Digital Water Quality Tester Dual Probe Online TDS Detector Input/Output Water Quality Monitor for Tap Water Fish Tank

It's a great honor for you to visit my store. Good luck with your favorite purchasesBattery Included : Yes High-concerned chemical : None Is Smart Device : Yes Model Number : Dual Channel Online TDS/EC Water Quality Detector Tester With Backlight Or Not : Yes Brand Name : JUANJUAN Origin : Mainland China Certification : CE