Boveda One-Step Hygrometer Calibration Kit - 75% RH - Standard Small

Hygrometer Humidity Meter Digital Gauge Thermometer Monitor Sensor Indoor Outdoor

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Measures and display temperature and humidity Mini body design

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Product Review

Measures and display temperature and humidity Mini body design

Professional Accuracy（FCC ROHS CE approved）
With a magnet on the back(Wall mountable)
℉/℃ display conversion(hold on the button on the back for 3 seconds)
The package is the instructions（Open it）
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Boveda One-Step Hygrometer Calibration Kit - 75% RH - Standard Small