SPD1200M4

Ultra-compact 905 nm rangefinder module for thermal imagers, night vision and civil UAV payloads — a 9.45 × 16.8 × 27.85 mm, ≈ 6 g mini-series distance engine for tight integration.

Max range: 0.2–1,200 m (1,500 m night)
Accuracy: ±0.3 m (≤100 m)
Weight: ≈ 6 g
Interface: UART-TTL

905 nm Class 1 · IEC 60825-1 Thermal imaging Night vision Civil UAVs

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SPEC / SHEET

SPD1200M4 · 905 nm

Technical specifications full sheet


Laser wavelength	905 nm ± 5 nm
Laser beam divergence	< 4 mrad
Optical material	PMMA
Receiving aperture	5.0 × 7 mm
Measurement range	0.2–1,200 m (max 1,500 m at night)
Ranging accuracy	±0.3 m (≤100 m) · ±0.3 m + d·0.7‰ (100–1,200 m)
Measurement frequency	2–15 Hz / 4–15 Hz adaptive
Accuracy rate	≥ 98%
False alarm rate	≤ 1%
Interface	UART-TTL (customizable)
Baud rate	115200 bps (default)
Supply voltage	3.3–5 V
Startup time	≤ 200 ms
Inrush current	≈ 380 mA
Average laser power	On request
Response time	On request
Operating power	Average ≈ 0.45 W · max ≤ 0.75 W
Operating temperature	-20 to +60 ℃
Storage temperature	-30 to +70 ℃
Protection rating	IP67 (inside lens cavity)
Laser safety class	IEC Class 1
Dimensions	9.45 × 16.8 × 27.85 mm (rectangular)
Weight	≈ 6 g
Shock / vibration	1000 g/ms (10×/s along optical axis) · 5–50–5 Hz, 2.5 g
Reliability	MTBF ≥ 1500 h

Interface UART-TTL, 6-pin

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)

Application fit where it ships

Thermal imaging Night vision Civil UAVs

Data is transmitted as a standard 8-byte UART frame (0x55 0xAA header, function code, four data bytes, checksum); distance is returned as the value ×10 for a one-decimal reading. A PC configuration tool and standard command set are available for integration.