Virtual wall for iRobot Scooba 230, 385 and 390

A virtual wall prevents your iRobot from entering areas that are outside the cleaning limits. The wall radiates an infrared beam with three beam length settings, preventing your robot from falling down the stairs or cleaning in another room Requires 2 batteries, fully ready for operation after plugging in.
Parameters and Specifications:
Beam length:
0-1m
1,5-2m
2.5m and above
Colour:
White-gray
Compatible with:
IRobot Scooba