44550: Pocket Humidity/Temperature Pen

Built-in sensors provide simultaneous readings of Relative Humidity and Temperature 

• Humidity: 20 to 90%RH (±5%RH)
• Temperature: 14 to 122°F or -10 to 50°C
• Accuracy: ±5%RH; ±2°F, ±1°C
• Max/Min with ''Clear'' function