Kärcher RLM 4 robot lawn mower - 2019 Model - with free 5-year-guarantee - guarantee period starts 01/03/2020

Kärcher RLM 4 robot lawn mower - 2019 Model - with free 5-year-guarantee - guarantee period starts 01/03/2020
Including 5-year guarantee at myRobotcenter
£799.00 *

Kärcher RLM 4: a robot lawn mower that promises plenty of leisure time (UK-plug included)

Garden care can also be convenient! The new robot lawn mower by Kärcher makes you sit up and take notice: It is designed for areas up to 500 mand masters gradients up to ± 45 %. Three freely selectable entry points can be selected for this robot mower. Equipped with a lithium-ion battery and intelligent multi-sensor technology, the 8.8 kg light robotic lawn mower does its job reliably. Set individual mowing times – lean back and relax.

Buy the Kärcher RLM 4 now and benefit from:
✓ FREE 5-year guarantee (worth £ 200.00)
✓ FREE delivery

£799.00 *

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* Prices in GBP incl. VAT and delivery, if applicable



The Kärcher RLM 4: a robust companion for your garden

When lawn mowing is fun: The Kärcher RLM 4 is the ideal partner for gardens up to 500 m2. A four-blade system ensures a thorough mowing result. The robotic lawn mower reaches the lawn edge down to a few centimetres (with a cutting width of 20 cm). Specially rubberized wheels allow it to climb gradients up to ± 45 %. Theft protection included: PIN code lock and alarm function ensure security.

Four knives for the perfect cut

With its unique four-blade system, the robot lawn mower ensures a thorough mowing result. While two-sided sharpened cutting blades trim the grass, two clearing blades take care of the dirt in the body of the robot. The robot mower reaches the lawn edge down to just a few centimetres and passes narrow areas with a width of up to 60 centimetres. Even more: The cutting blades of the robotic lawn mower can be mounted in the opposite direction as soon they are worn out and can therefore be used for a longer time.

A small mountaineer with a profile

Small but powerful: The Kärcher RLM 4 can handle gradients of up to ± 45 % without any problems. The rubberized wheels, which are equipped with a grippy profile, are responsible for optimum traction.

Intelligent multi-sensor technology

The robot is equipped with collision, tilt, lift and loop sensors. When it rains, an adjustable rain sensor can be used to select if the robotic lawn mower should continue mowing – or drive back to the charging station. Apropos charging station: If the battery is almost empty, the robot mower returns back to its charging station automatically.


Simple operation combined with a high level of safety

Easily installed in your garden

The Kärcher RLM 4 can be put into operation in just a few steps: The robot lawn mower is started and stopped manually via a display and the mowing times are individually determined. One hand is enough to adjust the cutting height (between 25 and 55 mm). The special thing about this is that the cutting height is easily visible at all times because of an integrated magnifying glass.

Don’t give thieves a chance

The robotic lawn mower is not only a professional lawn mower, but can also score points in terms of safety: Choose your personal PIN code and protect your robot lawn mower with the PIN code lock and alarm function. 


The advantages of the Kärcher RLM 4 at a glance:

  • Four-blade system (incl. broaching knife)
  • Gradients up to ± 45 % possible
  • Cutting width: 20 cm
  • Cutting height adjustment with magnifying glass
  • Collision, tilt, lift and loop sensors
  • Rain sensor
  • Simple operation via display
  • Theft protection (with individual PIN code allocation) 
Included in delivery

Included in delivery

Kärcher RLM 4 Lawn mowing robot

• Quickstart Guide
• User Manual
• 90 Lawn pegs
• Power supply
• Winter cover
• Charging station
• 5 Grass screws with spanner
• 100m Boundary cable
• Cardboard ruler

Technical details

Technical details

Model description:Kärcher RLM 4 - 2019 model
Recommended up to (approx.):500 m²
Dimensions (approx.):59.8 x 40.0 x 28.5 cm
Weight (approx.):8.8 kg
Programming/controlling the app:No
Height of cut:25 - 55 mm
Cut width:20 cm
Incline:±45 % (24°)
Mowing in the rain:optional (adjustable using rain sensor)
Mowing settings:Four-blade system (two-sided sharpened cutting blades and two clearing blades)
Charging time (approx.):45 min.
Rechargeable battery life (approx.):50 min.
Guarantee on the product:5 years
Guarantee on the rechargeable battery:1 year
Type of rechargeable battery:Lithium ion battery (18 V/ 2,5 Ah)
Boundary:Boundary Wire
Volume (approx.):60dB (A)
Safety:PIN code, theft protection, alarm function, collision, tilt, lift and loop sensors
Special features:

• Cut to edge
• Mulch function
• Theft protection

Payment and delivery

Payment and delivery

Orders totalling over 100 GPB are delivered free of charge within United Kingdom. Orders totalling less than this are charged at 10 GBP per delivery.

Deliveries in United Kingdom will be made by DHL / Royal Mail or a haulage firm (from 31.5 kg) within 3 to 5 working days after the order is placed.

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DHL Express delivery option

During the checkout process, you will have the opportunity to select DHL Express. Orders which are placed untill 12.00 p.m. and are in stock, will be shipped on the same day. The additional fee depends on your delivery address and cart. 



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for Kärcher RLM 4 robot lawn mower - 2019 Model - with free 5-year-guarantee - guarantee period starts 01/03/2020

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