Range class · 1 km
1 km laser rangefinder modules: 14 ERDI models compared
14 ERDI modules publish a maximum range between 750 m and 1.4 km. The table shows each range with the target it was measured on.
Compare the 1 km class
| Model | Published range | Wavelength | Interface | Accuracy | Weight | Price |
|---|---|---|---|---|---|---|
| LR1000D23 | White building: 4 m – 1,000 m (max. 1,200 m at night); vegetation ≥ 750 m | 905 nm ± 5 nm | UART-TTL, customizable | δ ≤ 100 cm, 5 m ≤ d < 1000 m¹) (Standard version: ±1 m) | ≈ 20 g | From $110 per unit |
| LR1000E2 | 4–1,000 m | 905 ± 5 nm | UART-TTL | ±1 m (D ≤ 400 m); ±(1 + 0.001D) m (D > 400 m) | ≤10 g | From $30 per unit |
| LR1000E4 | 4–1,000 m | 905 ± 5 nm | UART-TTL | ±1 m (D ≤ 400 m); ±(1 + 0.001D) m (D > 400 m) | ≤10 g | From $30 per unit |
| SPD1200N3 | 3–1,000 m | 905 ± 5 nm | UART, 3.3 V TTL; customizable | ±0.5 m at d ≤100 m; ±(0.5 m + 0.00075d) for 100 m < d… | ≤6 g | From $37 per unit |
| LR1200D23 | 4 m – 1,200 m (max. 1,200 m) | 905 nm ± 5 nm | UART - TTL, customizable | δ ≤ ±1 m, 4 m ≤ d < 1000 m¹) (Standard version: ±1 m) | ≈ 20 g | From $130 per unit |
| LR1200E2 | 4–1,200 m | 905 ± 5 nm | UART-TTL | Both sources give ±1 m (6 m ≤ D < 500 m) and ±(0.5 m +… | ≤10 g | From $35 per unit |
| LR1200E4 | 4–1,200 m | 905 ± 5 nm | UART-TTL | ±1 m (D ≤ 400 m); ±(1 + 0.001D) m (D > 400 m) | ≤10 g | From $35 per unit |
| LRF1200A1 | 5–1,200 m | 905 nm | UART, 3.3 V TTL | ±1 m (5 m ≤ L ≤ 100 m); ±(1 + 0.004L) m (L > 100 m) | 18 g | From $35 per unit |
| SPD1200N0 | Catalog range 0.2–1,200 m. A 1,500 m night-time figure appears in the source under… | 905 nm ±5 nm | UART-TTL (customizable) | ±0.3 m (D ≤100 m); ±0.3 m + D × 0.7‰ (100 m < D <1,200 m) | ≈5 g | From $35 per unit |
| SPD1200N2 | Catalog range 0.2–1,200 m. A 1,500 m night-time figure appears in the source under… | 905 nm ±5 nm | UART-TTL (customizable) | ±0.3 m (D ≤100 m); ±0.3 m + D × 0.7‰ (100 m < D <1,200 m) | ≤5 g | From $35 per unit |
| SPD1200N4 | Catalog range 0.2–1,200 m. A 1,500 m night-time figure appears in the source under… | 905 nm ±5 nm | UART-TTL (customizable) | ±0.3 m (D ≤100 m); ±0.3 m + D × 0.7‰ (100 m < D <1,200 m) | ≈5 g | From $35 per unit |
| SPD1200S2 | Catalog range: 0.2–1,200 m. Sources also report a 1,500 m night-time maximum under… | 905nm±5nm | UART-TTL, Customizable | ±0.3m (≤400m)±0.5m + d × 0.1% (400m＜d＜1,200m) | ≤10g | From $150 per unit |
| SPD1200Z2 | Catalog range: 0.2–1,200 m; strong sunlight or low visibility may reduce range. Sources… | 905nm±5nm | UART-TTL, Customizable | Current published table and archived factory PDF: ±0.2 m… | ≈6g | From $150 per unit |
| SPD1200ZG | 0.1–1,200 m | 905 ± 5 nm | UART-TTL; customizable | ±0.5 m at d ≤100 m; ±(0.5 m + 0.0007d) for 100 m < d <1,200… | ≤5 g | From $80 per unit |
Range test conditions
| Model | Published range | Target and conditions |
|---|---|---|
| LR1000D23 | White building: 4 m – 1,000 m (max. 1,200 m at night); vegetation ≥ 750 m | The white-building, vegetation and night-time figures are separate source test cases. Numeric target reflectivity and atmospheric test conditions are not stated in the reviewed public technical table; confirm the applicable controlled document. |
| LR1000E2 | 4–1,000 m | Standard range; actual reach depends on target and environment. |
| LR1000E4 | 4–1,000 m | Standard range; actual reach depends on target and environment. |
| SPD1200N3 | 3–1,000 m | Building target; visibility ≥10 km; humidity ≤60% |
| LR1200D23 | 4 m – 1,200 m (max. 1,200 m) | Target reflectivity, target dimensions and atmospheric test conditions are not stated in the reviewed public technical table; confirm the applicable controlled document. |
| LR1200E2 | 4–1,200 m | Standard range; actual reach depends on target and environment. |
| LR1200E4 | 4–1,200 m | Standard range; actual reach depends on target and environment. |
| LRF1200A1 | 5–1,200 m | Building target; the source table gives ≥5–1200 m. |
| SPD1200N0 | Catalog range 0.2–1,200 m. A 1,500 m night-time figure appears in the source under special conditions and is not a guaranteed range. | SPD1200N0 controlled source technical table; strong sunlight or low visibility may reduce range |
| SPD1200N2 | Catalog range 0.2–1,200 m. A 1,500 m night-time figure appears in the source under special conditions and is not a guaranteed range. | SPD1200N2 controlled source technical table; strong sunlight or low visibility may reduce range |
| SPD1200N4 | Catalog range 0.2–1,200 m. A 1,500 m night-time figure appears in the source under special conditions and is not a guaranteed range. | SPD1200N4 controlled source technical table; strong sunlight or low visibility may reduce range |
| SPD1200S2 | Catalog range: 0.2–1,200 m. Sources also report a 1,500 m night-time maximum under special conditions; it is not a guaranteed range. | Strong sunlight or low visibility may reduce range. The night-time row does not state a numeric target reflectivity or visibility condition; confirm performance against your actual target and environment. |
| SPD1200Z2 | Catalog range: 0.2–1,200 m; strong sunlight or low visibility may reduce range. Sources also list a 1,500 m night-time maximum under special conditions; it is not a guaranteed range. | |
| SPD1200ZG | 0.1–1,200 m | Visibility ≥10 km; humidity ≤60%; building target |
Integration
All UART models share one frame family documented in erdi-lrf-drivers, with ArduPilot, ROS 2, Arduino, Raspberry Pi and STM32 examples. Each model page links its own wiring, driver and price pages.
FAQ
Which is the lowest-priced 1 km laser rangefinder module?
Among the models listed, the LR1000E2 has the lowest published price, From $30 per unit with shipping included.
Which is the lightest 1 km laser rangefinder module?
The SPD1200N0 at ≈5 g is the lightest of the models listed.
Why does every range figure show a condition?
Vendors measure range on different targets (white board, building, 10 percent reflectivity) and in different visibility. A number without its condition cannot be compared, so this page lists the condition next to each range.
Related guides
Model records
Open the model page for the full specification table, downloads, published price and ordering.
- LR1000D23 — LR1000D23 905 nm Laser Rangefinder Module
- LR1000E2 — LR1000E2 905 nm Laser Rangefinder Module
- LR1000E4 — LR1000E4 905 nm Laser Rangefinder Module
- SPD1200N3 — SPD1200N3 905 nm Laser Rangefinder Module
- LR1200D23 — LR1200D23 905 nm Laser Rangefinder Module
- LR1200E2 — LR1200E2 905 nm Laser Rangefinder Module
- LR1200E4 — LR1200E4 905 nm Laser Rangefinder Module
- LRF1200A1 — LRF1200A1 905 nm Laser Rangefinder Module