1. Introduction
The Supco ST1236-31 Sure Temp Thermometer is designed to accurately monitor internal temperatures within refrigerated environments such as cases, reach-in coolers, and walk-in coolers. This device provides a reliable indication of product temperature, ensuring compliance with food service criteria.
2. Product Features
- Simulates the internal temperature of refrigerated or frozen products.
- Meets food service criteria, including HACCP standards.
- Includes a bracket and screw for straightforward mounting.
- Waterproof design for durability and easy cleaning.
- Analog display for clear and immediate temperature readings.
3. Package Contents
Verify that all items are present in the package:
- Supco ST1236-31 Sure Temp Thermometer (1 unit)
- Mounting Bracket (1 unit)
- Mounting Screw (1 unit)
4. Setup and Installation
The thermometer is designed for easy installation within your refrigerated unit.
- Select Location: Choose a location inside the refrigerated unit that provides an accurate representation of the product temperature. Avoid placing it directly in front of air vents or near the door seal, which may give inaccurate readings.
- Mounting: Use the provided bracket and screw to securely attach the thermometer to an interior wall or shelf of the refrigerator or freezer. Ensure the display is easily visible for regular monitoring.
- Initial Placement: Allow the thermometer to stabilize for at least 30 minutes after placement before taking the first reading. This ensures it has reached the ambient temperature of its surroundings.

Image 1: Supco ST1236-31 Sure Temp Thermometer. This image shows the thermometer with its analog dial clearly visible, indicating temperature readings in both Fahrenheit and Celsius. The green and white casing, along with the mounting bracket, are also depicted.
5. Operation
The Supco ST1236-31 is an analog thermometer that provides continuous temperature monitoring.
- Reading Temperature: Observe the needle on the analog dial to read the current temperature. The dial displays temperatures in both Fahrenheit (°F) and Celsius (°C).
- Simulated Product Temperature: This thermometer is designed to simulate the internal temperature of refrigerated or frozen products, rather than just the air temperature. This provides a more accurate assessment of food safety conditions.
- Monitoring: Regularly check the thermometer to ensure temperatures remain within safe and desired ranges for your stored products.
6. Maintenance and Care
Proper maintenance ensures the accuracy and longevity of your thermometer.
- Cleaning: The thermometer is waterproof. To clean, simply wipe the unit with a damp cloth. For sanitation purposes, a mild, food-safe cleaning solution can be used. Avoid abrasive cleaners or harsh chemicals.
- Inspection: Periodically inspect the thermometer for any signs of damage or wear. Ensure the mounting is secure.
- Storage: When not in use, store the thermometer in a clean, dry place.
7. Troubleshooting
This analog thermometer is designed for simplicity and reliability. Should you encounter any issues, consider the following:
- Inaccurate Readings:
- Verify the thermometer's placement. Ensure it is not obstructed and is located in an area representative of the product temperature.
- Allow sufficient time for the thermometer to stabilize after changes in environment or initial installation.
- Compare the reading with another calibrated thermometer if available, to confirm accuracy.
- Physical Damage: If the thermometer's casing or dial is visibly damaged, its accuracy may be compromised. Replacement may be necessary.
8. Specifications
| Feature | Detail |
|---|---|
| Brand | Supco |
| Model Name | ST1236-31 |
| Display Type | Analog |
| Temperature Range | -40°F to 100°F (-40°C to 38°C) |
| Response Time | 500 Milliseconds |
| Reusability | Reusable |
| Indoor/Outdoor Usage | Indoor |
| Outer Material | Plastic |
| Product Dimensions | 1.25 x 1.25 x 4 inches |
| Item Weight | 12 ounces |
| Special Feature | Waterproof |
| Specification Met | HACCP |
9. Warranty and Support
For information regarding warranty coverage or technical support for your Supco ST1236-31 Sure Temp Thermometer, please refer to the documentation included with your purchase or contact Supco customer service directly. Contact details can typically be found on the manufacturer's official website.