Lawnmaster L12 Robot Lawn Mower


£599.99 L12-01

The LawnMaster robot lawn mower for larger lawns. Designed to cut lawns up to 800m2 at a height of 20mm to 60mm, this compact mower drops its clippings back onto the surface of the grass for a naturally fertilised, healthier lawn. Includes charging station, 10m power cable supply, 180m boundary wire and 300 pegs. Model no. L12-01.


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Combined Shape Specification

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With a larger battery and longer boundary wire than the L10, the L12 takes care of lawns up to 800m2 giving you the freedom to relax or get other things done. The L12 independently mows for up to ten hours a day, leaving a neat finish with minimal effort. When the battery runs low, the mower returns to its docking station to recharge. The L12 cuts grass little and often in a random pattern, returning tiny clippings to the surface, naturally fertilising your grass and creating a lush looking, well-manicured lawn. 3 pivoting blades can be adjusted to cut the grass any height from 20mm to 60mm by turning a simple dial. For safety and security, the mower locks with a PIN code and 'bump and lift' sensors ensure that the blade stops if the mower is lifted or bumps into obstacles on the lawn. Safe to use on slopes of up to 35% and IPX5 rated, the L12 can be easily cleaned with a low pressure garden hose. Once installed, the L12 requires minimal interaction. Installation and programming is straightforward, with supporting quick start guide and step-by-step video found on our LawnMaster Support page. Includes charging station, power supply, 180m boundary wire and 300 pegs.


2 YEAR GUARANTEE | Free Next Working Day Delivery


Auto charging

The mower will mow the lawn and return to the charging station when the battery is low.

Easy Set-Up

Easy to set up with complete step-by-step instructions provided. Simply mark out the robot mower's cutting area, which can be up to 800m², with the boundary wire and pegs that are supplied.

Easy to Operate

Simple keypad to programme the mower to operate 4, 6, 8 or 10 hrs a day, mowing on alternate days, performing perimeter cut mode, and sending the mower back to the charging station when needed. Follow our simple operating video on our Product Support page.

Rain sensor

Rain sensor detects wet weather and sends the mower back to the base station to wait for better weather. Avoiding any potential damage to the lawn.

3 pivoting blades

3 sharp blades precisely cut the tips off the grass, giving a neat finish to the lawn. The grass clippings are returned to the lawn acting as a natural fertiliser.

Safety and Security

Wheel sensors allow the mower to bump into and back away from fixed objects in the lawn such as furniture. Lift sensors stop the blades if the mower is lifted.

technical details

Model Number


Power Supply


Cord Length


Battery Voltage


Battery Energy


Battery Capacity


Cutting Width




Cut Height Settings (mm)


Battery Charging Time

100 mins

Continuous Run Time

120 mins


8.2kg with battery

Recommended Cutting Area


Cutting Duration

4, 6, 8 & 10 hours

Cutting Pattern


IPX Rating


Rain Sensor


Perimeter Cut Mode




Battery Type

Integrated 20V MAX 4.0Ah (replaceable)

Interchangeable Battery



2 Years

Instruction Manual


LawnMaster L12 Robot Lawn Mower
LawnMaster L12 Robot Lawn Mower

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