AquaticLife TDS Pen Aquarium Filtration AccuraSea Seawater Reference Solution from

AccuraSea Seawater Reference Solution from Two Little Fishies is the calibration solution of its kind

Light grey to charcoal

which ensures a good healthy circadian rhythm

for two hours

AquaticLife TDS Pen Aquarium Filtration AccuraSea Seawater Reference Solution fromAQUATICLIFE TDS Water Quality TDS Tester, 0 999 ppm Measurement Range, 1 ppm Increments, 2% Readout Accuracy Handheld model is ideal for portability and testing water from multiple sources. Advanced microprocessor technology provides accurate readings. Hold function saves measurement for convenient reading and recording. Battery life is approximately 1000 hours of usage and power source is 2 x 1. 5V included button cell batteries (LR44 size). Auto off