AR831
Ultrasonic Distance Meter : 0.5 ~ 15m
AR841
Ultrasonic Distance Meter : 0.5 ~ 20m
AR851
Ultrasonic Distance Meter : 0.5 ~ 60m (w/target)
AR811
Ultrasonic Distance Meter : 0.5 ~ 15m
AR600E
Ultrasonic Cable Height Meter