RMI 422 PC
Compact and smart robotic mower with app function
General
Compact, capable and communicative. The STIHL RMI 422 PC iMOW® robotic mower combines features that make its operation particularly convenient. Equipped with the iMOW® app*, you can view or organise the most important performance data anytime and anywhere. For example, the dynamic mowing plan can be tracked on the smartphone or tablet as well as the location of the automatic lawn mower – thanks to GPS localisation. Within the active times you defined, the smart robotic mower automatically picks the optimum mowing phases for the best possible cut using the rain sensor and a comparison with online weather services. The battery of the RMI 422 PC has a long life, which enables the iMOW® robotic mower to mow even medium-sized lawns of up to 1,700 m² reliable and with few breaks for charging. Not only does the robotic mower cut your lawn fully automatically, it also supplies it with nutrients at the same time. The iMOW® robotic mower cuts and shreds the grass in one step and returns it to the turf, where it acts as a biological fertiliser for a healthy lawn. If the terrain is uneven, the adaptive slope speed function adapts the propulsion on a gradient by up to 40%. If the iMOW® robotic mower encounters an obstacle when mowing, sensors in the movable hood detect the impact and the machine corrects its direction of travel. An installation kit is required for installation. The STIHL iMOW® robotic mowers comply with all applicable safety standards. Nevertheless, the iMOW® robotic mower is not a toy. During the iMOW® robotic mower's active times, in particular children, bystanders and animals must be kept out of the working area. Please refer to the operating instructions for further information. * The technical requirements for using the iMOW® app can be found at: https://web.imow.stihl.com/systems
Versions
Price-
RMI 422 PC Robotic mower€1,999.00*
* Manufacturer's recommended retail price updated as of 2021. The manufacturer's recommended retail prices are subject to change without notice.
The version(s) available in each country may differ from the above range and specifications; specific details may be subject to change without notice. Please ask your local STIHL Approved Dealer for further information.
Technical data

Technical data
Technical data | Value |
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Working speed rpm | 4.450 |
Cutting height mm | 20-60 |
Mowing duration (average per week/h) h | 28 |
Uncertainty factor Sound pressure level KpA dB(A) | 2 |
Nominal output W | 60 |
Weight kg | 10 |
Measured sound power level LWA dB(A) | 60 |
Maximum gradient % | 40 |
Cutting width cm | 20 |
Maximum lawn area m² | 1.700 |
Measured sound pressure level LpA dB(A) | 49 |
Sound power level LwA dB(A) 1) | 62 |
1) Does not come under the Noise Emissions Guideline 2000/14/EC
The version(s) available in each country may differ from the above range and specifications; specific details may be subject to change without notice. Please ask your local STIHL Approved Dealer for further information.
Features

Standard features
The version(s) available in each country may differ from the above range and specifications; specific details may be subject to change without notice. Please ask your local STIHL Approved Dealer for further information.
Accessories

Accessories
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AFN 075 fixing pins
The fixing pins are available as basic accessories for operating the STIHL iMOW® robotic mower. They are used to anchor the perimeter wire at the edge of the area to be mown by the STIHL iMOW®. One unit comprises 75 fixing pins.
Versions
Price- AFN 075 €20.00*
* Manufacturer's recommended retail price updated as of 2021. The manufacturer's recommended retail prices are subject to change without notice.
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ARB 501 perimeter wire
The perimeter wire defines the working area of the STIHL iMOW® robotic mower. The ARB 501 comprises 500 m on a coil. The wire is 3.4 mm thick is and suitable for installing the automatic lawn mower.
Versions
Price- ARB 501 €271.00*
* Manufacturer's recommended retail price updated as of 2021. The manufacturer's recommended retail prices are subject to change without notice.
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ADV 010 wire connectors
The wire connectors are available as basic accessories for operating the STIHL iMOW® robotic mower. They are used to join several perimeter wire segments. Each package contains 10 wire connectors.
Versions
Price- Satz Drahtverbinder - ADV 010 €22.00*
* Manufacturer's recommended retail price updated as of 2021. The manufacturer's recommended retail prices are subject to change without notice.
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AVS 100 front wheels
The heavy front wheels ensure that the STIHL iMOW® robotic mower can be used safely on especially hilly terrain. The change in weight distribution improves the automatic lawn mower's grip on inclined surfaces.
Versions
Price- Satz Vorderräder schwer - AVS 100 €70.00*
* Manufacturer's recommended retail price updated as of 2021. The manufacturer's recommended retail prices are subject to change without notice.
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The version(s) available in each country may differ from the above range and specifications; specific details may be subject to change without notice. Please ask your local STIHL Approved Dealer for further information.