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用這種防水袖珍測試儀可以在幾秒鐘內就測出溫度和PH值，電池電量顯示器會顯示電池的電量，當電量足的時候就會顯示測試出來的穩定的PH值。自動校準使測量更加的準確。PH測量范圍：0~14；溫度測量范圍：0-60℃。1年保修。上海瑞億儀器有限公司
Test both pH and temperature simultaneously and see the results in seconds with this waterproof pocket meter. The battery level indicator ls the battery life remaining, while the stability indicator ls when the pH measurement is stable. Automatic calibration to known standards assures greater accuracy of measurement and the electrode can be replaced simply by pulling the cloth junction to rejuvenate it. Measures pH from 0.0-14.0, temperature 32-140° F （0-60° C）, accuracy @ 28° F （20° C） is ±0.1 for pH and ±1° F （.5° C） for temperature. Unit size is 6-7/16" x 1-5/8" x 1" （16.5 x 4.1 x 2.5 cm）. One-year warranty.