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Meter Tester Water Quality Test LCD Backlight Portable Orp Redox Meter

Oxidation reduction potential(ORP) is a process by which a molecule or ion loses or gains electrons. This occurs most readily

MS8229 Auto Range Digital Multimeter Temperature Humidity Light Lux Sound Level Meter Tester

  The luminance function is applicable to measuring field luminance with full cosine correction for angular incidence of light. Auto range and