1. Display: 3 1/2 digit LCD with maximum reading of 1999
2. Display size: 51 x 26mm
3. Celsius and Fahrenheit selectable
4. 2 channel temperature display separately
5. 2 channels temperature difference display
6. Data hold function for easy reading
7. Input protection: 60V DC or 24V AC maximum input voltage on any combination input pins
8. Low battery indication
9. Power source: 1* 9V Battery (not included)
10. Reading rate: 2.5 times per second
