Organic Nitrogen & Potassium

Its sturdy structure and durable material make it a reliable choice for long-term use

That means no more pH ups or downs

But you can’t catch up: after those first two weeks are gone

Economic and maintenance-free

Aqua Master Tools EC Temp Meter E50 Pro Professor’s Nutrients Organic Nitrogen & PotassiumThe E50 Pro EC temp meter is the latest tool in Aqua Master Tools wide range of high quality products. Ideal for measuring EC and temperature of liquid plant nutrition and water in swimming pools, Jacuzzis, and ponds. Effortlessly switch between the parameters with the user friendly buttons. The meter is delivered fully calibrated and includes batteries. How does the meter work? Remove the protective cover. Gently clean the electrode with distilled