Two input digital thermometer supplied with 2 pipe clamp probes 2 wire air probes zip pouch carry case and thermometer instructions, 

This digital thermometer allows you to use two type k thermocouple probes simultaneously,the thermometer can be switched to show probe T1 or T2 temperature or the difference between probe T1 and T2, this allows plumbers for example to measure flow and return the drop across radiators or temperature rise and fall of two items to be measured.

                                                         

                                                                                                  

Features:
1. The electrical compensation function provide the compensation to the thermocouple error so as to improve the overall precision.
2. To measure the thermocouple of J, K, T, E, N, S and R type.
3. Unit Celsius and Fahrenheit unit.
4. Human centered design, easy operation.
5. Double display with backlight shows T1/T2 and combination of T1 and T2.

Functions:
Data hold and auto power off.
Max./ min./ average value measurement.
LCD backlight.
Celsius and Fahrenheit unit selectable.
Dual channel input.

Specifications:
Measuring range:
J-type:-210℃ to 1200℃ (-346℉ to 2192℉ )
K-type:-200℃ to 1372℃ (-328℉ to 2501℉ )
T-type:-250℃ to 400℃ (-418℉ to 752℉ )
E-type:-150℃ to 1000℃ (-238℉ to 1832℉ )
N-type:-200℃ to 1300℃(-328℉ to 2372℉ )
R-and S-type: 0℃to 1767℃ (32℉ to 3212℉ )
Resolution:
0.1℃/℉ <1000 degrees
1.0℃/℉ ≥1000 degrees
Accuracy: ±0.1%+0.6℃
Input: Bi-channel input

General Characteristics:
Operating Temperature: 0℃ to 40℃
Storage Temperature: - 10℃ to 50℃
Power supply: 3 * 1.5V AAA batteries  (included)
Item Size: 14 * 7 * 3cm / 5.5 * 2.7 * 1.2in
Item Weight: 125g / 4.4oz
Package Size: 18 * 10 * 4cm / 7.2 * 4.2 * 1.5in
Package Weight: 200g / 7oz

Suitable for pipes from Ø6 to Ø30mm