ThermoWorks HygroBug Operating Instructions

What's included:
HygroBug, battery, lanyard, calibration certificate, and this instruction card.
How to operate:
HygroBug is an ambient temperature and humidity thermometer, primarily
used to track temperatures and humidity over time. It is not an instant-read
thermometer.
• To power on HygroBug, press power button once.
• To activate backlight, press power button. Backlight stays on for 10
seconds.
• To power off HygroBug, press and hold power button for 5 seconds.
• While HygroBug is on, press the power button twice—MAX temperature
and humidity will show in the display. Press power button again—MIN
temperature and humidity will show in display.
• To reset MAX/MIN, turn HygroBug off and on again.
• To switch from °F to °C, press and hold power button for 5 seconds
upon start up.
Sensor Care:
• Avoid exposure to harmful chemicals/materials and submersion in
water.
To Change Battery:
• Replace with 3-volt, CR2032 button cell battery. Use a phillips
screwdriver to open the battery cover on the bottom. Install the battery
according to the correct polarity, positive side up, sliding the battery
under the metal clip. Reattach the battery cover.
HygroBug
Operating Instructions
For service or warranty:
385-330-0591
techsupport@thermoworks.com
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