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


Tel-Tru is a leader in temperature monitoring instruments and equipment throughout the dairy supply chain to ensure optimal temperature management and enhance product quality, safety, and efficiency. Tel-Tru’s precise temperature monitoring instruments, remote monitoring devices, and thermometer calibration devices are crucial for maintaining optimal conditions at every stage of dairy production.
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.
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At the farm level, Tel-Tru’s temperature monitoring solutions help maintain a comfortable environment for dairy cows. Tel-Tru’s equipment allows for proper ventilation and cooling system adjustments and water management, vital to prevent heat stress which can affect milk yield and composition.
Rapid cooling of collected milk to below 40°F (4°C) is essential to prevent bacterial growth and spoilage. Tel-Tru’s temperature-controlled transport systems maintain this critical cold chain from the farm to the processing facility preserving milk quality.
During milk pasteurization, milk is heated to around 161°F (72°C) for 15 seconds to kill harmful bacteria. Our precise temperature imstruments ensure the effectiveness of this process without affecting the taste or nutritional value of the milk
In homogenization, maintaining specific temperature ranges prevents cream separation, ensuring milk fat is evenly distributed
In fermentation process for products like yogurt and cheese, precise temperature control is crucial for the growth and activity of beneficial bacteria for the desired texture and flavor of the final products
Temperature control below 40°F (4°C) for milk storage distribution – and lower temperatures for ice cream – prevents spoilage and extends shelf life. Cold storage facilities and refrigerated transportation systems, equipped with Tel-Tru’s advanced temperature monitoring devices, help maintain the cold chain and product loss.
Consumer safety is paramount, and proper temperature management throughout the dairy supply chain is essential for preventing the growth of harmful pathogens. Tel-Tru’s advanced temperature monitoring and control systems help the dairy industry achieve consistent product quality, extend shelf life, and safeguard consumer health.