Proform 66836 Mini Valve Spring Tester Digital, 0-700 lbs. Range

Here's the affordable, portable way to test springs. The hex-design body is very versatile: use it in a vise or an arbor press. The device is designed to test valve spring pressure ranging from zero to 700 pounds (or 318 kgs) with an indicating resolution of 2 pounds (or 1 kg). Additional features include peak hold, backlit display screen, and automatic shut off.