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 temperature monitoring equipment plays a vital role in optimizing composting processes, ensuring optimal conditions for microbial activity, pathogen reduction, organic matter breakdown, odor control, process monitoring, and regulatory compliance. Tel-Tru’s temperature monitoring devices, dial thermometers, digital thermometers, SMART wireless remote temperature monitoring systems, and thermometer calibration units enable composter to have precise control of compost pile temperatures, fostering the growth and activity of thermophilic bacteria responsible for organic matter decomposition.
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.
Or you can reset the filters to find a close alternate in-stock item.
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By maintaining temperatures within the optimal range of 110°F to 160°F (43°C to 71°C), compost operators can accelerate microbial activity, expediting the composting process. Elevated temperatures generated within compost piles monitored by Tel-Tru instruments contribute to the elimination of pathogens and weed seeds present in organic waste materials. This heat effectively sterilizes the compost, ensuring that the final product is safe for use in agricultural and horticultural applications.
By closely monitoring temperatures, compost operators can ensure the rapid decomposition of complex organic compounds, resulting in the production of stable humus-rich compost that enhances soil fertility and structure.
By maintaining optimal temperature conditions, compost operators can promote the breakdown of odorous compounds, mitigating foul odors associated with composting operations and improving overall air quality.
Tel-Tru temperature monitoring devices allow compost operators to continuously monitor temperature levels throughout the composting process. This real-time data enables operators to assess the progress of composting, identify areas of insufficient or excessive heat generation, and make timely adjustments to optimize microbial activity and decomposition rates.
Tel-Tru temperature monitoring equipment helps composting facilities comply with regulatory requirements by ensuring that composting processes meet specific temperature thresholds and monitoring protocols. By maintaining accurate temperature records, compost operators can demonstrate compliance with environmental regulations and ensure the safety and quality of the final compost product.