway 7–9 m away or a long corridor: faces stay identifiable to 9.0 m.
- At night the IR reaches 30 m, so the 63.0 m and 90.0 m detect distances apply at night only where there is other lighting.
Widths are calculated from the horizontal view angle (width = 2 × distance × tan(angle ÷ 2)); pixels per meter = horizontal pixels ÷ width at 10 m; face distances are the manufacturer's DORI figures.
Full Specifications
Complete official specifications from the manufacturer's datasheet (technical values in English).
Highlighted rows differ between the two models:AF28 = 2.8 mmAF40 = 4.0 mm
Camera
| Max Resolution | 4 MP |
| Sensor | 1/3.0" CMOS |
| Min. Illumination | Color: 0.02 Lux (F2.1, AGC ON), 0 Lux with IR on |
| Day/Night | IR-cut filter with auto switch (ICR) |
| Shutter | Auto/Manual, 1 to 1/100000 s |
| Adjustment Angle | Pan: 0° to 360°, Tilt: 0° to 90°, Rotate: 0° to 360° |
| S/N | > 52 dB |
| WDR | DWDR |
Lens
| Focal Length | AF28 · 2.8 mmAF40 · 4.0 mm |
| Iris | F2.1 |
| Iris Type | Fixed |
| Field of View (H) | AF28 · 97.0°AF40 · 79.0° |
| Field of View (V) | AF28 · 52.2°AF40 · 42.3° |
| Field of View (D) | AF28 · 107.5°AF40 · 85.1° |
DORI
| DORI Distance (Lens) | AF28 · 2.8 mmAF40 · 4 mm |
| DORI Distance (Detect) | AF28 · 63.0 m (206.7 ft.)AF40 · 90.0 m (295.3 ft.) |
| DORI Distance (Observe) | AF28 · 25.2 m (82.7 ft.)AF40 · 36.0 m (118.1 ft.) |
| DORI Distance (Recognize) | AF28 · 12.6 m (41.3 ft.)AF40 · 18.0 m (59.1 ft.) |
| DORI Distance (Identify) | AF28 · 6.3 m (20.7 ft.)AF40 · 9.0 m (29.5 ft.) |
Illuminator
| Supplemental Light | IR |
| Illumination Distance (IR) | Up to 30 m (98 ft.) |
| Wavelength | 850 nm |
| IR On/Off Control | Auto/Manual |
Video
| Video Compression | Ultra 265, H.265, H.264 |
| H.264 Code Profile | Baseline profile, Main profile, High profile |
| Frame Rate | Main Stream: 4 MP (2560×1440), max. 20 fps; 3 MP (2304×1296), max. 20 fps; 1080P (1920×1080), max. 30/25 fps; 720P (1280×720), max. 30/25 fps · Sub Stream: D1 (720×576), max. 30 fps; 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 4 OSDs |
| Privacy Mask | Up to 4 areas |
| 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 | Support |
| BLC | Support |
| Defog | Digital defog |
Events
| Basic Detection | Motion detection, Audio detection, Tampering alarm, Ultra motion detection |
| General Function | Watermark, IP address filtering, Access policy, ARP protection, RTSP authentication, User authentication, HTTP authentication |
Audio
| Audio Compression | G.711U, G.711A |
| Audio Bitrate | 64 Kbps |
| Two-way Audio | N/A |
| Suppression | Support |
| Sampling Rate | 8 kHz |
Storage
| Edge Storage | MicroSD, up to 512 GB |
| Network Storage | ANR |
Network
| Protocols | IPv4, IGMP, ICMP, TCP, UDP, DHCP, RTP, RTSP, RTCP, RTMP, DNS, DDNS, NTP, UPnP, HTTP, HTTPS, QoS |
| Compatible Integration | ONVIF (Profile S, Profile G, Profile T), API |
| User/Host | Up to 32 users. 2 user levels: administrator and common user |
| Client | APP, Uniarch client |
| Web Browser | Plug-in required live view: IE 10+, Chrome 45+, Firefox 52+, Edge 79+, Plug-in free live view: Chrome 57+, Firefox 58+, Edge 16+ |
Interface
| Audio I/O | N/A |
| Alarm I/O | N/A |
| Built-in Mic | Support |
| Built-in Speaker | N/A |
| WIFI | N/A |
| Network | 1 × RJ45 10 M/100 M Base-TX Ethernet |
| Video Output | N/A |
Certification
| Protection | IP67 (IEC 60529) |
| EMC | CE-EMC (EN 55032, EN 61000-3-3, EN IEC 61000-3-2, EN 55035); FCC (FCC 47 CFR part15 B) |
| Safety | CE LVD (EN 62368-1); CB (IEC 62368-1) |
| Environment | CE-RoHS (2011/65/EU; (EU)2015/863); WEEE (2012/19/EU) |
General
| Power | DC 12 V±25%, PoE (IEEE 802.3af) |
| Power Consumption | Max. 3.4 W |
| Power Interface | Ø5.5 mm coaxial power plug |
| Dimensions | 160 mm × 62 mm × 65 mm (6.3" × 2.4" × 2.6") (L × W × H) |
| Weight | 0.21 kg (0.46 lb.) |
| Material | Graphene + Plastic |
| Working Environment | -30 °C to 60 °C (-22 °F to 140 °F), Humidity: ≤ 95% RH (non-condensing) |
| Storage Environment | -30 °C to 60 °C (-22 °F to 140 °F), Humidity: ≤ 95% RH (non-condensing) |
| Surge Protection | 4 KV |
| Reset Button | N/A |
| Web Client Language | 1 Language: English |
Dimensions
Engineering drawing reproduced 1:1 from the official datasheet.
unit: mm (in.)
| Dimensions | 160 × 62 × 65 mm (6.3" × 2.4" × 2.6") |
| Weight | 0.21 kg (0.46 lb.) |
| Material | Graphene + Plastic |
| Mount adjustment | Pan 0–360° · Tilt 0–90° · Rotate 0–360° |
Optional Mounting Accessories
Order together with the camera to save shipping.
TR-JB05-A-INSmall bullet junction box (rear wiring, square)
TR-UP06-B-INBullet pole mounting bracket
TR-A01-INNPT 3/4" waterproof cable gland
TR-UP06-C-IN-V2Pole bracket for bullet junction box
TR-UC08-C-V2Bullet & dome corner mounting bracket
4MP IR Bullet Camera FAQ — IPC-B124-APF28(40)K
How far does the IPC-B124 see at night?
Smart IR illuminates up to 30 m (98 ft) at 850 nm — invisible to the eye, so the scene stays dark while the camera records in black and white at 0 Lux. Color holds down to 0.02 Lux (F2.1, AGC on), and the IR-cut filter switches automatically between day and night.
What does 4MP give me over a 2MP camera in practice?
Reach. DORI figures for this 4MP unit: with the 2.8 mm lens, detection at 63.0 m and identification at 6.3 m; with the 4.0 mm lens, detection at 90.0 m and identification at 9.0 m. The main stream delivers 2560x1440 at up to 20 fps, so faces and plates survive digital zoom better.
Which lens should I order, 2.8 mm or 4.0 mm?
The 2.8 mm covers 97.0 degrees horizontally — one camera watches a whole yard, shopfront or gate at close range. The 4.0 mm narrows to 79.0 degrees but pushes DORI detection from 63.0 m to 90.0 m, which suits perimeter fences, alleys and parking rows where reach beats width.
Is it outdoor-rated and how do I power it?
Yes — IP67 housing against dust and rain, with a 3-axis bracket (pan 0–360, tilt 0–90, rotate 0–360 degrees) for wall or pole mounting. It is powered over PoE, so one Ethernet cable from a PoE switch delivers both power and video, which simplifies multi-camera surveillance installs.
What detection features does it include?
Motion detection, ultra motion detection, audio detection through the built-in mic, and a tampering alarm that flags a covered or repositioned camera. Video runs Ultra 265, H.265 or H.264 with U-code, dual streams, 128–6144 Kbps bitrate, plus 4 privacy masks and 8 ROI areas. Two-way audio is not available.
Will the IPC-B124-APF28(40)K work with a Hikvision, Dahua or other non-Uniview NVR?
Usually yes for live view and recording: it supports ONVIF Profile S, G and T plus RTSP. The NVR must accept 4 MP (2560 × 1440) input; older 1080P-only recorders may refuse the main stream. Ultra motion detection and the tampering alarm are fully supported on Uniarch and Uniview NVRs and may be limited on other brands, so tell us your NVR model and we will confirm before you order.
The IPC-B124-APF28(40)K records 4 MP at 20 fps. Is that enough?
For security recording, yes: 20 fps is smooth for people walking, and many installers record at 10–15 fps anyway to save disk. What 4 MP gives is detail, not motion smoothness. If you need fast motion such as vehicles at speed to look smoother, set the main stream to 1080P, which runs at up to 30 fps, at the cost of detail.
How much storage does the IPC-B124-APF28(40)K need on MicroSD or an NVR?
At the maximum 6144 Kbps with continuous recording it writes about 66.4 GB per day: about 7.7 days on the maximum 512 GB card, and about 2 TB of NVR disk per camera for 30 days. At 4096 Kbps the 512 GB card lasts about 11.6 days; Ultra 265 and motion-only recording reduce the space needed further.
IPC-B124-APF28(40)K or IPC-B134-AF28(40)-DL-ECO: which 4 MP bullet fits my job?
Both have the same DORI distances (identify 6.3 m with 2.8 mm, 9.0 m with 4.0 mm) and 30 m IR. Choose the B124 for a MicroSD slot, a 12 V DC option and discreet IR-only nights. Choose the B134-DL-ECO if you want color at night from its 15 m warm light and Human body detection 2.0; it is PoE-only and has no card slot.
How many IPC-B124-APF28(40)K cameras can one PoE switch run?
Power is rarely the limit: each camera draws at most 3.4 W on IEEE 802.3af, so 8 cameras need about 27 W from the switch's PoE budget. The camera port is 10/100 Mbps, which is enough; at the 6144 Kbps maximum, 16 cameras add up to about 98 Mbps, so use a gigabit uplink to the NVR. Keep each copper run within 100 m.
Ordering questions — samples, shipping, payment, lead time and genuine stock — are answered once on our FAQ page.
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