The 550B digital pocket thermometer has a new protective boot with a built-in magnet and offers all the required features and ranges needed for today's HVAC applications including a water resistant ergonomic head for easy display readings. Housed in a hard case sleeve that also serves as a pocket clip, the stem can be slipped into the loop (built into the metal clip) to offer additional support or to insulate from the heat of the measured substance.

UEi TEST INSTRUMENTS™ Pocket Thermometer, -58 to 572 deg F, +/-1.8 deg F at -22 to 302 deg F, Otherwise +/-4 deg F Accuracy, +/-0.1 deg F Resolution, Digital, AB13 (SR44W) Battery, Stainless Steel Stem, 5 in L Stem, Plastic Case, Polycarbonate Lens

• On/off powers instrument on or off
• Minimum/maximum displays the minimum (1st press) or the maximum (2nd press) temperature recorded since the thermometer was turned on, the thermometer returns to real-time temperature readings in approximately 3 sec
• Hold - locks the present temperature on the screen while hold flashes in the corner, press hold again to resume real-time measurement
• Water-resistant