Thermapen ONE Black

Thermapen ONE moves almost at the speed of thought... allowing you to focus solely on the quality of your work.

More Accurate

With an improved accuracy specification of ± 0.5 °F (± 0.3 °C), you know your ultra-fast Thermapen ONE measurements are always accurate.

Brighter Backlight

The automatic backlight is brighter and the light sensor is more responsive to changes in ambient light.

5-Year Warranty

The newly designed robust, waterproof case has a 5-year warranty against defects.

With a newly designed battery compartment for easier access to user settings and all the great features you loved in the Thermapen Mk4.

• Auto-rotating display
• Motion-sensing sleep and wake mode
• Waterproof to IP67
• NIST-traceable calibration certificate

You need to buy ONE for yourself to understand the power of under-one-second performance.

• Range: -58.0 to 572.0°F (-49.9 to 299.9°C)
• Accuracy: ±0.5 °F (±0.3 °C) from -4 to 248 °F (-20 to 120 °C)
• Resolution: Factory set to 1° (user reconfigurable to 0.1°)
• Response Time: Full reading in 1 second (0.2 seconds time constant)*
• Probe: 4.3 L inch, High Performance Type K Thermocouple
• Display: 1 H x 1.54 W inch (25 H x 39 W mm) LCD, 360° rotatable, Intelligent backlight
• Sleep Mode: 10 to 180 seconds, user selectable (user reconfigurable to disable)
• Water Resistance: IP67
• Operating Range: –4 to 122°F (–20 to 50°C), maximum ambient limits of Thermapen case
• Battery: 1.5 volt AAA, 2,000 hours typical (without backlight)
• Dimensions: 6.1 L x 1.7 W x 0.74 D inch (156 L x 48 W x 19 D mm)
• Weight: 115 g
• Warranty: 5 years
• Certificate: Includes NIST-traceable calibration certificate

* Response time defined as five time constants for 99.3% of the actual temperature.