4/3/2 in 1 Optional PH ORP H2 Temperature Hydrogen-rich Meter Water Quality Purity Detector for Aquarium Pool Hydroponic

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 : No Model Number : ph meter With Backlight Or Not : Yes Display Type : DIGITAL Brand Name : JUANJUAN Origin : Mainland China Certification : CE