This document introduces the features and characteristics of a certain brand of smart home appliance
The CT-6021A is a handheld pH meter with automatic temperature compensation, data hold, and auto‑shutdown features. It displays pH values from 0 to 14 and temperature in °C or °F, and includes a waterproof design.
The manual covers panel layout, function descriptions, calibration procedures for pH 6.8, 4.0 and 9.1 buffers, low‑voltage warnings, maintenance and care, technical parameters, warranty information, and a FAQ section that answers common usage questions. This manual is written in Chinese.
| pH range | 0‑14 pH |
|---|---|
| pH accuracy | ±0.1 pH |
| Temperature accuracy | ±0.5 °C |
| Operating temperature | 0‑100 °C (32‑212 °F) |
| Temperature display resolution | 0.1 °C/°F |
| Dimensions | 185 × 38 × 38 mm |
It shows that the temperature is too high (H) or too low (L).
The display shows "--" to indicate an out‑of‑range pH value.
The meter powers off after 20 minutes of no button activity.