LR1200E2 · 905 nm Laser Rangefinder Module
LR1200E2 datasheet: specifications, range conditions, interface
Every value below is copied from the published LR1200E2 specification table with its test condition, so you can compare it with other modules on equal terms.
LR1200E2 key specifications
| Item | Published value |
|---|---|
| Model | LR1200E2 |
| Published range | 4–1,200 m (Standard range; actual reach depends on target and environment.) |
| Wavelength | 905 ± 5 nm |
| Interface | UART-TTL |
| Accuracy | Both sources give ±1 m (6 m ≤ D < 500 m) and ±(0.5 m + 0.001D) for the second interval. The archived factory pack table ends the second interval at 1,000 m; the current official public PDF v1.2 lists 500 m ≤ D ≤ 1,200 m. Sources differ; confirm the applicable supplied revision. |
| Update rate | 2–10 Hz (adaptive) |
| Supply | 3.3–5 V |
| Weight | ≤10 g |
| Dimensions | Archived factory pack table: 25.65 × 13.2 × 24.6 mm. Current official public PDF v1.2: 25.7 ± 0.1 mm × 13.3 ± 0.1 mm × 24.6 mm (+0/−0.05 mm). Sources differ; confirm the supplied drawing. |
| Laser safety | Class 1 |
| Price | From $35 per unit |
Full specification table
ERDI published product specifications, captured 2026-10-08.
| Parameter | Published value | Condition / note |
|---|---|---|
| Laser wavelength | 905 ± 5 nm | |
| Measurement range | 4–1,200 m | Standard range; actual reach depends on target and environment. |
| Ranging accuracy | Both sources give ±1 m (6 m ≤ D < 500 m) and ±(0.5 m + 0.001D) for the second interval. The archived factory pack table ends the second interval at 1,000 m; the current official public PDF v1.2 lists 500 m ≤ D ≤ 1,200 m. Sources differ; confirm the applicable supplied revision. | Whiteboard target, 90% reflectivity: 2.3 × 2.3 m for the first distance interval; 2.3 × 4.6 m for the second. |
| Measurement update rate | 2–10 Hz (adaptive) | Completed distance outputs; not the optical pulse-repetition rate. |
| Interface | UART-TTL | Custom configurations are specified separately. |
| Baud rate | 115200 bps | |
| Supply voltage | 3.3–5 V | |
| Operating temperature | −20 °C to +55 °C | |
| Storage temperature | −40 °C to +60 °C | |
| Mechanical drawing dimensions | Archived factory pack table: 25.65 × 13.2 × 24.6 mm. Current official public PDF v1.2: 25.7 ± 0.1 mm × 13.3 ± 0.1 mm × 24.6 mm (+0/−0.05 mm). Sources differ; confirm the supplied drawing. | Archived factory pack: table p2 gives 13.2 mm, while the drawing p4 labels 13.05 mm. The current official public PDF v1.2 p3 gives a different nominal envelope with tolerances. Source documents differ; confirm the applicable supplied drawing and connector envelope before design-in. Archive/publication dates do not identify the delivered revision. |
| Weight | ≤10 g | |
| Ingress protection | IP67 | Lens cavity only; not a blanket rating for the exposed board or the complete host product. |
| Laser safety class | Class 1 | As stated in the model manual; finished-equipment assessment is separate. |
| Laser beam divergence | < 4 mrad (small laser spot) | |
| Optical material | Resin aspheric lens | |
| Receiving aperture | 9.2 mm × 14.5 mm | |
| Startup time | ≤ 200 ms | |
| Inrush current | ≈ 350 mA | Approximate value in the specification table. |
| Sleep power consumption | < 1 mW | |
| Standby power consumption | ≈ 0.2 W | Approximate value in the specification table. |
| Short-range power consumption | ≈ 0.4 W | Approximate value in the specification table. |
| Operating power consumption | ≈ 1 W | Approximate value in the specification table. |
Published applications
- Industrial measurement
- Robotics
- Outdoor positioning
Ordering the LR1200E2
The published single-unit price of the LR1200E2 is $90, falling to $35 per unit at the largest published quantity band. Prices include shipping and are ordered directly from erdilrf.com. Technical questions and quantity quotes: tommy@erdimail.com. Full specification table, downloads and ordering: LR1200E2 model page.
FAQ
What is the maximum range of the LR1200E2?
The published range is 4–1,200 m (Standard range; actual reach depends on target and environment.). A range figure is only comparable together with the target and conditions it was measured on, so the condition is listed next to the value.
Which interface does the LR1200E2 use?
The published communication interface is UART-TTL @ 115200 bps.
What laser wavelength does the LR1200E2 use?
The published wavelength is 905 ± 5 nm; laser safety entry: Class 1.
How much does the LR1200E2 cost?
The published single-unit price of the LR1200E2 is $90, falling to $35 per unit at the largest published quantity band. Prices include shipping and are ordered directly from erdilrf.com.
Related guides
- LR1200E2 UART wiring, pinout and protocol
- LR1200E2 Pixhawk / ArduPilot setup
- LR1200E2 ROS 2 driver
- LR1200E2 Arduino library
- LR1200E2 Raspberry Pi Python reader
- LR1200E2 price and ordering
- LR1200E2 power supply and current
- LR1200E2 accuracy and range test conditions
- LR1200E2 dimensions and weight
- UART laser rangefinder modules
- 905 nm laser rangefinder modules
- Class 1 laser rangefinder modules
- robot navigation laser rangefinder modules
- industrial and level measurement laser rangefinder modules
Model records
Open the model page for the full specification table, downloads, published price and ordering.