Easy to install and operate - pool/gate/door alarm with remote.
Multi-purpose - magnetic contact door alarms/doorbell chime/door alarm for pool/fridge door alarm/prying door alarm
Keep remote in sync - More than one remote sensors can be synchronized.
Magnetically triggered - alarm sounds when window or interior door is opened by kids elder & dementia.
Prevent any mishap - keep children away from cabinets, ground pool,Monitoring wandering, sleepwalking, elderly. !If you only received one package, please feel free to contact the seller through the order history.