MacDoDo PH-2011 meter Suitable for testing pH balance of drinking water, pool, aquarium, RO system, Spa, or hydroponics; Appropriate for wide range of applications. It has Clearly written meter operation, care and maintenance guide and step by step instructions for the initial calibration of your meter in the package. And two buffer powder packs (4.01 pH and 6.86 pH) to facilitate the auto calibration in a sturdy plastic carrying case for safely transporting and storing your meter between uses. How to calibrate: 1.Use the calibration powder preparing a standard buffer solution. 2.Immerse the electrode in the standard buffer solution under the temperature of 25℃ and wait for about one minute. 3.Regulate the trimmer with a screwdriver until the reading corresponding to the buffer solution pH4.01 or 6.86. Specifications: Measure Range: 0.00-14.00 pH Resolution: 0.01 pH Accuracy: ±0.01 pH Operating temperature: 0-50℃ (32-122℉) Automatic temperature compensation: 0-50℃/32-122℉ Power supply: 4 x 1.5V (LR44 button cell included) Product dimensions: 151*33*20 mm Net weight: 60 g/2.1 oz Tips and Tricks: Please read the instruction manual prior to use. Always be sure your pH meter is properly calibrated each time when use. Never touch a sensor electrode or reference cell with your fingers: skin oils will affect readings and can permanently damage a pH sensor Always lightly swirl a meter in the water or solution to dislodge any trapped air bubbles Never store a pH meter in high heat or humidity, Never store a pH sensor in distilled water The pH meter is a sensitive scientific instrument and should always be treated as such Package Contents: 1 x pH Meter (batteries included) 1 x Calibration screwdriver 2 x Buffer power solutions(4.01 and 6.86) 1 x Carrying case 1 x Instructions
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