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pH / EC / TDS Meter

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Suitable for the Combo Pen P110 Pro. Please refer to the User Guide for instructions on how to replace the electrode. Waterproof IP67.
Regular price $10.99
Sale price $10.99
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Alfred’s pH Test Strips are quick, easy, and reliable!Don’t take any chances, no other nutrient solution characteristic is more important for healthy plants. Without the correct acidity/alkalinity,...
Regular price $29.95
Sale price $29.95
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Suitable for the EC Temp meter E50 Pro. Please refer to the User Guide for instructions on how to replace the electrode. Waterproof IP67.
Regular price $37.00
Sale price $37.00
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Ideal for commercial use. Includes a carrying case with belt clip. Highly efficient and accurate due to its advanced microprocessor technology. Hold function: saves measurements for convenient read...
Regular price $37.95
Sale price $37.95
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NUTRI+ PH QUICKCHECK TESTER (1) UPC Code: BIO Fast Easy to use 30 days warranty
Regular price $37.95
Sale price $37.95
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The HI1271 is the spare pH electrode for the HI98100, HI98103, and HI98115 Checker pH meters. Replacing the pH electrode is both quick and easy. Simply unscrew the old probe to be replaced and scre...
Regular price $38.95
Sale price $38.95
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Suitable for the pH Temp meter P50 Pro. Please refer to the User Guide for instructions on how to replace the electrode. Waterproof IP67.
Regular price $46.35
Sale price $46.35
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NUTRI + TDS QUICKCHECK TESTER UPC Code: BIO Quick Easy to use Economical 30 days warranty
Regular price $52.95
Sale price $52.95
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The TDS-1 is an economically priced, reliable EC/TDS meter that is ideal for testing applications such as hydroponics & gardening, pools & spas, aquariums & reef tanks, water ionizers, ...
Regular price $56.00
Sale price $56.00
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Resolution: pH 0.1 pH, 0.00–14.0 pH. Accurate to +/-0.1 pH. Hold button and auto shut-off. Automatic calibration: Auto-ranging to 4, 7 or 10 pH. Very reliable and long lasting. Low battery indicato...
Regular price $58.95
Sale price $58.95
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Suitable for the Combo pen P160 Pro. Please refer to the User Guide for instructions on how to replace the electrode. Waterproof IP67.
Regular price $59.95
Sale price $59.95
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The pH128 GroPro is a pH tester with advanced features for the measurement of pH in hydroponic nutrient solutions. The pH128 is a very simple meter to operate with all functions including turning o...
Regular price $65.95
Sale price $65.95
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LUX-METER DIGITAL LX1010B  Light meter
Regular price $69.95
Sale price $69.95
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The HI98107 pHep® is an easy-to-use pH water tester that makes monitoring water quality simple.This accurate pH tester features 0.1 resolution with automatic two-point calibration and temperature c...
Regular price $74.95
Sale price $74.95
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The Hanna Instruments HI98301 DiST 1 is a low-range total dissolved solids tester than can measure up to 2000 ppm (mg/L). The DiST 1 is a rugged and reliable pocket-sized tester for use in the lab ...
12% Off
Regular price $74.95
Sale price $74.95
Regular price $84.95
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The AquaMaster tools replaceable pH electrode is easy to connect using the BNC connector. Due to the long pH double junction electrode, it has a longer life. Over time, pH electrodes age, even with...
9% Off
Regular price $76.90
Sale price $76.90
Regular price $84.95
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The Aqua master tools replaceable EC, CF, PPM electrode is easy to connect using the connector. The electrode cannot be replaced with most conductivity meters because they generally do not break if...
Regular price $88.95
Sale price $88.95
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The HI73127 is a spare pH tester electrode that is compatible with: HI98129, and HI98130 Combo multiparameter testers HI98127 and HI98128 pHep® testers HI98121 ORP tester These meters also use HI...
14% Off
Regular price $94.95
Sale price $94.95
Regular price $110.95
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The 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,...
11% Off
Regular price $98.95
Sale price $98.95
Regular price $110.95
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The P50 Pro pH temp meter is the latest tool in Aqua Master Tools’ wide range of high-quality products. Ideal for measuring pH and temperature of liquid plant nutrition and water in swimming pools,...