Digital Ph Meter for Hydroponics with 0-14 PH Measurement Range 0.01 PH High Accuracy PH Reader for Water-Brewing-Food-Soil-Sauce-Laboratory Water PH Tester Digital

Specifications: 2020 Updated Version Measuring Range: 0-14.0 PH Resolution: 0.1 pH Accuracy: ±0.1 pH (20°C) Use Environment: RH 95%, 0-50°C ( 32?176°F ) Battery: 2×1.5V LR button cell Weight: 1.76 OZ Package Includes: ? 1 x PH Meter ? 3 x Calibration packets ? 1 x Carrying case ? 1 x User's manual Calibration Tips: ?1. Dissolve pH buffer powder in 250ml of distilled water. ?2. Turn on pH meter and clean the electrode in distilled water, then immerse the electrode in the pH standard solution. ?3. Press 'CAL' button, wait until the reading is the same as the PH value of buffer powder and steady. ?4. Clean electrode with distilled water and dry it.