Product Overview


Vehicle Theft is a Major Problem

Every year, over one million vehicles are stolen in the United States. That’s one every 25 seconds. And 85% of these thefts go unsolved. Thieves quickly learn which vehicles are easiest to steal, and specifically target them — resulting in sky high theft rates for vehicles that are unprotected.

Issues With Traditional Alarms

Traditional alarm systems use noise and flashing lights to deter a would-be thief. With false alarms commonplace, an active alarm often gets ignored, and many municipalities are considering banning these systems outright. In addition, aftermarket alarm systems cost hundreds of dollars and the installation is complex — requiring a technician to spend several hours taking apart the vehicle and splicing into its electrical system.

Vehicle Immobilizers

A vehicle immobilizer combats theft by disabling a critical component such as the starter motor or fuel pump, making it virtually impossible for thieves to drive off with a car. Several studies in the U.S., Canada and Europe have shown that installing a vehicle immobilizer reduces theft losses by 50%.

While luxury vehicle manufacturers began introducing these systems in the late 1990s, they are still not available on many vehicles, or are offered only as an expensive add-on option.

Master Lock Starter Sentry, the Answer

The Master Lock Starter Sentry system consists of a relay (or switch) that communicates wirelessly with proximity activated key fob. The Master Lock Starter Sentry relay replaces the starter motor relay or fuel pump relay that comes standard with the vehicle. Installing the Master Lock Starter Sentry relay is as easy as plugging a lamp into a wall socket — the system can be installed in minutes without any tools and there are no wires to cut or splice.

When armed, the Master Lock Starter Sentry relay completely disables the starter motor (or fuel pump) and the vehicle simply cannot be started. The system arms itself automatically 30 second after the vehicle is turned off, and thanks to its proximity activated key fob, automatically disarms itself as the owner approaches the vehicle — providing true “set and forget” operation.

It’s also designed to be fail-safe. If the long-life battery in the key fob should ever run down, the system will remain disarmed so the car may be driven normally until the battery is replaced.

90-Day Money Back GuaranteeMaster Lock Starter Sentry is compatible with all factory-installed or aftermarket alarms and remote keyless entry systems. There is a Master Lock Starter Sentry relay to fit most makes and models.

Best of all, the system is backed by Master Lock, a trusted name in security, and comes with a 90-day no risk guarantee.