Description 1. Model: BLE-YC01 2. Bluetooth connection app control 3. Full Screen Multi Parameter Mobile Phone Display at the Same Time 4. Two sets of calibration points are optional 5. Simple operation 6. The phone can control the backlight 7. Support data storage/printing 8. Precision probes 9. Sharing of data 10. Waterproof Class: IP67 11. Battery: 3*1.5V(LR44), not included 12. Size: 160*80*26mm,220g 13. Display: digital display LCD 14. Backlight: app control 15. Temperature: Automatic temperature compensation 0-60 16. Working environment: 0.1 -80 ; RH:Max 90% Steps of operation: 1. Scan the QR code and download the app 2. If you need bluetooth function, long press "ON/OFF" and open bluetooth 3. Place the meter in a standard solution and support functions 4. Save for reading List of packaging: 1 * Tester water quality 5 * powder calibration 1 * instruction in English 1. pH Range: 0.1-14.0 pH Resolution: 0.1 pH Accuracy: 0.1 pH 2. CL: Range: 0.1-4.0mg/L Resolution: 0.1mg/L 3. We : Range: 0-1999μS/cm; 2000-10000μS/cm; 10.01-20.0 ms/cm Resolution: 1 μS/cm;10 μS/cm; 0.01ms/cm; Accuracy: 2% F.S 4. TDS : Range: 0-999ppm; 1000-9990ppm; Resolution: 1 ppm; 10ppm; Accuracy: 2% F.S. 5. ORP: Range:-999999mV Resolution: 1mV , You can mention them: 15mV 6. Calibration : PH: 6.8/4.0/9.18 or 7.0/4.0/10.0 EC / TDS :1413 μS/ cm ; 12.88 ms/ cm ; 111.8 ms/ cm ORP: 256mV Calibration records can be viewed 1. Multifunctional meter with Bluetooth: mobile phone application intelligent control, multi-parameter mobile phone display, professional PH/CL/EC/ORP/TDS/TEMP measurement. The mobile phone can control the backlight. Application in drinking water, aquarium, aquarium, swimming pool, agricultural land irrigation, laboratory, etc. 2. Cloud data management system: precise Bluetooth data transmission in real time, time and data recording synchronization, data sharing or printing excel tables, mobile phone can display calibration record. 3. Automatic Tester calibration: high sensitivity replaceable sonda, easy to operate, automatic pH calibration, two sets of calibration points are optional 4. Multifunctional meter with automatic temperature compensation: temperature can affect reading levels, digital tester pH has an even better range of 0.1-60.0 (32.1-140.0f), automatic temperature compensation can provide the best reading, so you can test with confidence in any environment (4.0 6.86 9.18/4.0 7.00 10.00). 5. High, you can mention them sampler for water: high, you can mention them the layout of algorithms and electrodes of our digital Tester water quality ensure accurate and fast response. Certificate ue CE, switching in Chinese/English, display LCD, reading measurement results at any time. One key to block the reading function, you can view the data at any time. You can set to save data automatically/manually. It can detect changes in water data for a long time and automatically set the recording time interval of measurement results. You can set maximum and minimum values. When the measurement result is not within the set range, the value will be displayed in red.