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User's Manual Hygro-Thermometer Pen Models 445580 and 445582 (kit) METER DESCRIPTION 1. Humidity/Temperature Sensor 6. Memory Reset button 2. POWER ON/OFF button 7. Humidity Display 3. Data HOLD button 8. Temperature Display 4. MIN/MAX Memory button 9. Function Displays 5. Calibration and units select button INTRODUCTION Congratulations on your purchase of the Extech Hygro-Thermometer Pen.
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‘C’ or ‘F’. The display will reflect the change. 4. Press the recessed F/C button to store the selection. ‘S’ will appear in the display. 5. The display will then show ‘%MIN’. Turn off the meter to complete the operation. Models 445580 & 445582 Version 3.2 August 2003...
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Note: If the salt at the bottom of the calibration bottles appears dry, the bottles should be replaced. * For testing purposes, the 40-minute stabilization period can be shortened. However, for the most accurate calibration use the 40-minute period. Models 445580 & 445582 Version 3.2 August 2003...
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2032 lithium battery installing it face (+) up in the battery compartment. WARRANTY EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free of defects in parts and workmanship for one year from date of shipment (a six month limited warranty applies on sensors and cables).
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