Product overview
The ERDI LASER LRF1200A1 is a cylindrical 905 nm laser rangefinder module for OEM integration into low-rate handheld instruments and fixed measurement products. It supports single readings on demand and periodic measurements of slow-moving targets. Its measurement range is 5–1,200 m on building targets, with actual reach dependent on target reflectivity, size and visibility. Updates run at 1–3 Hz. Ranging accuracy is ±1 m for 5 m ≤ L ≤ 100 m and ±(1 + 0.004L) m for L greater than 100 m, where L is distance in meters.
The 18 g module has a Ø6.6 mm transmitter lens and a Ø18 mm receiver lens, with IP67 protection applying to the lens only. Host control uses UART with 3.3 V TTL signaling. Supply voltage is 3.3 V ± 0.1 V; do not apply 5 V. Operating power consumption is ≤1.5 W, and standby consumption is ≤400 mW. The operating temperature range is −20 °C to +60 °C. A drawing is supplied with the order. Assembly, alignment, calibration and acceptance take place in-house in Chengdu.

