Founded in Cleveland in 1970, Prime Instruments makes panel meters, gauges, fuel senders and related components for original-equipment manufacturers. Its instruments are built into equipment ranging from battery chargers and lift machinery to marine and welding applications, with custom case designs, dial artwork and electrical features handled as part of the company’s regular work. Prime also tests gauges through independent laboratories for the environments in which they will be used, and its products carry a two-year warranty.
Weschler InstrumentsFounded in Cleveland in 1941, Weschler Instruments remains a Hughes family company now led by its third generation. It is best known for Westinghouse-style analog switchboard meters and digital bargraph instruments, supporting utility and industrial customers worldwide from production and distribution facilities in Ohio and Florida.STRONGSVILLE, OH
Hoover Instrument Service, IncIncorporated in Ohio in 1947, family-owned Hoover Instrument Service supplies motor controls and industrial components while building custom control panels for pump, water and wastewater applications. The Mansfield company is also a UL508A-certified panel fabricator and operates a repair, calibration and certification lab for handheld test and measurement equipment. It has remained at its current Mansfield location since 1968 and carries Military Cage Code 21032.MANSFIELD, OH
Global Digital InstrumentsFor more than 30 years, Rochester-based Global Digital Instruments has manufactured compact electronic hour meters, gauges, and equipment control consoles, beginning with a run-time meter for the lawn and garden market. Its patented one-wire inductive hour meter remains a staple, while the company’s designs now serve more than 10 markets worldwide, including outdoor power equipment manufacturers. GDI also develops OEM-customized products and quantities, with its VersaGuard Advance console drawing on more than three decades of design and manufacturing experience.FAIRPORT, NY
Instrument Meter SpecialtiesSince 1987, Instrument Meter Specialties has supplied meters and supported them with in-house modification, repair, and calibration by experienced technicians. The Strongsville company is especially notable for custom and replacement panel meters, including reproduced dial artwork and logo printing, and it has been integrating operations with Weschler Instruments since 2023.STRONGSVILLE, OH