SPD1200N3 · 905 nm Laser Rangefinder Module
SPD1200N3 accuracy and range test conditions
A range number needs a target and conditions. For the SPD1200N3 the published figure is 3–1,000 m (Building target; visibility ≥10 km; humidity ≤60%). Accuracy: ±0.5 m at d ≤100 m; ±(0.5 m + 0.00075d) for 100 m < d <1,000 m.
Range, accuracy and rate as published
| Parameter | Published value | Condition / note |
|---|---|---|
| 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 |
| Default baud rate | 115200 bps | See the controlled model document |
How to read the conditions
Reflectivity is the fraction of laser light the target returns: a white board is about 90 percent, a building about 70 percent, grass and soil 10–30 percent. Visibility limits long-range figures because haze absorbs the pulse both ways. When two modules quote different targets, convert both to the same target before comparing; the open module database lists every vendor's condition next to its number.
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.