Is Smart Device:YESDisplay Type:DIGITALWith Backlight Or Not:YESModel Number:BLE-YC01Certification:CEPH Range:0.1-14.0 pHORP:-999mV~+999mVChlorine:0.1-4.0 mg/LEC:0-10000 uS/cm 10.01-20.00 mS/cmTDS:0-1000ppm; 1000-10000ppm;Temperature:0.1-60.0 32.0-140Calibration:6.8/4.0/9.18 or 7.0/4.0/10.0Waterproof:IP67Temp compensation:AutomaticBluetooth:5.2 VersionData storage:Can store the latest 1000 records of dataAttention: The water in the swimming pool should be between 6.5-8ph and ORP should be between 487-840mv, and the chlorine value will be displayed normally. Chlorine will not be displayed if either value is out of range If the PH value is lower than 6.5, it means that the water quality is too acidic and impurities, and it is necessary to add disinfectant water for disinfection. If the ORP value is above 850mv, it means that the disinfectant has been added too much, and it is necessary to add water or change the water for neutralization. Only support test swimming pool water quality.BLE-YC01 PH/CL/EC/ORP/TDS/TEMP Meter 6 in 1 Tooth-compatible CL Water Quality Pen APP Intelligent Control SwimmingTesterBLE-YC01 Meter Specifications:1. Model: BLE-YC012. PH: 0.00-14.003.TEMP: 0.1-60.0C; 32.1-140.0F4.Bluetooth connection APP control5.Mobile phone full screen multi-parameter display at the same time6.Two sets of calibration points are optional7. Simple operation8. The phone can control the backlight display9.Data storage / print support10.Precision probe11.Data sharing12. Product size: 160mm*90mm*26mm (Note: If there is an error in manual measurement, please refer to the actual situation)13.Waterproof grade: IP6714.Power supply mode: (not included)15.Weight: 220gPacking List:1 instrument;5 calibration powder (4.01&6.86*9.18, 7.00 10.01)1 Instruction Manual English1* Plastic wrenchAbout Shipping: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions, please feel free to contact usDuring the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shoppingThanks for your cooperation and we'll make you feel satisfied.