$95.00 $85.50
  • 0560 0103
  • Usually ships in 1-2 weeks



  • Compact 4.33" size (11 cm)
  • Ideally suited to core temperature measurements
  • IP55 protection
  • Non-slip rubber coated surface
  • Large, illuminated readout display
  • Operates on (2) 3 V button cell batteries
  • 300 hour battery life
  • ABS/TPE/Metal housing


The Testo 103 is a waterproof folding thermometer which offers handy, practical and strong support when carrying out temperature measurements. The Testo 103 thermometer is ideally suited to core temperature measurement thanks to a robust metal folding joint and a long, stable measurement probe. The thermometer features IP55 class protection and can be used under all conditions. It can also be easily cleaned under running water and has a rubber-coated surface for non-slip handling. The Testo 103 has a large, illuminated display for easy and error-free viewing of measurement data under poor lighting conditions.

Testo 104 Digital Thermometer Specifications

Feature Testo 103
Measuring temperature range -58 to 527°F
Accuracy ±1.8°F (212 to 527°F)
±0.9°F (-22 to 211.82°F)
±1.8°F (-58 to -22.18°F)
Resolution 0.1°F
Battery (2) 3 V button cell / 300 hr battery life
Material/Housing ABS