STP TH27B is an air conditioning test thermometer that is designed to help you diagnose and repair air conditioning problems. It features a large, easy-to-read display and a built-in probe that allows you to measure the temperature of the refrigerant in your air conditioning system. The thermometer is also equipped with a backlight that makes it easy to use in low-light conditions.

To use the STP TH27B, simply insert the probe into the refrigerant line and turn on the unit. The display will show the current temperature of the refrigerant. If the temperature is too high or too low, it could indicate a problem with your air conditioning system. You can then use the information from the thermometer to troubleshoot the problem and make repairs.

The STP TH27B is a valuable tool for anyone who owns or maintains an air conditioning system. It is easy to use and can help you diagnose and repair problems quickly and easily. If you are looking for an air conditioning test thermometer, the STP TH27B is a great option.

Here are some of the features and benefits of the STP TH27B:

• Large, easy-to-read display
• Built-in probe
• Backlight
• Accurate temperature readings
• Easy to use
• Affordable

If you are looking for an air conditioning test thermometer, the STP TH27B is a great option. It is easy to use and can help you diagnose and repair problems quickly and easily.

Here are some additional tips for using the STP TH27B:

• Make sure that the probe is inserted into the refrigerant line correctly.
• Clean the probe after each use.
• Store the thermometer in a cool, dry place.
• If you are not comfortable using the STP TH27B, take your car to a qualified mechanic.