For over a century, U.S.-based Triplett Test Equipment continues to be on the leading edge of specialized testers. Whether supplying vital test equipment to the U.S. Signal Corps during WWII, or providing the railroad industry with essential testers to ensure the safety of their crews and the public, Triplett prides itself in developing innovative, reliable, and durable test equipment for every technician. In 1955 Triplett launched the renowned Model 310 hand-held analog volt/ohm meter, which is still manufactured and highly sought-after today. In 2007, Triplett was acquired by Jewell Instruments and has since expanded its product portfolio beyond analog meters and has entered into new industries including CCTV/Security, Networking & Cable Testing, Electrical & Industrial and more recently in Environmental Test & Measurement products.