The Orchid Doctor Articles under the Heading Thermometers

Thermometers Comments
THERMOMETERS: Good and Bad A mercury thermometer is not the most accurate; a good dial-read type is more accurate; good ones are accurate to the manufacturer's specifications; 17, accurate types will not be off more than 1.25 deg.F. on the practical range of 25 to 125 deg.F. OD70-18 0

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