Thermapen Mk4 Operating Instructions

Congratulations
The new Thermapen Mk4 is a precision thermometer used for many applications, including
cooking. With proper care, it will offer accurate measurements for many years. The new
Mk4 Thermapen includes several new features, including: intelligent backlight, auto-rotating
display, user-selectable sleep interval, motion-activated wake-up mode, and added water
resistance.
Rotating hub
The micro-thermocouple sensor is located at the tip of the probe shaft. Minimum immersion
is only 1/8" (3 mm). For best results, immerse or penetrate the probe into the food item so the
probe tip is in the place you want to measure. In food, this should normally be at the center
of the thickest part.
Minimum immersion 1/8"
Sensor location
Probe Tip
Thermapen
Operating Instructions

Instrument Operation

The unit is switched on by unfolding the thermocouple probe
until the display comes on. Conversely, the unit is turned
off by folding the probe away and lightly pressing the tip
into the rubber probe retainer located at the bottom rear of
the instrument. It is recommended to store the probe in the
closed position when not in use.
Do not force the probe further than 180° when opening
or damage to the rotating hub may occur.
The Thermapen will read to within 1°F of the actual
temperature of an ice bath within three seconds. Reading
times in other foods may vary slightly.
Do not immerse the probe all the way to the plastic
rotating hub. Avoid getting flour, moisture, or oil on the
hub itself. Although there is an O-ring seal, oils can
work their way past the seal and accumulate inside
the hub and may cause failure. The probe tip is sharp.
Use caution to avoid injury. Do not "stab" the material
to be measured. Use steady force to penetrate meats
or semi-solids. Avoid bone. Do not lift or flip heavy
meats with the probe tip. The probe shaft is hollow and
contains a sensor. If bent, it may fail.
Mk4
®