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Mercury-free min/max thermometer.

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13,90 EUR
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Mercury-free min/max thermometer.
Real-time display of current temperature and maximum and minimum temperatures since the last setting.

By using this thermometer along with a rain gauge (manual or electronic) you can choose the days on which to water the truffle tree seedlings or truffle beds.

Current temperatures: the current temperature is taken at the bottom of the column of red liquid, either on the left or on the right

Minimum - maximum reading: when the temperature changes, the columns of liquid move. The black cursor gives the minimum temperature reached on the left column, and the maximum temperature on the right column. Read the temperature situated beneath the black cursor.

Reset: press the button in the centre until the black cursor returns to the red liquid.