Checkline Gigasense RTMe [RTME-20T] Rope Tension Meter, 20 Ton / 200 Kn / 44,000 lb With Calibration For 1 Wire Size Max Cable Diameter - 1.5" / 38mm. The RTMe cable tension meter is specially designed for measuring tension in cables such as guy wires, support cables, and electrical conductors. The RTMe can be placed directly on the cable for real-time tension measurement and guidance for adjustment. RTMe operation is simple, clip it to the rope to be tested and use the large hand screw to deflect the rope to a fixed angle. The resultant force will then affect the load cell and it will measure the tension in the wire rope. The tension is in kN, tonnes, lbs, DaN, USt, and other common units.