DMS604 is a compact 905 nm industrial dToF sensor for 50 Hz long-range measurement: up to 35 m outdoors at 100 klux and 58 m indoors under the datasheet's stated reflectivity conditions.
Key Highlights
DMS604 is a compact industrial direct Time-of-Flight sensor for long-range point measurement. Its integrated dToF SoC, SPAD receiver, 905 nm VCSEL emitter, optics and onboard processing deliver calculated distance data through a UART interface at up to 50 frames per second.
The published distance range reaches 58 m indoors and 35 m outdoors under 100 klux ambient light. Both figures are specified with targets from 18% to 88% reflectivity. The narrow ≤1.3° field of view is suited to directional ranging where the system needs to isolate a compact measurement area.
A single 5 V supply and four-pin connection simplify host integration. The 40 × 10 × 7.7 mm module is specified for operation from -20°C to 85°C. Final range and accuracy still depend on target reflectivity, ambient light, mechanical alignment, cover-window design and the complete system configuration.
DMS604 is specified for up to 35 m ranging outdoors at 100 klux while maintaining a 50 fps output rate, using targets with 18-88% reflectivity.
The proprietary dToF SoC combines SPAD detection, TDC, DSP and histogram processing with a super-resolution algorithm. The performance table publishes accuracy as <±30 mm below 3 m and <±1% at 3 m or greater.
The module requires 5 V, ground, UART_TX and UART_RX. An external MCU or SoC can start or stop streaming and read the calculated distance result through the documented UART command format.
The DMS604 specification identifies the following application categories. Confirm target, optical, environmental and safety performance in the final assembly.
Values below are reproduced from DMS604 Product Specification Version 1.0. Distance limits are conditional test results, not unconditional detection guarantees.
| Parameter | Published Condition | Typical Value | Unit |
|---|---|---|---|
| Indoor Distance Range | 18-88% target reflectivity | 58 | m |
| Outdoor Distance Range | 100 klux, 18-88% target reflectivity | 35 | m |
| Accuracy Below 3 m | Distance <3 m | <±30 | mm |
| Accuracy at 3 m or Greater | Distance ≥3 m | <±1 | % |
| Parameter | Value |
|---|---|
| Package Size | 40 × 10 × 7.7 mm |
| Interface | UART |
| Power Supply | 5 V |
| Field of View | ≤1.3° |
| Emitter Wavelength | 905 nm |
| Frame Rate | 50 fps |
| Blind Area | 5, unit not stated in Version 1.0 |
| Parameter | Value |
|---|---|
| Operating Temperature | -20°C to 85°C |
| Storage Temperature | -30°C to 70°C |
| Pin | Port | Function |
|---|---|---|
| 1 | 5V | 5 V power input |
| 2 | UART_TX | Module communication output |
| 3 | UART_RX | Module communication input |
| 4 | GND | Ground |
The UART interface provides calculated distance data and can expose main-peak amplitude, signal-to-noise ratio and related ranging information. Version 1.0 documents CRC-16/MODBUS framing and the following command examples.
| Action | Published Command Example |
|---|---|
| Start Stream | A5 12 20 01 00 00 00 43 6D |
| Stop Stream | A5 12 20 02 00 00 00 07 6D |
The DMS604 laser output is designed to remain within Class 1 limits under reasonably foreseeable conditions, including a compliant single-fault condition, in accordance with IEC 60825-1:2014. This statement applies only when the recommended configuration and specified operating conditions are followed.
The specification states that DMS604 is manufactured with reference to the EU restriction on hazardous substances in electrical and electronic equipment and complies with RoHS requirements.
Yes. The DMS604 performance table specifies a typical outdoor distance range of 35 m under 100 klux ambient light with targets from 18% to 88% reflectivity, while operating at a 50 fps frame rate.
Yes. The published typical indoor range is 58 m for targets with 18-88% reflectivity. Final range depends on target, optical, ambient-light and system conditions.
Yes. DMS604 uses a UART interface and is specified for a 50 fps frame rate. The interface supports calculated distance output and can provide main-peak amplitude, signal-to-noise ratio and related information.
Yes. The performance table publishes accuracy as less than ±30 mm below 3 m and less than ±1% at distances of 3 m or greater. Version 1.0 uses a different 2.5 m boundary in its feature summary, so DOMI confirmation is recommended before setting acceptance limits.
Yes. UAV altitude hold and obstacle avoidance are listed applications in the specification. Flight designs must validate surface reflectivity, sunlight, attitude, vibration, environmental protection and control-loop response at system level.
Yes. The specified operating-temperature range is -20°C to 85°C. The published storage-temperature range is -30°C to 70°C.
Yes. Use a smooth, parallel cover with more than 95% transmittance at 905 nm and less than 5% haze. A thickness below 0.8 mm is preferred, and the cover must sit close to the module without bending or tilt to limit optical crosstalk.
Yes. The laser output is designed to remain within Class 1 limits in accordance with IEC 60825-1:2014 when the recommended configuration and specified operating conditions are followed. Do not increase output power or use optics to focus the beam.
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