United Scientific WDSET1 Wave Demonstrator Set with Two Helical Springs and Cotton String 25K Points Record Length Maximum

25K Points Record Length Maximum

It can be used to measure AC/DC voltage

It has a durable metal construction and powder coated protective finish

Input voltage: 104-127V

Width unit: 43 mm

United Scientific WDSET1 Wave Demonstrator Set with Two Helical Springs and Cotton String 25K Points Record Length MaximumUnited Scientific Supply WAVE DEMONSTRATOR SPRING SET (BOTH SPRINGS AND COTTON STRING) USS Set includes two helical springs. The long, narrow spring measures 3 4" x 72", and can be extended to 5 meters. The larger spring measures 3" x 4", and can be extended many times its length without distortion. Includes activity guide. Product Dimensions (L x W x H): 272 x 163 x 124 MM Product Weight: 1 LB