Compact tube series (B / C)
LR1000C4
905 nm Class 1 DToF rangefinder module
Ranging envelope
4–1,000 m
Key parameters
- Ranging range
- 4–1,000 m
- Accuracy
- ±1 m (≤500 m)
- Frequency
- 3–10 Hz adaptive
- Interface
- UART-TTL
- Envelope
- 28.8 × 30.5 × 20.9 mm
- Mass
- ≤ 16 g
Published price
$40 USD / unit
Entry-band unit price at the smallest published quantity. Shipping and Incoterms are confirmed in the quotation.

Compact 905 nm rangefinder module for night vision, thermal imagers and UAV payloads — C-series variant in a 28.8 × 30.5 × 20.9 mm square housing, tuned for tight optical assemblies.
Designed into
- Night vision
- Thermal imagers
- UAV payloads
Emitter
905 nm ± 5 nm
Verified specifications
Every figure below is published together with the condition it was measured under. Where the source states no condition, the column is left empty rather than filled in.
| Parameter | Value | Condition |
|---|---|---|
| Laser wavelength | 905 nm ± 5 nm | Source technical table |
| Laser beam divergence | < 6 mrad | Source technical table |
| Optical material | Resin aspheric lens | Source technical table |
| Receiver aperture | 9.2 × 14.5 mm | Source technical table |
| Ranging range | 4–1,000 m | Source technical table |
| Ranging accuracy | ±1 m (≤500 m) · ±1 m + d·0.1% (500–1,000 m) | Source technical table |
| Ranging frequency | 3–10 Hz adaptive | Adaptive · source technical table |
| Valid measurement rate | ≥ 98% | Source technical table |
| False alarm rate | ≤ 1% | Source technical table |
| Interface | UART-TTL | Customizable |
| Baud rate | 115200 bps | Source technical table |
| Supply voltage | 3.3–5 V | Source technical table |
| Startup time | ≤ 200 ms | Source technical table |
| Inrush current | ≈ 350 mA | Source technical table |
| Sleep power | < 1 mW | Source technical table |
| Standby power | < 0.3 W | Source technical table |
| Operating power | Near-range < 0.5 W · long-range < 1.2 W | Source technical table |
| Average laser power | On request | Source technical table |
| Response time | On request | Source technical table |
| Operating temperature | -20 to +55 ℃ (-40 ℃ optional) | Source technical table |
| Storage temperature | -40 to +60 ℃ | Source technical table |
| Protection rating | IP67 (inside lens cavity) | Source technical table |
| Laser safety class | IEC Class 1 | Source technical table |
| Dimensions | 28.8 × 30.5 × 20.9 mm (square) | Source technical table |
| Weight | ≤ 16 g | Source technical table |
| Shock / vibration | 1000 g/ms (10×/s along optical axis) · 5–50–5 Hz, 2.5 g | Source technical table |
| Reliability | MTBF ≥ 1500 h | Source technical table |
Pin assignment
| Pin | Signal | Description |
|---|---|---|
| 1 | GND | Power − |
| 2 | VCC | Power + |
| 3 | I/O | Reserved for expansion |
| 4 | TXD | Module → host |
| 5 | RXD | Host → module |
| 6 | SW-SHOT | Function enable (active high) |
Engineering references
Where LR1000C4 is worked through
These are the pages that use this model as a worked example, not a general reading list.
Adjacent models