The Ambrogio Twenty ZR robot lawn mower is a real product available now that does not require a perimeter wire to mow the lawn. Instead, it uses radar or ultrasonic sensors to delineate lawn edges and a guide wire to dock on its own.

Dont' be fooled by all of the promises of a no perimeter wire robot that is not a real product from a major manufacturer. Zucchetti Centro Sistemi, the manufacturer of Ambrogio, is one of the earliest true robot lawn mower companies, with over 20 years shipping robot lawn mowers. If they haven't cracked this problem yet, how can you trust these "fly by night" Kickstarter companies who are researchers (at best)? Kiss your money good bye if you give it to a crowd-funding campaign.

Large corporations that are "newbies" in the robot lawn mower market are also struggling to make a product that works. There are lots of products coming on the market now that will prove to be full of empty promises when these companies realize it's not so easy. Or you'll learn unsightly beacons are required around the perimeter or a tall pole is required to transmit a localized signal. Or you'll find out the edges of the lawn are not mowed. Or you will learn their product only works on open fields. Do your research carefully.

How does AmbrogioTwenty ZR Work?

Twenty ZR uses radar or ultrasonic sensors to detect obstacles and boundary edges*. If you have a fenced-in back yard, a play set a trampoline, dense flowerbeds, thick hedges, the electronic radar/ultrasonic sensorts will detect them. For anything that needs to be delineated, objects will need to be 6" tall so the electronic sensors will detect them. Twenty ZR's radar technology make it a safer robot lawn mower, because it is touchless.

*Twenty ZR will mow your neighbor's yard if there is no boundary it can detect between your yard and your neighbor's. View the Twenty ZR manual to determine how to properly prepare the yard for successful operation.

Ambrogio Connect (Optional)

The Ambrogio Twenty ZR robot lawn mower can be upgraded to include 4G technology that enables Ambrogio Connect. Connect provides error notifications and enables certain commands for remote operation from anywhere in the world. Alexa and Google Home are enabled via Connect. Connect includes GPS tracking. A geofence can be enabled for theft recovery. Upon activation of the Connect feature through the Ambrogio Remote app, the Ambrogio manufacturer, Zucchetti Centro Sistemi, pays for service for the first two years up to a certain data usage. After 2 years, service can be renewed through the Ambrogio Remote app. The cost is nominal. such as $60 per year.

If you find the added cost of the communication module objectionable, reconsider the Twenty Elite that uses a perimeter wire. It comes with 4G communication built-in.

Ambrogio Remote App: Steer Your Robot

The Ambrogio Remote App enables set-up and control of your robot lawn mower. It also lets you steer your robot lawn mower like a remote control car! This feature is helpful if your robot lawn mower was turned off and the grass became too tall in certain spots. It's also fun!  laugh

How to Choose Twenty ZR

Wondering if Twenty ZR  is a good fit for your yard?  First make sure the grassy areas encompass less than 10,000 square feet (0.25 acres), there aren't any hills greater than 24 degrees and there isn't a slope on the edge of the lawn, such as a slope down to a street, that is over 11 degrees. These are the basic parameters for determining whether the robot will perform well for you. Then consider grass density, the number and type of trees/objects, whether zones are required, whether the grass is fertilized and irrigated. These factors increase the mowing demand that may require a higher capacity model or the use of multiple units, such as one in the front and one in the back. Twenty ZR is not a good fit for certain stiff grass types such as St Augustine or Zoysia. Stiff or dense grass may lift Twenty ZR off the ground when the blade is set at the highest. Certain grasses require the blade to be set at 1.75"-2.5". Need help? Call 847-960-8520 or email.

Twenty ZR comes with an 18cm Star Blade. The 4-cutter blade also fits Twenty ZR and can be purchased separately.

Ambrogio Twenty ZR features shown in three photos


thumbnail of youtube video Ambrogio robot twenty ZR


All Ambrogio robots* come with a 2 Year Manufacturer Warranty!

**All Ambrogio robots have a two year battery warranty if the robot is not left to sit for 5 months uncharged. Charge fully when taken out of service, charge at least once over the winter to keep the battery in top condition.


More information and specifications are available here:

Ambrogio Twenty ZR

An optional Recharging Base Guide Wire in a 12" wide loop configuration is needed for fully autonomous operation. 164ft of guide wire and 40 plastic pegs are included with your purchase. Additional Recharging Base Guide Wire* and extra pegs are sold separately here - or contact the Authorized Ambrogio Dealer in your area for professional installation.

*Guide wire substitution voids warranty.

Why buy from us?

We are an Upper Midwest distributor for Ambrogio Robot Mower. We have been working with Ambrogio robots since 2006. As the most experienced internet company for the Ambrogio and LawnBott® brands in the US, we serve consumers and businesses who do not have a dealer. We take pride in providing top-notch customer service.

Our dealers are located in Illinois, Indiana, Michigan, Ohio, Wisconsin and in select locations around the USA. Learn more here: About Us  Find our dealers here: Dealer Locator

Questions about whether Ambrogio robot will work for your yard? Participate in the AmbrogioRobotMower Reddit Logo

How to Purchase

Call now!  (847) 960-8520  We are glad to help you with your purchase.   Or, add the robot to the cart, select accessories and order online!


6 Months 0% Financing available via PayPal Credit!

You’ll have the option to make no payments for 6 months, on qualifying purchases. You will receive monthly statements and can make payments at any time. As long as you pay in full by the promotion expiration date, you will not be billed interest for that purchase. If you do not pay in full, interest will be calculated from the posting date (which is usually within a few days after the purchase date) and will be billed to your account.


Visit the Accessories Page

Ambrogio accessories: wire, pegs, wiresaver, wire break finder, spiked wheels in a strip with labels

Ambrogio Robot Mower Logo

Robotic Mowers
Perimeter Wire Required No
Automatic Recharging Yes via Guide Wire
Max Area Coverage 0.25 Acres
Recommended Area Coverage 0.2 Acres
Dense Grass Warning Final mow below blade
Max # of Zones 4
Max Slope on Perimeter 11 Deg
Max Slope Lawn Interior 24 Deg
Mow Zone at Selected Time No
Run Time per Charge 4 Hours
Max Cutting Height 2.75" Sparse Grass
Cutting Width 7"/18cm
Blade Type Bent 4pt Star
Reversible Blade No
Rain Sensor Yes
Mowing Algorithm Random + Spiral
ZCS Connect Optional, Special Order
Touch Screen No
LCD Display No
Touch Screen + App Control No
Buttons + App Control Yes
Steer via Bluetooth Yes
Setup via Bluetooth Yes
Send Commands Worldwide w/ZCS Connect
Soft Rubber Tires Yes, Rear
Spiked Wheels No
4WD No
Front Wheel Steering No

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Ambrogio Twenty ZR Robot Mower with No Perimeter Wire!

  • $1,799.00

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