This instrument, the WR50 Winding Resistance Meter, is precision-made, and built to stand up to the harsh environments of field testing. Get a FREE set of 10M extension leads with your WR50 for our 20th Anniversary Celebration Event. This offer is only good for P.O.’s received between June 1st and 30th, 2017. Plus, every new Raytech instrument sold this year also comes with 5 FREE certifications (1 per year, excluding shipping). Call 888 484 3779 to order your WR50 Winding Resistance Meter while supplies last!