LR1200E2

4–1,200 m laser distance sensor with 2–10 Hz adaptive frequency and small-spot targeting, in the lightweight E-series rectangular form.

Max range: 4–1,200 m (max 1,500 m night)
Accuracy: ±1 m (≤500 m)
Weight: ≤ 10 g
Interface: UART-TTL

905 nm Class 1 · IEC 60825-1 Industrial measurement Robotics Outdoor positioning

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SPEC / SHEET

LR1200E2 · 905 nm

Technical specifications full sheet


Laser wavelength	905 nm ± 5 nm
Laser beam divergence	< 4 mrad (small laser spot)
Optical material	Resin aspherical lens
Receiving aperture	9.2 × 14.5 mm
Measurement range	4–1,200 m (max 1,500 m at night)
Ranging accuracy	δ ≤ ±1 m, 6 ≤ d < 500 m · δ ≤ ±50 cm + d·1‰, 500 ≤ d ≤ 1,000 m
Measurement frequency	2–10 Hz adaptive (higher rates customizable)
Measurement accuracy rate	≥ 98%
False alarm rate	≤ 1%
Interface	UART-TTL (customizable)
Baud rate	115200 bps
Supply voltage	3.3–5 V
Startup time	≤ 200 ms
Inrush current	≈ 350 mA
Average laser power	On request
Response time	On request
Sleep power	< 1 mW
Standby power	≈ 0.2 W
Operating power	Short-range ≈ 0.4 W · max ≈ 1 W
Operating temperature	-20 to +55 ℃ (-40 ℃ custom)
Storage temperature	-40 to +60 ℃
Protection rating	IP67 (inside lens cavity)
Laser safety class	IEC Class 1
Dimensions	25.65 × 13.2 × 24.6 mm
Weight	≤ 10 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

Industrial measurement Robotics Outdoor positioning

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.