juan juan | 0-18% Sodium Hypochlorite Refractometer LCD Display Refractometer Sodium Hypochlorite Meter Accuracy One-click Measuremen

0-18% Sodium Hypochlorite Refractometer LCD Display Refractometer Sodium Hypochlorite Meter Accuracy One-click MeasuremenDigital Display Sodium Hypochlorite RefractometerRange: 0-18 per centAccuracy: ±1%Please note the battery is not included.Booting:Press "READ"Button to Turn On.Note:1. When used outdoors, please avoid strong light so as not to affect the measurement accuracy,2. Please keep the instrument in a stable and still statement and position.3.Please keep the instrument in a stable status to measure.

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