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
TDS & EC Water Quality Tester, Portable Digital Test Pen with Hold Function & Anti-Slip Design for Home Drinking Water & Aquarium
5-in-1 Water Quality Tester, Rechargeable Digital TDS EC pH Salinity Temperature Meter with Type-C Charging, High Precision Multifunctional Pen for Home and Aquarium (Chinese Voice Broadcast)
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
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
