ORP Calibration Buffer Powder 256mV Redox Potential Analyzer Test Pen Calibration Liquid Buffer<br><br>ORP correction powder buffer powder is a newly developed, convenient to transport and carry, solves the problem of inconvenience and expensive transportation of ORP correction liquid, and makes ORP correction more convenient and easy.<br><br>Add 50ml of distilled water or purified water to a pack of powder<br><br>About that product :<br>This powder can be configured with 256mv ORP calibration liquid<br>Please note: The product does not include the test pen in the picture, this is a mold to show the powder function<br> <br>Package included:<br>1 x ORP Buffer Calibration Powder<br><br>Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store