Yieryi Digital large screen PH Meter 0-14 Pocket Pen Aquarium Test Medidor De Ph pen
Features:
- Measuring range :0.00-14 .00 PH
- Accuracy: +/- 0.01PH
- Resolution: 0.01PH
- Operating temperature: 0 oC~ 50 oC
- Battery: 3X1.5V (AG13 button battery type) ( including batteries)
- Dimensions: 142mm (L) × 29mm (W) × 15mm (H)
- Weight: 51 g
- PH meter calibration while increasing standards:
- 1, the pH electrode into the pH value of 6.86 (25 oCc under standard mixed phosphate buffer solution, and gently shake.
- 2, with a small screwdriver adjust the calibration potentiometer until the display value and the standard buffer solution at ambient temperature ph values.
- 3, the electrodes into pH4.00 stupid phosphorus or potassium acid borax pH9.18 standard buffer solution.
- 4, after about two minutes or so. Shows the pH value of the buffer value is compared to the error should be within the allowable range.
packing list:
- 1 x ATC pH meter with plastic box
- 1 x screw driver
- 3 x AG 13 button cell batteries ( included)
- 2 pouches of calibration buffer solution (4.0 & 6.86)
- 1 x instruction manual ( English)
