• Easy to use- No need to measure, just mix each packs with 250mL distilled water.
• Calibration powders enable you to test the pH of your pool, aquarium, water, and more quickly
• Designed for portability- Individual sized packets can be tucked in drawer, bag or suitcase for travel.,easy to carry.
• Save time and money-By mixing powders in a jar of distilled or deionized water, this lets you keep them longer and more readily available without needing more packets!
• Wide range of applications-Ideal for testing pH balance of drinking water, pool, aquarium, RO system, Spa, or hydroponics

Specification:

1. PH: 4.00/ 6.86 /9.18 Calibration Point
2. Each Pack Volume: 250 ml.
3. Each powder packet/sachet makes 250ml of solution (when mixed with distilled or de-ionized water)
4. Accuracy: ±0.01pH at 25°C

Directions for use:
Step 1:Completely empty the powder into a clean 250ml glass beaker.
Step 2: Add 250ml deionized water (or distilled water) to the beaker.
Step 3: Stir until the powder has completely dissolved.
Step 4: Calibrate your pH meter accordingly.

Option:

4.00 Solution (Potassium Hydrogen Phthalate)
6.86 Solution (Mixed phosphate)
9.18 Solution (Borax)

Package list:
1pack PH Meter Buffer Powder