2/5 in 1 Bluetooth PH Meter TDS EC Salinity SG Temperature PH Tester Digital Water Quality Monitor for Aquarium Pool Laboratory

It's a great honor for you to visit my store. Good luck with your favorite purchasesBattery Included : No High-concerned chemical : None Is Smart Device : Yes Model Number : Water Quality Test Pen With Backlight Or Not : Yes Display Type : DIGITAL Brand Name : JUANJUAN Origin : Mainland China Certification : CE