Fieldpiece Pocket Digital Thermometer easily fits in a shirt pocket

Features & Applications:
The Fieldpiece Pocket Knife Style Digital Thermometer folds in and out just like a pocket knife. The 180° of probe rotation allows for various applications. Poke it through a soft duct or hang it in a grille.
Features:

* Easily hangs from vent, register, or thermostat
* Pull out rod just like you would a pocketknife
* Grooves hold rod at any angle
* Easily hangs from flex duct
* Rod folds away; no sleeve to lose
* ° C or ° F
* MIN/ MAX function
* Hold function
* Auto off after 10 minutes

Spec Summary:

Battery: LR44 ( included)
Range: -58 to 392° F
Accuracy: ± 3.6° F ( -58 to -4° F)
± 1.8° F ( -4 to 302° F)
± 5.4° F ( 302 to 392° F)
Resolution: 0.1° F