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Soil and Food PH Meter PH-2023 CALIBRATION
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The PH-2023 adopts 2 points calibration Points(4.00 and 6.86).
Learn more pls contact:
Skype：sunnyfeng102
Wechat: sunnyfeng102
cell phone/whatsapp：+86 19129364625
Learn more pls contact:
Skype：sunnyfeng102
Wechat: sunnyfeng102
cell phone/whatsapp：+86 19129364625
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