Some of the most advanced Roomba robot vacuums are on sale right now. Wellbots has the poop-detecting iRobot Roomba j7+ for an all-time low price of $549. Or, you can opt for our favorite vacuum / mop hybrid, the upgraded Roomba j7+ Combo, for $799. In both cases, you can enter the coupon code ENGROOMBA200 to receive the $200 discount exclusively for Engadget readers.

The Roomba j7+ includes a bundled cleaning station and iRobot’s poop detection tech. The company says the vacuum’s advanced sensors will avoid pet feces — and its “Pet Owner Official Promise” (P.O.O.P.) policy assures you it will replace the device for free if it runs over pet waste within its first year. The self-emptying vacuum also includes an intelligent mapping feature that lets you choose which rooms it covers, and you can schedule multiple cleanings per day in advance. The Roomba j7+ is usually $800, so its $549 discounted price (with code ENGROOMBA200) is worth noting if you’ve been on the lookout for a cleaning machine.

Wellbots’ coupon also applies to that model’s upgraded sibling, one of Engadget’s picks for the best robot vacuums. The Roomba j7+ Combo takes the j7+’s base features (including self-emptying tech and poop detection) and adds wet mopping, letting you transition seamlessly between carpet and floor cleaning. (It can do both simultaneously on hard floors.) It also includes a feature that can help keep your rugs dry by lifting the mop out of reach when it detects it’s on a carpet. The j7+ Combo typically costs $1,100.

Both devices work with the iRobot mobile app. It lets you manage the devices’ smart mapping capabilities, remote startup and scheduling. We find the app to be simple, intuitive and a significant selling point for Roomba robot cleaners.

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This article originally appeared on Engadget at https://www.engadget.com/irobots-poop-detecting-roomba-j7-is-at-an-all-time-low-price-right-now-130007090.html?src=rss