Accurately measure humidity and temperature in your work area with this probe from Testo. Thanks to its small diameter of 12mm, it's a practical choice for taking readings in tight spaces such as heat pipes and ventilation ducts. As it's Bluetooth-compatible, you don't need a wired connection to transmit readings to your measuring instrument, giving you greater freedom of movement.

• Light weight of 165g for ease of handling
• Broad temperature measurement range of -20°C to +70°C for use in demanding environments
• Long battery life of 140 hours for long-term performance
• Compatible with measurement instruments in the 440 series for ease of use

• Food processing plants
• Laboratories
• Cleanrooms

This probe has an accuracy of ±0.5°C for temperature readings and ±2% for relative humidity measurements between 5 and 90%RH, so you can rest assured you'll get accurate results.