John Deere D35RE Scarifier
The John Deere D35RE electric scarifier is a very popular choice for domestic use on gardens up to 700m². 35cm working width with 15 blades. It's lightweight at 18.5kg using an ABS deck.
Using a scarifier twice-yearly (spring and autumn) will dramatically improve your lawn over time by removing moss and thatch, allowing the grass to spread and grow stronger. Aerating the lawn improves the supply of nutrients to the soil. You can use in conjunction with a moss killer/lawn feed if you wish.