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

Tel-Tru RTD thermometer probe assemblies and RTDs with integrated compact transmitter are designed for precision temperature measurement in demanding industrial or sanitary environments. All Tel-Tru RTD thermometers use high quality platinum RTD sensors, which are known for accuracy and reliability. Tel-Tru RTDs are configurable with numerous options to satisfy the needs of a broad range of applications.

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.

Media Center

Discover Tel-Tru’s Digi-Tru® digital thermometers—built with ±0.2°C (±0.4°F) NIST-traceable accuracy, rugged stainless-steel construction, backlit display, min/max memory, and customizable options.
The Tel-Tru 250th Anniversary Dial Thermometer is making its way onto smokers across the country and the BBQ community has been sharing the results.
Forget ice baths and boiling water. The Tel-Tru Check-Set® delivers ±0.2°F lab-grade accuracy and generates FDA, FSMA, HACCP, and GFSI-compliant records — in minutes.

BBQ influencer Gorilla Joe (@gorillajoesbbq) highlights Tel-Tru in two reels. In the first, he unboxes a Tel-Tru care package containing our exclusive branded hat, apron, and the limited-edition 250th Anniversary BQ300 thermometer. In the second reel, Joe shares his excitement about the care package, praising the thermometer’s striking design, American-made

Temperature measurement is one of the most critical elements in food safety and cold-chain operations. Thermometers serve as the frontline defense against foodborne illness, spoilage, and regulatory violations by verifying cooking temperatures and ensuring refrigerated storage stays within safe limits.
Equip your teams with practical guidance to reinforce food safety training, close compliance gaps, and protect your operation from violations and shutdowns.
Hear from real pitmasters and grill enthusiasts why Tel-Tru dial thermometers are trusted for BBQ and smoking—reliable, accurate, all-stainless construction, and rock-solid performance.
See why Tel-Tru dial thermometers are the gold standard—handcrafted in the USA with premium materials, unmatched durability, and precision for food processing, biotech, HVAC, agriculture, and more.
Check out Tel-Tru’s Digi-Tel® battery-powered electronic thermometers—accurate to ±0.5°F, with a large backlit display, IP67 waterproof rating, long-lasting replaceable battery, and full customization.
Explore the Digi-Tel® loop-powered (4-20mA) thermometers from Tel-Tru—no batteries required, with ±0.5°F accuracy, large backlit display, IP67 waterproofing, and sealed 316L stainless stem.

On Page 12 of the USDA General Market Manual, the Tel-Tru Check-Set device is officially approved and recommended as a calibration device as outlined here: Check approved digital thermometers at least twice each week by using an approved digital calibration device (Tel-Tru). View Manual Related: Download the USDA Audit Planning

Experience convenient, methodical, and advanced data logging with the Tel-Tru Check-Set® Calibrator Data Logger.