SECURE SMARTPHONE-OPERATED GUN TRIGGER LOCK

A gun trigger-locking device which is configured to be manually installed on a gun with a trigger-blocking member disposed behind the trigger to prevent the gun from being fired. The device includes a data receiver, a data memory and a logic device for determining whether data received by the receiver is the same as data stored in the memory. If a data match is indicated, the logic device causes an electromagnetic device to move a locking member to an unlocked position, permitting the trigger-blocking member to be unlocked so the gun can be fired. A separate electronic key is provided to transmit unlock data to the data receiver of the trigger-locking device. This unlock data includes biologic data identifying the gun owner or some other person who is licensed or otherwise authorized to fire the gun. The trigger-locking device includes means for detecting when the device has been tampered with or removed from the gun, and transmitting an alert signal to the electronic key, for relaying to a central station.