Police have appealed for witnesses after two outbuildings were broken into in the Pulborough and Petworth area.
Burglars stole a chainsaw and a pole saw from a shed in Fittleworth and stole a strimmer from a garage in Lurgashall between May 2 and 3, said Sussex Police.
A spokesman said a green Peugeot 306 car was thought to have been used in the overnight burglaries.
Police said they are hunting for a male passenger who was in the car.
Detective Constable Lee Simmonds, of the Worthing Response Investigation Team, said: “I would like to hear from anyone who may have seen or heard anything suspicious at either location, or noticed the green Peugeot car nearby.
“I’d also like to remind householders to be vigilant and to ensure their properties, and in particular outbuildings, are locked and secured.”
Officers arrested a man, aged 50, from Petworth, on suspicion of burglary. He has been released on police bail until June 19.
Anyone with information is asked to email firstname.lastname@example.org or phone 101, quoting serial 176 of 3/5.
Alternatively they can contact the independent charity Crimestoppers without having to leave their name on 0800 555 111.
Police encourage the registration of valuable items on the world’s largest property database so that if they are stolen, they can be reunited with the owners and there is evidence to help prosecute offenders.
Property can be registered in just a few minutes by visiting www.immobilise.com. To watch a video about Immobilise and how it works, visit www.youtube.com/watch?v=0XZ66WEER_c.