TDS & EC Water Quality Tester, Digital Water Purity Meter with Temperature Measurement, Backlight Display, Hold Function, Titanium Alloy Probe for Drinking Water and Aquarium Testing
Digital TDS EC Water Quality Tester Pen, Rechargeable with Titanium Alloy Probe, Dual Color Backlight, IP67 Waterproof, High Precision Meter for Home Drinking Water Testing
7-in-1 Water Quality Tester Pen, pH/TDS/EC/ORP/Salt/S.G/Temperature Meter for Drinking Water, Aquarium, Swimming Pool & Hydroponics
4-in-1 Water Quality Tester Pen, pH/TDS/EC/Temperature Meter with Backlight Display, IP65 Waterproof, for Drinking Water, Aquarium & Hydroponics
7-in-1 Water Quality Tester, High Precision pH/ORP/TDS/EC/Salinity/S.G/Temperature Meter, Portable Digital Test Pen for Aquarium, Hydroponics & Home Use
5-in-1 Bluetooth Water Quality Tester, PH/TDS/EC/Salinity/Temperature Meter with APP Control for Aquarium, Hydroponics & Home Use
