other IET Labs Default sorting Sort by popularity Sort by latest Sort by price: low to high Sort by price: high to low View: 12 24 All Quick View Sale! Quick View IET Labs, otherIET Labs Resistance Substitution Box, Model RS-201, 0.1% Accuracy, Size: 3.2″ x 3.1″ x 2.2″ Online Sale $429.95 Original price was: $429.95.$85.99Current price is: $85.99. Add to cart