Toptronic Digital Earth Resistance Tester • Earth voltage detection • Rugged construction • Auto off • Data hold • 2&3 wire testing • Batteries included • All Test leads included • Pegs included Model Specification: · Dimensions (mm): 170(L) x 165(W) x 92(H) · Weight: 1000g · Power Source: 8x 1.5V AA Batteries · Accessories: Temp bead probe