Tel-Tru BQ225 Plain Dial Barbecue Thermometer — Frequently Asked Questions
What is the Tel-Tru BQ225 Plain Dial Barbecue Thermometer?
This is a rugged analog dial thermometer designed for barbecues, smokers, and custom pits. It has a 2″ dial face, a 2.13″ stem (approx .250″ diameter), and measures from 150-700 °F. It uses a ¼-20 bushing (with wing nut) and requires a ¼″ mounting hole.
What are the key specifications?
• Dial size: 2″ (black dial, white pointer)
• Stem: 2.13″ long, 0.250″ diameter
• Temperature range: 150 °F to 700 °F
• Mounting: ¼-20 threaded bushing with wing nut; needs ¼″ diameter hole
• Lens: Glass
• Made in USA (Tel-Tru brand)
How should I install and mount it?
Drill a ¼″ diameter hole in your grill or smoker wall or lid. Insert the stem, then secure it using the ¼-20 bushing and wing nut. Ensure the dial face is visible and straight. Because the thermometer is direct-reading (mechanical), it senses the temperature at the tip of the stem, which should sit in the air space (not touching metal or food).
How do I use it properly?
Once installed, just read the dial to monitor your cooking environment’s internal temperature. Use it to adjust airflow, fuel, or vents. It’s best used for long smokes or large pits where knowing chamber temperature is critical. Periodically compare it with a calibrated reference to check accuracy.
How should I maintain and clean it?
Wipe with a damp cloth (use mild soap if needed). Avoid submerging it or exposing it to water inside the stem. If soot or grease builds up on the glass, clean gently. Check the zero point or calibration occasionally, especially after exposure to high heat. Remove and inspect the wing nut and mounting for corrosion.
What are its advantages and limitations?
Advantages: reliable mechanical (no batteries), robust build, easy to read, good temperature range, made in USA.
Limitations: Not as precise as premium digital thermometers, possible calibration drift over time, the dial and stem will heat so care is needed when handling or adjusting, and the fixed stem length might limit use in deeper pits unless you choose longer stem versions.
