Roomba 400 Series Cliff Sensors

Works with Roomba Red, Sage, Discovery, Discovery SE, and Schedulers, Red, Dirt Dog

All 4xxx/4xx models.

Each Additional item you buy, save $2 in shipping!! (When paid for together)

Ships out within 24 hours!!

These are the front sensors that detect if there is a cliff or stairs the roomba might fall off of. 

Let me know if your roomba's front wheel is a caster (black/white) or

a fixed (non turning) front wheel (all black).  AND what model number your roomba is.

If you do not let me know then I will pick a random one and it might not be compatible.