SPD1200N3 · 905 nm Laser Rangefinder Module
SPD1200N3 datasheet: specifications, range conditions, interface
Every value below is copied from the published SPD1200N3 specification table with its test condition, so you can compare it with other modules on equal terms.
SPD1200N3 key specifications
| Item | Published value |
|---|---|
| Model | SPD1200N3 |
| Published range | 3–1,000 m (Building target; visibility ≥10 km; humidity ≤60%) |
| Wavelength | 905 ± 5 nm |
| Interface | UART, 3.3 V TTL; customizable |
| Accuracy | ±0.5 m at d ≤100 m; ±(0.5 m + 0.00075d) for 100 m < d <1,000 m |
| Update rate | 2.5–15 Hz |
| Supply | DC 3.3–5 V |
| Weight | ≤6 g |
| Dimensions | 14 × 18 × 22.3 mm; rectangular; 6061 aluminum alloy |
| Laser safety | IEC Class 1 stated in the ranging specification |
| Price | From $37 per unit |
Full specification table
ERDI published product specifications, captured 2026-10-08.
| Parameter | Published value | Condition / note |
|---|---|---|
| Laser wavelength | 905 ± 5 nm | Ranging emitter; not the indication-laser wavelength |
| Beam divergence | <6 mrad | See the controlled model document |
| Optical element | Aspheric lens | See the controlled model document |
| Receive / transmit aperture | Ø6.5 mm | See the controlled model document |
| Measurement range | 3–1,000 m | Building target; visibility ≥10 km; humidity ≤60% |
| Ranging accuracy | ±0.5 m at d ≤100 m; ±(0.5 m + 0.00075d) for 100 m < d <1,000 m | d is distance in meters; no additional endpoint accuracy inferred |
| Measurement update rate | 2.5–15 Hz | Varies with distance; not the laser pulse repetition rate |
| Measurement success rate | ≥98% | Source rating; validate representative targets and conditions |
| False alarm rate | ≤1% | Source rating; not a universal field guarantee |
| Interface | UART, 3.3 V TTL; customizable | See the controlled model document |
| Default baud rate | 115200 bps | See the controlled model document |
| Supply voltage | DC 3.3–5 V | Does not imply 5 V tolerance on serial inputs |
| Startup time | ≤200 ms | See the controlled model document |
| Instantaneous startup current | Approximately 200 mA | See the controlled model document |
| Standby power consumption | ≤0.3 W | See the controlled model document |
| Average power consumption | ≤0.5 W | See the controlled model document |
| Operating temperature | −20 to +60 °C | See the controlled model document |
| Storage temperature | −30 to +70 °C | See the controlled model document |
| Ingress protection | IP67 within the lens cavity only | Not a whole-module or finished-equipment rating |
| Laser safety class | IEC Class 1 stated in the ranging specification | Do not extend this rating to indication/alignment modes or the finished system without confirmation |
| Nominal body dimensions / material | 14 × 18 × 22.3 mm; rectangular; 6061 aluminum alloy | Use the controlled mechanical drawing and tolerances |
| Weight | ≤6 g | See the controlled model document |
Ordering the SPD1200N3
The published single-unit price of the SPD1200N3 is $95, falling to $37 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: SPD1200N3 model page.
FAQ
What is the maximum range of the SPD1200N3?
The published range is 3–1,000 m (Building target; visibility ≥10 km; humidity ≤60%). 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 SPD1200N3 use?
The published communication interface is UART, 3.3 V TTL; customizable @ 115200 bps.
What laser wavelength does the SPD1200N3 use?
The published wavelength is 905 ± 5 nm; laser safety entry: IEC Class 1 stated in the ranging specification.
How much does the SPD1200N3 cost?
The published single-unit price of the SPD1200N3 is $95, falling to $37 per unit at the largest published quantity band. Prices include shipping and are ordered directly from erdilrf.com.
Related guides
Model records
Open the model page for the full specification table, downloads, published price and ordering.