Original AUTO Virtual Wall for iRobot Roomba - $35 in Peterborough, Ontario for sale

Original AUTO Virtual Wall for iRobot Roomba
Description:
An Auto Virtual Wall prevents Roomba from entering areas that are off-limits. This model saves you a step, remaining constantly on so you don't have to remember to turn it on/off.
The new Auto Virtual Wall uses an infrared beam, preset for 4 to 7 feet, to block Roomba from doorways and other off-limit areas. And you never have to remember to turn it on or off! Auto Virtual Walls remain on for up to six months.

Only compatible with Robot SKUs 51102, 53101, 53301, 53601, 54102, 55101, 55102, 56101, 56301 and 56502..