03U2D
Built for dependable imaging wherever size, mobility, and environmental protection matter. The Watec WAT-03U2D combines a compact cylindrical body, an integrated 3.6 mm lens, and IPX7 water-resistant construction in a precision camera made for wearable, mobile, and space-constrained installations.
Its 1/3-inch CMOS sensor delivers progressive-scan color video at selectable resolutions up to 1280 × 960, including 1280 × 720 HD output at up to 30 fps. For applications requiring smoother motion, the WAT-03U2D supports frame rates up to 60 fps at 640 × 480. USB 2.0 connectivity and USB bus power support straightforward integration without a separate camera power supply.
Low-light performance reaches 0.04 lx at F2.0 with AGC at 42 dB and the shutter off, extending to 0.01 lx with a 1/7.5-second shutter. A permanently attached 1.2-meter USB cable and an operating weight of approximately 85 g complete a durable, ready-to-integrate imaging solution. Compact, water-resistant, and made in Japan, the WAT-03U2D brings Watec color imaging performance to demanding indoor and outdoor applications.
The Watec WAT-03U2D is a compact USB 2.0 color camera designed with an IPX7 water-resistant enclosure. Its 1/3-inch CMOS image sensor provides 1305 × 977 effective pixels, progressive scanning, and selectable output sizes up to 1280 × 960.
An integrated M3620BC-12 lens provides a 3.6 mm focal length and F2.0 aperture. USB Video Class connectivity supports direct integration with computers and compatible smartphones or tablets, while USB bus power eliminates the need for a separate camera power supply.
Low-Light Imaging Performance
The WAT-03U2D achieves minimum illumination of 0.04 lx at F2.0 with automatic gain control at 42 dB and the shutter off. Sensitivity extends to 0.01 lx at F2.0 with automatic gain control at 42 dB and a 1/7.5-second shutter.
Automatic gain control operates from 0 to 42 dB, while manual gain control is adjustable from 0 to 72 dB in 1 dB steps. Exposure settings include fixed shutter speeds, electronic iris operation, and extended exposures from 1/15 second to 2 seconds.
Resolution and Frame Rate
Available output sizes are 1280 × 960, 1280 × 720, 640 × 480, and 320 × 240. The camera provides up to 30 fps with HD output and up to 60 fps with VGA output. MJPG and YUY2 video compression formats are available.
IPX7 Water-Resistant Construction
The external camera body complies with IPX7 under JIS C 0920 and IEC 60529. The IPX7 rating applies to water ingress and does not provide a dust-ingress or explosion-proof rating.
The USB Micro-B connector is outside the IPX7-protected area and requires appropriate waterproof treatment when exposure is possible. After seawater use, rinse the camera thoroughly with fresh water, wipe it clean, and dry it completely. Regular maintenance is recommended to preserve water-resistant performance.
USB Interface and System Integration
The WAT-03U2D uses a high-speed USB interface for video transmission and 5 V bus power. Power consumption is 0.75 W at 150 mA. The integrated cable is 1.2 meters long, with a maximum documented cable length of 3.0 meters.
With a compatible application, the camera can connect to a smartphone or tablet. Live video can be transmitted through a supported host-device or transmission system using Wi-Fi or cellular connectivity.
Imaging Controls
Camera Viewer provides access to documented controls including automatic and manual white balance, gain, gamma, backlight compensation, and sharpness. Fixed and electronic-iris exposure modes support adjustment for changing imaging conditions.
Lens and Mounting
The camera includes an M3620BC-12 miniature lens with a 3.6 mm focal length and F2.0 aperture. Optional M0620BC-12 and M0816BC-12 miniature lenses are available as made-to-order configurations.
A repositionable mounting bracket supports wall and ceiling installation. The mounting interface uses a standard 1/4″-20 tripod thread. The optional TS01A holder provides an additional installation method.
Operating Environment
The operating temperature range is -10°C to +50°C. Storage temperature is -30°C to +70°C. Operating and storage humidity must remain at or below 95% RH without condensation.
Downloads
Specifications
| Specification | WAT-03U2D |
|---|---|
| Camera Type | High-sensitivity USB 2.0 HD water-resistant color camera |
| Water Resistance | IPX7 |
| Image Sensor | 1/3-inch CMOS image sensor |
| Effective Pixels | 1,305 (H) x 977 (V) |
| Unit Cell Size | 3.75 micrometers (H) x 3.75 micrometers (V) |
| Imaging System | RGB primary-color Bayer arrangement mosaic filters on chip |
| Synchronizing System | Internal |
| Scanning System | Progressive |
| Output Resolutions | 1280 x 960, 1280 x 720, 640 x 480, 320 x 240 |
| Maximum Frame Rate | 30 fps (HD); 60 fps (VGA) |
| Video Compression | MJPG, YUY2 |
| Video Output | USB Video Class (UVC compatible) |
| Minimum Illumination | 0.04 lx at F2.0 (AGC ON = 42 dB, shutter OFF); 0.01 lx at F2.0 (AGC ON = 42 dB, shutter = 1/7.5 second) |
| Fixed Shutter | 1/30, 1/60, 1/120, 1/250, 1/500, 1/1000, 1/2000, 1/4000, 1/8000 second; 1/15, 1/7.5, 1/4, 1/2, 1, and 2 seconds |
| EI Exposure Range | 1/30 to 1/8000 second |
| Camera Viewer Exposure Range | 1/7.5 to 1/8000 second |
| White Balance | ATW, MWB |
| Automatic Gain Control | 0 to 42 dB |
| Manual Gain Control | 0 to 72 dB (108 steps) |
| Gamma | Y = USER (level adjustable) |
| Backlight Compensation | BLC |
| White-Blemish Correction | Supported |
| Sharpness | Level adjustable |
| Standard Lens | M3620BC-12 (f3.6, F2.0) |
| Optional Lenses | M0620BC-12 and M0816BC-12; made-to-order camera configuration |
| Interface | USB (high speed) |
| Power Supply | USB +5 V |
| Power Consumption | 0.75 W (150 mA) |
| Operating Temperature | -10 to +50 degrees C |
| Storage Temperature | -30 to +70 degrees C |
| Operating / Storage Humidity | 95% RH or less, without condensation |
| Cable Length | 1.2 m (3.0 m maximum) |
| Weight | Approximately 85 g |
| Minimum System Requirements | 800 MHz or faster CPU; 512 MB or more RAM; USB 2.0 port |
| Recommended System | Intel Core i-series CPU; 2 GB or more RAM; USB 2.0 port; 1920 x 1080 or better display resolution |
| Operation-Confirmed Operating Systems | Windows 7 (32/64-bit), Windows 8 (32/64-bit), Windows 8.1 (32/64-bit), Windows 10 (32/64-bit), Android 4.0 or newer, as listed in the supplied specification sheet |
FAQ
What is the WAT-03U2D?
The WAT-03U2D is a compact Watec USB 2.0 color camera with a 1/3-inch CMOS sensor, an integrated 3.6 mm lens, selectable output sizes up to 1280 × 960, and an IPX7 water-resistant enclosure.
What resolutions does the WAT-03U2D support?
Available output sizes are 1280 × 960, 1280 × 720, 640 × 480, and 320 × 240.
What is the maximum frame rate?
The WAT-03U2D supports up to 30 fps with HD output and up to 60 fps with VGA output.
How sensitive is the WAT-03U2D in low light?
Minimum illumination is 0.04 lx at F2.0 with AGC at 42 dB and the shutter off. It extends to 0.01 lx at F2.0 with AGC at 42 dB and a 1/7.5-second shutter.
What does the IPX7 rating cover?
IPX7 applies to the external camera body under JIS C 0920 and IEC 60529. The USB Micro-B connector is outside the protected area and requires separate waterproof treatment when exposure is possible.
Does the WAT-03U2D have a dust-ingress rating?
No dust-ingress rating is specified for the WAT-03U2D. IPX7 is a water-ingress rating and does not represent dust protection.
What lens is included with the WAT-03U2D?
The standard lens is the M3620BC-12 miniature lens with a 3.6 mm focal length and F2.0 aperture.
How is the WAT-03U2D powered?
The camera operates from 5 V supplied through the USB connection. Power consumption is 0.75 W at 150 mA.
Can the WAT-03U2D connect to a smartphone or tablet?
Yes. The WAT-03U2D can connect to a smartphone or tablet using a compatible application. Supported host-device or transmission systems can provide live-video transmission through Wi-Fi or cellular connectivity.
What operating systems have confirmed operation?
Operation has been confirmed with Windows 7, Windows 8, Windows 8.1, and Windows 10 in 32-bit and 64-bit versions, and with Android 4.0 or newer.