FireBoard Thermometer Threaded Smoker Probe — Frequently Asked Questions
What is the FireBoard Threaded Smoker Probe?
The threaded smoker probe is a temperature sensor designed to screw directly into a smoker or grill via a **½″ NPT** threaded port. It is intended to replace analog dial gauges or be custom-installed for accurate digital temperature readings.
What are its specifications (range, dimensions, wiring)?
• Temperature range (thermistor version): 0 to 572 °F (–18 to 300 °C)
• Probe length: 2¼″ (around 57 mm)
• Probe diameter: ⅛″ (4 mm)
• Threading: ½″ NPT tapered thread (no nut required)
• Cable: approx. 6 ft, with a 2.5 mm audio connector for FireBoard interface
How do I install and use the probe?
1. Turn off heat or let the smoker cool for safer handling.
2. Screw the probe directly into a ½″ NPT port (such as the port used by an analog gauge) until the tapered thread seals securely (thread sealant optional).
3. Plug the 2.5 mm audio connector into a FireBoard ambient/smoker input port.
4. In your FireBoard software or firmware, set the probe type (e.g. thermistor) if required.
5. Monitor ambient chamber temperature (not food temperature) to guide your cooking adjustments.
What are the advantages and limitations?
Advantages:
• Direct mounting into existing ½″ NPT ports simplifies installation.
• Provides accurate, real-time ambient temperature control and data logging with your FireBoard system.
• More stable and reliable than many aftermarket dial gauges.
Limitations / cautions:
• The thermistor version is limited to max 572 °F — readings above that may be invalid or damage the sensor.
• Ensure the probe tip is positioned away from flame or direct contact with hot surfaces for accurate ambient readings.
• Use proper thread sealing techniques if needed to avoid leaks.
• Cable length and routing may affect performance — avoid sharp bends or tension on the connector.
