Digital Thermometers
Tel-Tru’s Digital Thermometers are designed to deliver reliable accurate readings in the toughest industrial environments. All models are built to order using our wide range of configurations, delivering customers exactly what they need.
Dial Thermometers
Tel-Tru designs and manufactures industrial thermometers and other quality industrial temperature instruments to improve quality and operational performance.
RTD Sensors
Check-Set® Thermometer Calibrators
Check-Set Calibrator Data Logger for traceable digital record keeping.
Check-Set Calibrator for fast, easy, and accurate verification.
Remo-Tel®
The Remo-Tel Industrial Temperature Monitoring System automates temperature data logging and provides a 24/7 online monitoring dashboard for industrial and commercial operations to help mitigate risk for product loss and system failure and improve productivity. The Remo-Tel System is ideal for a wide variety of processes including Refrigeration, Molding, Brewing and other extremely time sensitive temperature monitoring applications.
Thermowells
Thermowells for sanitary applications as well as thermowells that can be treated and documented to NACE standards. Thermowells are recommended for pressure, corrosive fluid, or high velocity applications. Produced using highest quality material and machined from solid bar stock for standard or high velocity requirements in a large selection of materials and coatings. Designed and manufactured to assure perfect alignment with the thermometer stem.
Glass Industrial
Our glass industrial thermometers are versatile and adjust-angle, with a lens front and red liquid fill. They are NIST calibrated and guaranteed accurate to ± one scale division.
Pressure Instruments

Digital Thermometers
Tel-Tru’s Digital Thermometers are designed to deliver reliable accurate readings in the toughest industrial environments. All models are built to order using our wide range of configurations, delivering customers exactly what they need.
Dial Thermometers
Tel-Tru designs and manufactures industrial thermometers and other quality industrial temperature instruments to improve quality and operational performance.
RTD Sensors
Check-Set® Thermometer Calibrators
Check-Set Calibrator Data Logger for traceable digital record keeping.
Check-Set Calibrator for fast, easy, and accurate verification.
Remo-Tel®
The Remo-Tel Industrial Temperature Monitoring System automates temperature data logging and provides a 24/7 online monitoring dashboard for industrial and commercial operations to help mitigate risk for product loss and system failure and improve productivity. The Remo-Tel System is ideal for a wide variety of processes including Refrigeration, Molding, Brewing and other extremely time sensitive temperature monitoring applications.
Thermowells
Thermowells for sanitary applications as well as thermowells that can be treated and documented to NACE standards. Thermowells are recommended for pressure, corrosive fluid, or high velocity applications. Produced using highest quality material and machined from solid bar stock for standard or high velocity requirements in a large selection of materials and coatings. Designed and manufactured to assure perfect alignment with the thermometer stem.
Glass Industrial
Our glass industrial thermometers are versatile and adjust-angle, with a lens front and red liquid fill. They are NIST calibrated and guaranteed accurate to ± one scale division.
Pressure Instruments

Ensure your thermometers are reading accurately. Water baths are prone to inconsistent results due to operator technique and process variation. The Check-Set Thermometer Calibrator eliminates that variability. Why Choose Check-Set?
Celebrating 110 Years of Precision Measurement Excellence. This special-edition Tel-Tru dial features a custom 110th Anniversary commemorative dial showcasing Tel-Tru’s American manufacturing heritage since 1916. Built with the legendary quality, accuracy, and durability Tel-Tru is known for, it’s the perfect upgrade for BBQ smokers, grills, and outdoor cooking enthusiasts.
If your filter selections require us to create a product to fit exact specifications, rest assured. For over 100 years we have built over 100,000 versions of our products. We will leverage that experience to build your product to exact specification with rapid turnaround using the RFQ results link.
$84.00 Original price was: $84.00.$40.00Current price is: $40.00.
$84.34 Original price was: $84.34.$40.00Current price is: $40.00.
$84.34 Original price was: $84.34.$40.00Current price is: $40.00.
$84.34 Original price was: $84.34.$40.00Current price is: $40.00.
$84.34 Original price was: $84.34.$20.00Current price is: $20.00.
The Check-Set series of thermometer calibrators verifies the calibration of your temperature sensing devices at multiple temperatures. Their accuracy also allows you to validate your temperature measuring devices at temperatures specific to your application.
The Check-Set series is an ideal temperature reference device for:
CFR Part 113 for low-acid canned foods.Government regulations surrounding temperature monitoring and testing in food and beverage processing are primarily governed by the U.S. Food and Drug Administration (FDA) under the Code of Federal Regulations (CFR), specifically 21 CFR Part 113 for low-acid canned foods. These measures ensure food safety by confirming that proper thermal processing conditions are consistently met, minimizing the risk of contamination and spoilage.
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The Check-Set® Thermometer Calibrator Data Logger and Check-Set® Thermometer Calibrator are designed for food safety, industrial processing, and temperature-sensitive industries where accuracy and compliance are non-negotiable.
The Check-Set® Thermometer Calibrator Data Logger provides traceability with cost-effective, reliable data logging, to meet FSMA compliance regulations while upholding the highest standards of performance and accountability.