TM500 - Thermometer Extech - Free user manual and instructions
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| Product Type | Digital Thermometer |
| Brand | Extech |
| Model | TM500 |
| Temperature Measurement Range | -200°C to 1372°C (K-type); -200°C to 1100°C (J-type) |
| Thermocouple Input | Type K or J |
| Number of Inputs | 1 |
| Resolution | 0.1°C / 0.1°F |
| Accuracy | ±0.1% of reading + 0.7°C |
| Display | 3.5-digit LCD |
| Measurement Functions | Data Hold, Min/Max recording, Relative Difference |
| Auto Power Off | Yes, after 10 minutes |
| Battery Power | 9V alkaline battery |
| Battery Life | 100 hours typical |
| Dimensions | 6.4 x 2.1 x 1.1 inches (163 x 53 x 28 mm) |
| Weight | 3.5 oz (100 g) including battery |
| Probe | Type K bead probe included |
| Operating Temperature | 0°C to 50°C (32°F to 122°F) |
| Storage Temperature | -10°C to 60°C (14°F to 140°F) |
| Cleaning | Wipe with a soft damp cloth; do not use solvents |
| Safety | Do not operate near explosive gases; avoid contact with bare thermocouple wires |
| Repairability | No user-serviceable parts; battery replacement only |
| Included Accessories | Type K probe, 9V battery, manual |
| Certifications | CE, RoHS |
Frequently Asked Questions - TM500 Extech
What type of thermocouple does the Extech TM500 accept?
The TM500 accepts K-type and J-type thermocouples via a standard thermocouple input jack.
What is the temperature range of the TM500?
The temperature range is -200°C to 1372°C for K-type probes and -200°C to 1100°C for J-type probes, with a 0.1 degree resolution.
How do I switch between Celsius and Fahrenheit?
Press the °C/°F button on the front panel to toggle between Celsius and Fahrenheit units. The selected unit appears on the display.
How do I replace the battery?
To replace the battery, turn off the meter, remove the screw on the back cover, and open the battery compartment. Replace the 9V alkaline battery and close the cover securely.
How do I use the Data Hold feature?
Press the HOLD button to freeze the current reading on the display. Press it again to release the hold and resume live measurements.
What does the Min/Max function do?
The MIN/MAX function records and displays the highest and lowest readings since activation. Press the MIN/MAX button to cycle through MAX, MIN, and current reading.
How should I clean the thermometer?
Clean the outer surfaces with a soft, damp cloth. Do not use abrasive materials or solvents. Remove the probe before cleaning the meter body.
Can I use the thermometer with other types of probes?
Yes, the TM500 accepts any standard K-type or J-type thermocouple with a compatible plug. For best accuracy, use the included bead probe or a probe suitable for your application.
Is the Extech TM500 waterproof?
The TM500 has a splash-proof and rugged housing for industrial use, but it is not fully waterproof. Do not submerge the meter or the probe connection in liquids.
What is the auto power off time?
The meter automatically powers off after 10 minutes of inactivity to save battery life. You can disable this feature by holding the HOLD button while turning on the unit.
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USER MANUAL TM500 Extech
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Product information
Brand : Extech
Model : TM500
Category : Thermometer