Engine immobilisers are the best deterrent against theft of vehicles as they physically stop the engine from being started or even allowing it to run.
(All Mongoose alarm systems include engine immobilisation as a standard feature)
Compare the models
Immobilisers are great when you don't want any siren chirps when arming and disarming.
Remote controlled models also allow for keyless entry (remote locking) whereas the transponder models offer the highest immobilisation security possible.
Call us if you need advice on which is best for you.