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An industrial thermometer gives a temperature reading right at the equipment, on a dial or a digital display, without a control system. Instranova builds bimetal, digital and sanitary versions for process, plant and hygienic service. Pick the type by how you read it and what it touches; the pages below give real specifications and a quote checklist for each.
Our industrial thermometers
A bimetal thermometer is a rugged, power-free dial; a digital thermometer adds a clear readout and optional output; a sanitary thermometer carries a clamp fitting for clean-in-place lines.
Bimetal ThermometerPower-free dial gauge for local reading, -80 to 500 C.
Digital Temperature GaugeLCD readout in F or C, battery or loop powered, optional 4-20 mA.
Sanitary ThermometerTri-clamp dial for food, dairy and pharma lines.
Choosing an industrial thermometer
Decide how you need to read it and what the process demands, then the connection.
| Your need | Pick | Why |
|---|---|---|
| Rugged local reading, no power, lowest cost | Bimetal | Mechanical dial, nothing to power or fail |
| Easy-to-read display, optional signal output | Digital | Clear LCD, can also send 4-20 mA to a PLC |
| Food, dairy or pharma with clean-in-place | Sanitary | Tri-clamp, no threads or crevices to harbor product |
A thermometer reads locally. Where you need the temperature in the control room, pair it with a temperature transmitter and an RTD or thermocouple, and protect the sensor with a thermowell.
FAQ
What is an industrial thermometer?
An industrial thermometer is a temperature instrument built for plant and process use, reading at the equipment on a dial or digital display rather than through a control system. It is rugged, often power-free, and made to mount into a pipe or tank with a threaded or clamp connection, frequently inside a thermowell.
What are the four types of thermometers?
In industry the common types are bimetal (a coiled metal strip that moves a pointer), liquid-filled or gas-actuated dial, digital (an electronic sensor with an LCD), and the RTD or thermocouple sensor that feeds a remote transmitter. Instranova covers bimetal, digital and sanitary dial thermometers here, and the sensor elements on the temperature sensors page.
What thermometer do plant technicians use?
For a quick local check, technicians rely on a bimetal or digital dial thermometer mounted at the equipment. For monitoring and control they use an RTD or thermocouple wired to a transmitter. The two work together: the dial for the walk-around reading, the sensor and transmitter for the logged, controlled value.
Request a quote
Quote checklist, send these five points: the type (bimetal, digital or sanitary); the temperature range; the dial size or display; the stem length and process connection; and whether you need an electrical output or a hygienic fitting. Tell us the application and we configure one unit, not a shelf part.
Written and technically reviewed by the Instranova engineering team, last reviewed 2026-06-21 (AI-assisted drafting). Based on the Instranova thermometer datasheets plus field experience across process, plant and hygienic service. Questions? Reach our application engineers.