The Wheeler Professional Digital Trigger Gauge makes measuring the trigger pulls of your weapon and easy and efficient task. The gauge measures trigger pulls in pounds or kilograms and records the MAX and MIN trigger pull as well as the number of trigger pulls within session. Provides +/- .1 oz. accuracy with a load sensor directly contacting the trigger and a 0-12 lbs. range. Offers and ergonomic over molded design and soft touch buttons for easy handling. The arm folds inside the housing to protect the load sensor when not in use.