tone generators, inductive amplifiers, tone probes, tone & probe kits, loop verifiers, wire finders, wiremap testers, load coil detectors, circuit locators, fault meters, cable locators, valve locators, telephone test sets, butt-in test sets, fiber optic testers, optical loss meters, breakout boxes, interface testers, power meters, light sources

tempo is an international communications group whose member companies bring together some of the best-known names in the business of telecom and datacom testing equipment.