AR851+ Smart Sensor

Ultrasonic ranging principle is to use ultrasound in the air propagation speed, and the measurement of sound in a known after launch meet obstacles reflected time, according to transmit and receive a lag between the time it takes to calculate the actual distance engine off-time eigenvalue obstacles.

SPECIFICATIONS
Measuring Range	Single Unit:0.3~20m; Double Unit:1.0~60m
Accuracy	±1%
Measure In Imperial/Metric	Y
Resolution	1cm
Laser Class	2 class
Laser Power & Wavelength	P?1mW ?=635nm
Auto Power off	Y
Low Battery Indication	Y
Backlight	Y
Continueing Measurement	Y
Measuring Benchmark Setup	Y
Length Summation	Y
Area/ Volume Measurement Function	Y