6 in 1 pH H2 EC ORP Tester and 8.4oz pH4+7 Calibration Solution, pH TDS EC ORP Drinking Water and Hydroponic Meter with 8.4oz pH 4.00 Calibration Solution and 8.4oz pH 7.00 Calibration Solution

EZTOCH 6 in 1 pH H2 EC ORP Tester and 8.4oz pH4+7 Calibration Solution, pH TDS EC ORP Drinking Water and Hydroponic Meter with 8.4oz (250ml) pH 4.00 Calibration Solution and 8.4oz (250ml) pH 7.00 Calibration Solution

• Package: 6 in 1 pH H2 ORP TDS EC Temp Meter with 50ml pH 4.0 and pH 7.0 calibration solution, 50ml 1413μS/cm calibration solution, 8.4oz (250ml) pH 4.00 Calibration Solution, 8.4oz (250ml) pH 7.00 Calibration Solution, 2*measuring cup (30ml)
• Hydrogen Water Meter PPB PPM: The newly launched EZTOCH hydrogen water bottle tester in 2025, can switch between two modes of H2 test (PPM/PPB) with one button. PPM measurement range is 0-2400ppm with resolution of 2ppm. PPB measurement range is 0.001-2.400ppm with resolution of 0.002ppm. High-precision measurement, fast response, suitable for hydrogen producing water bottles, hydrogen generators, hydrogen-enriched water, H2 water generator
• Hydroponic pH TDS EC ORP Meter: EZTOCH hydroponic EC tester can help hydroponic enthusiasts monitor the ideal pH range (5.3-6.5pH), quickly and accurately measure TDS EC values, and support ppm (ppm500), μS/cm unit testing. Help hydroponic enthusiasts monitor the nutrient level of hydroponic plants, ensure and adjust the root absorption of nutrients. EZTOCH ppm meter helps you control the ORP value at +300~+400mV, which can avoid root rot of hydroponic plants and water pollution
• pH4.00+7.00 Calibration Solution: large-capacity packaging, suitable for use with all pH meters. The package is equipped with a transparent measuring cup with scale, so that users can accurately grasp the amount of calibration solution (20ml) and better distinguish colors during use, avoiding unnecessary waste and greatly reducing the cost of maintaining the tester. The accuracy of the pH tester calibration solution is up to ±0.02 pH
• Calibration Method: For EZTOCH pH calibration solution 7.00, please follow the steps below: Place the pH probe in the 7.0 calibration solution, press and hold the CAL button for 5 seconds, then release the button and wait for 7.0 to flash 3 times to complete the pH 7.0 calibration. The steps for pH4.0 are the same as those for pH7.0 (Please refer to the manual for the calibration steps of other brands of pH meters