1. Multifunctional Bluetooth meter: Intelligent control via a mobile phone app with full-screen multi-parameter display on the phone. Measures PH/EC/TEMP, PH/TEMP, or PH/EC/TEMP configurations. The phone can control the backlight. Suitable for drinking water, aquariums, swimming pools, farm irrigation, laboratories, and other environments. 2. Cloud data management system: Real-time Bluetooth data transmission with synchronized time and data sets. Share data or print reports, and calibration recordings are viewable on the phone. 3. Automatic calibration test: Highly sensitive, replaceable probe, easy to operate. Automatic pH calibration with two-point calibration optional. 4. Multifunctional meter with automatic temperature compensation: Temperature influences measurements. The digital pH tester supports 0.0 C to 60.0 C (32 to 140 F) with automatic temperature compensation to ensure accurate readings in diverse environments. 5. High precision water quality detector: Uses high-precision algorithm chips and electrodes for accurate and fast results. EU CE certification. Chinese/English switch, backlight LCD, read results anytime. One-key lock reading function, with automatic and manual data storage. Typical applications: - Home and hobby use: monitor drinking water quality and maintain healthy aquariums. - Pool and irrigation: accurate monitoring for pools, ponds and agricultural irrigation systems. - Laboratory and field work: precise data logging, calibration tracking, and easy reporting for experiments.