Convenient use: 5 seconds on water quality, accuracy, speed. This TDS PH EC temperature set. Besides, they have the best price, trustworthy quality, make it your first water quality test. How Accuracy: The resolution of pH is 0.01 pH, the accuracy is ±0.01 HP. TDS: 0~9990ppm, Conductivity: 0~9990us/cm, Accuracy: ±2%. Latest Model: PH pens have AUTO CALIBRATION function, no screwdriver is needed to calibrate the PH pen tester. TDS pens have an auto-lock and auto-off feature. Pocket Portable: Small in size but suitable for testing the pH balance of drinking water, swimming pool, aquarium, RO system, spa or hydroponics. Wide Application: Ideal for home and laboratory pH testing, including drinking water, electroplating liquid, boiler water, water in aquarium, swimming pools water , photographic flushing fluid, well water, deep water, aquaculture, food processing and more.
