1. Product Overview
This manual provides instructions for the installation, operation, and maintenance of the BISONCOOK temperature gauge replacement parts. These gauges are designed to replace existing temperature gauges on compatible Masterbuilt propane smokers and charcoal grills, ensuring accurate temperature monitoring during cooking.
The package includes two (2) temperature gauges, offering a temperature range of 50°F to 700°F. They are designed for outdoor use and are reusable.

Figure 1: BISONCOOK Temperature Gauge (2-Pack) with indicated temperature range.
2. Compatibility
These replacement temperature gauges are compatible with the following Masterbuilt models:
- Masterbuilt MB20051311 Propane Smoker
- Masterbuilt MB21050813 Propane Smoker
- Masterbuilt MPS 230S Propane Smoker
- Masterbuilt MB20040722 Portable Charcoal Grill
- Replacement for Model #: 9905180016

Figure 2: Example of temperature gauge placement on a Masterbuilt smoker, highlighting compatible models.
3. Installation Instructions
The installation process for the BISONCOOK temperature gauge is designed to be simple and straightforward, often described as "plug and play."
- Preparation: Ensure your smoker or grill is completely cool and turned off before beginning the installation. Remove any existing temperature gauge by unscrewing it from the unit.
- Placement: Insert the stem of the new BISONCOOK temperature gauge into the designated opening on your smoker or grill.
- Secure: Use the provided nut or wingnut on the back of the gauge to secure it firmly in place. Hand-tighten until snug, but do not overtighten.

Figure 3: Visual guide for replacing the temperature gauge on a grill.
For visual assistance, you may find installation videos on platforms like YouTube by searching for "Masterbuilt smoker thermometer replacement" or similar terms.
4. Operation
Once installed, the temperature gauge will display the internal temperature of your smoker or grill. The gauge has a response time of approximately 0.5 seconds, providing near real-time temperature readings.
The temperature range displayed is from 50°F to 700°F. Monitor this gauge to maintain the desired cooking temperature for your food.
5. Maintenance
To ensure the longevity and accuracy of your temperature gauge, follow these simple maintenance guidelines:
- Cleaning: Wipe the exterior of the gauge clean with a soft, damp cloth as needed. Avoid using abrasive cleaners or harsh chemicals that could damage the display or casing.
- Storage: When not in use for extended periods, ensure the smoker or grill is stored in a dry environment to protect the gauge from extreme weather conditions.
6. Troubleshooting
If you encounter issues with your temperature gauge, consider the following:
- Inaccurate Readings: If you suspect the gauge is providing inaccurate temperature readings, it is recommended to cross-reference it with another known accurate thermometer. Variations can occur, and if significant discrepancies are observed, contact customer support.
- Loose Installation: Ensure the gauge is securely fastened. A loose connection can sometimes affect readings or stability.
7. Specifications
| Feature | Detail |
|---|---|
| Brand | BISONCOOK |
| Model Name | 9905180016 |
| Compatible Models | Masterbuilt MB20051311, MB21050813, MPS 230S, MB20040722 |
| Temperature Range | 50°F - 700°F |
| Response Time | 0.5 seconds |
| Unit Count | 2.0 Count |
| Outer Material | Plastic |
| Display Type | Analog (Dial) |
| Product Care | Wipe Clean |
| Indoor/Outdoor Usage | Outdoor |
| Item Weight | 2.39 ounces |
| Package Dimensions | 2.91 x 2.24 x 1.93 inches |
| UPC | 793101884227 |
8. Customer Support
For any questions regarding compatibility, installation, or product performance, please do not hesitate to contact BISONCOOK customer support. You can reach us via email or through the Amazon message system.
We aim to respond and assist you within 24 hours to ensure your satisfaction.