1. Product Overview
The Taylor Digital Panel Mount Thermometer is designed for precise temperature monitoring in various environments, including laboratories, factories, and food service settings. It accurately measures both air and liquid temperatures across a wide range, providing quick and reliable results.

Figure 1: Front view of the Taylor Commercial Digital Panel Mount Thermometer, showing the main unit, display, and attached temperature probe with its cable.
- Accurate Temperature Measurement: Measures temperatures from -40° to 150° Celsius (-40° to 300° Fahrenheit).
- Waterproof Probe: Features an immersible air/liquid temperature probe connected by a 10-foot cable.
- Fast Response: Provides quick, accurate results with a 10-second sampling rate.
- Commercial Grade Use: Suitable for demanding professional environments.
2. Package Contents
Verify that all items are present in the package before proceeding with setup.
- Taylor Commercial Digital Panel Mount Thermometer Unit (Model 9940N)
- Immersible Air/Liquid Temperature Probe with 10-foot Cable
- 1 x AAA Battery

Figure 2: The thermometer unit alongside its temperature probe and coiled 10-foot cable, illustrating the components included in the package.
3. Setup
3.1 Battery Installation
- Locate the battery compartment on the back of the thermometer unit.
- Open the battery compartment cover.
- Insert one (1) AAA battery, ensuring the polarity (+/-) matches the diagram inside the compartment.
- Close the battery compartment cover securely.
3.2 Probe Connection
- Connect the probe's jack firmly into the designated port on the side of the thermometer unit.
- Ensure the connection is secure to prevent intermittent readings.
3.3 Mounting the Unit
The thermometer is designed for panel mounting. Use appropriate screws (not included) through the mounting holes on the unit to secure it to a panel or surface. Ensure the mounting location allows for clear viewing of the display and proper routing of the probe cable.
4. Operating Instructions
4.1 Power On/Off
The thermometer typically powers on automatically once the battery is installed and the probe is connected. There is no dedicated power button. The display will show the current temperature.
4.2 Taking a Temperature Reading
- Position the immersible temperature probe into the air or liquid you wish to measure. Ensure the probe tip is fully submerged or adequately exposed to the environment.
- Allow a few seconds for the reading to stabilize. The thermometer has a 10-second sampling rate for quick updates.
- Read the temperature directly from the digital display.
4.3 Temperature Units (Fahrenheit/Celsius)
The thermometer displays temperature in both Fahrenheit (°F) and Celsius (°C). Refer to the unit's display for the active measurement unit. (Note: Specific unit switching instructions are not provided in the product description. Consult the device itself for any physical buttons or switches.)
5. Maintenance and Care
5.1 Cleaning
- Wipe the thermometer unit clean with a soft, damp cloth. Do not immerse the main unit in water.
- The temperature probe is waterproof and can be cleaned with mild soap and water. Rinse thoroughly after cleaning.
- Avoid using abrasive cleaners or solvents, as these may damage the display or casing.
5.2 Battery Replacement
When the display becomes dim or the unit stops functioning, it is time to replace the AAA battery. Follow the battery installation steps in Section 3.1.
5.3 Storage
Store the thermometer in a cool, dry place when not in use. Avoid extreme temperatures or direct sunlight, which can affect battery life and unit performance.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No display or dim display | Dead or low battery; Incorrect battery installation. | Replace the AAA battery. Ensure battery is inserted with correct polarity. |
| Inaccurate temperature readings | Probe not properly connected; Probe damaged; Extreme environmental conditions. | Ensure probe is firmly connected. Inspect probe for visible damage. Allow unit to acclimate to stable conditions. |
| "LO" or "HI" displayed | Temperature is outside the measurable range (-40°F to 300°F). | Move the probe to an environment within the specified temperature range. |
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | 9940N |
| Temperature Range | -40° to 150° C (-40° to 300° F) |
| Accuracy | +/- 1.8° F (14° to 212° F); +/- 3.6° F (outside this range) |
| Sampling Rate | 10 seconds |
| Probe Type | Immersible Air/Liquid Temperature Probe |
| Cable Length | 10 feet |
| Power Source | 1 x AAA Battery (included) |
| Product Dimensions | 3.7 x 3 x 1.4 inches |
| Weight | 3.84 ounces |
| Material | Plastic (Outer Material) |
| Special Feature | Waterproof Probe |
| Care Instructions | Wipe Clean |
8. Warranty Information
This Taylor Commercial Digital Panel Mount Thermometer is backed by a One (1) Year Limited Warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use. Please retain your proof of purchase for warranty claims.
For detailed warranty terms and conditions, please refer to the documentation included with your product or contact customer support.
9. Customer Support
For any questions, technical assistance, or warranty inquiries, please contact Taylor's USA-based Marketing, Engineering, and Customer Service teams. Contact information can typically be found on the product packaging or the official Taylor website.
Website: www.taylorusa.com
Phone: Refer to the official website for current contact numbers.







