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EcoTestr pH1 Digital pH Solution Tester Meter Pen

Reg. $93.99 Save 27%
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Fish, plants, and people need different things to make a healthy habitat. When working with chemicals, it’s crucial to get the right balance or you could end up doing more harm than good. The Oakton EcoTestr pH1 Tester Pen measures one of the most important balances in any water system: acidity. This digital chemical tester is designed for maintaining aquariums and aquaculture, hydroponics, swimming pools, and other systems where pH might need to be adjusted. The EcoTestr pH1 Pen is a battery-powered device that tests samples and shows the pH levels on its easy-to-read LCD display. When there’s too much acid in a solution, the pH is low. A high pH reading means there’s not enough acid, and the solution is too basic. Getting those measurements lets you know when you need to adjust levels in your grow space, hot tub, or whatever you’re chemically balancing. Hydroponics hobbyists know that if pH is even a little bit off, it can be a real problem for plants. They have a much harder time accessing nutrients if the water’s too acidic or basic. Plants also naturally change the pH of their water just by absorbing those nutrients. The Oakton EcoTestr lets you keep measuring the balance and adjusting as they grow. Having a carefully maintained pH balance can be even more crucial in an aquarium. Certain fish can be much more susceptible to changes in the acidity of their water. Aquaculture owners can use the Oakton EcoTestr Tester Pen to check the levels about once a month. If a fish becomes sick or dies, use the pen to test immediately, on the final day of treatment, and again about a week later. Measure the pH of your pool water with the Oakton EcoTestr to see if there’s more acid than there should be. Water that’s too acidic could corrode metal parts in your pool, cause etching on other surfaces, and irritate your skin. If the pH is too high, scaling can build up on pool walls and floor, as well as on your plumbing equipment. It can even make the water cloudy. Whatever water system you’re taking care of, use a tool that gets accurate readings fast, without hassling with extra chemicals and reagents. Keep your pH in balance with the Oakton EcoTestr pH1 Tester Pen.


  • Ideal for Student, Hydroponics, and Hobbyist use!
  • Economical, pocket sized meter is perfect for less demanding applications
  • Waterproof, dustproof housings float
  • Easy to use; push-button calibration with auto buffer recognition
  • Includes transparent electrode cover / sample cup
  • Push-button calibration, HOLD function, and error messages
  • Specifications:
  • Package Dimensions: 6.5L x 1.5W x 1.5H
  • Range: 0.0 to 14.0 pH
  • Resolution: 0.1 pH
  • Accuracy: 0.1 pH
  • Calibration: one point
  • Buffer recognition: 4.0, 7.0, or 10.0
  • Display: three-digit vertical LCD
  • Temperature compensation: none, bring samples and standards to room temperature
  • Power: four 1.5 V button cell batteries (included)

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