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Company History

Rochester Sensors – Always Innovating, Never Imitating.

In 1913, the company began operations with their first liquid level gauge as “Rochester Manufacturing” located in Rochester, New York.

In 1958, Gas Equipment Company, a distributor of propane-related parts and supplies, purchased Rochester’s propane gauge line and moved it to Dallas, Texas creating “Rochester Gauges”. Rochester Gauges was successful with the propane gauge line and later expanded and acquired the remaining product lines from Rochester Manufacturing and expanded its manufacturing capabilities into Mexico, Belgium and China.

In 2022, Rochester Gauges changed its name to “Rochester Sensors”. The name change was prompted by organic growth and acquisition of sensor companies serving multiple markets with capacitive, radar and ultrasonic technologies. As a result, Rochester now has additional facilities in UK and Ireland.

In 2023, corporate headquarters and Dallas manufacturing relocated to a new facility in Coppell, TX.

In 2025, Rochester was purchased by Amphenol Corporation (NYSE: APH), one of the world’s largest providers of high-technology interconnect, sensor and antenna solutions.

Today, Rochester continues to operate as a stand-alone business within Amphenol while retaining its name “Rochester Sensors” and headquarters in Coppell, Texas, USA, with manufacturing facilities in Coppell, Texas USA; Mexico City, Mexico; Brussels, Belgium; Warwick, UK; Shannon, Ireland; and Shanghai, China.

As one of the first companies to develop a liquid level gauge for the propane industry, Rochester continues to be a leading innovator not only in the commercial and residential propane market but also in remote monitoring of bulk and transport tanks of fuels, lubes and chemicals. Rochester technologies also enable liquid level measurements of mission-critical fluids & fuels, including gasoline, diesel, coolant, oil, water and commercial refrigerants.

Rochester products are used in many different applications across the world, such as construction and agriculture equipment, power generators, automotive, marine engines, forklifts, RVs, lawn and garden equipment, personal aircraft, compressors, and electric vehicles (EVs). Rochester’s products include liquid level gauges, liquid level sensors, liquid level senders, liquid level switches, aircraft fuel and engine instrumentation, diaphragm temperature sensors, pressure sensors, bimetal thermometers-electrical system safety disconnect switches, and flow sensors.

Many features of gauges and sensors used in various industries today can be contributed to innovations developed by Rochester over the last 100 years.

Innovations Through the Years

2024 – Remote-Ready Wireless BLE Dial for JR Gauges

2024 – Remote-Ready Wireless BLE Propane Capacitive Probe (SureSense)

2023 – Acquisition of Tekelek (Now Rochester Sensors Europe)

2022 – Public announcement of new name, logo and brand identity

2021 – Acquisition of assets of Concept Technology

2019 – Acquistion of FPI Sensors (Now Quick Turn)

2019 – Acquisition of Fozmula (Now Rochester Sensors UK Limited)

2019 – Guided Wave Radar – patented

2018 – Remote-Ready Wireless BLE Dial for Magnetel Gauges (e-Dial) – patented

2018 – R3T Magnetel Bluetooth Transmitter and Phone App

2016 – Lighted dials for Magnetel

2016 – Anodized Aluminum Heads for Propane

2016 – Modular Tube Fuel Pick and Return Reed Switch Probes – patented

2016 – AdBlue (DEF) tank gauge

2015 – H.E. Optoswitch transmitter (overfill protection)

2015 – Slide sender – patented

2014 – Conductive Plastic Spiral Gauges

2014 – Cryogenic Capacitance Probe with Patented High Pressure Sealing

2014 – Internally Grounded Reed Switch Probes

2014 – Magnetel 1” NPT (Rotogage replacement)

2013 – CSU 3.0 – Compact Survey Unit (3rd gen)

2012 – Adjustable Rough Rider Magnetel

2012 – MD Spiral 1.5” BSP

2012 – Reed array Fuel Level Senders– patented

2011 – Adjustable Fuel tank gauge

2011 – 4” Angle Mount R3D “Easy View” Dial – Patent Pending

2008 – Gauge OPD – Patented

2005 – R3G Domestic Gauge – Patented

2002 – R3D Remote Ready Dial – Patented

1999 – Composite Gauge for RV ASME Tanks – Patented

1998 – Spring-Hinged Float Arm – Patented

1997 – 1” & 3/4” Rotogauge Replacement – Patented

1997 – Composite Forklift Gauge – Patented

1990 – Direct Read Cryogenic Gauge for Cryogenic Cylinders

1988 – Low Level Monitor for Domestic Tanks & Cylinders

1986 – Adjustable Domestic & Motorfuel Gauges – Patented

1985 – Plastic Dial

1978 – 1st Threaded Head Design for ASME and DOT

1977 – ¾” Gauge

1969 – RoughRider Magnetel

1964 – Stainless Steel Senior Head

1963 – Magnetel Transmitter

1963 – TwinSite Direct & Remote Reading Dials

1962 – Magnetel Permanent Gasket

1961 – Fluorescent 4” Dial

1958 – Replaceable Dials

1955 – Magnetel Gauge