Blue Mini Digital LED TDS Pen Type Water Quality Tester TDS Meter For Monitoring hydroponics aquariums
1.The AquaLutio Digital TDS Water Meter is ideal for testing applications such as hydroponics and gardening, pools and spas, aquariums and reef tanks, water ionizers, Water Filter. drinking water and more.
2.Measurement Range: 0-9990 ppm ,
Resolution: 1 ppm
Accuracy: ± 2% Readout .
3.Auto-off function - Turns off meter after 5 minutes of non-use to conserve batteries.
Power source: 2 x 1.5 V(LR44 Button Cell)(not included)