These gauges are made to our exacting specifications. The Timney tension scale gives accurate, consistent pull weights from 8 oz to 10 lbs. and is calibrated in Kg weights as well. It includes a tattle-tail indicator and wide hook, and is compact and easy to store with your gear. Also available in 1 lb to 25 lb increments so you can test your original factory trigger.
Why Timney? They have a life-time guarantee on their triggers.