Collection:
pH / EC / TDS Meter
46 products
AquaMaster P110 Replaceable Electrode
Call for price
Suitable for the Combo Pen P110 Pro. Please refer to the User Guide for instructions on how to replace the electrode. Waterproof IP67.
Alfred pH Test Strips (4.5-9) Unit
Regular price
$10.99
Sale price
$10.99
Regular price
Unit price
/per
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,...
AquaMaster E50 Pro Replaceable Electrode
Regular price
$29.95
Sale price
$29.95
Regular price
Unit price
/per
Suitable for the EC Temp meter E50 Pro. Please refer to the User Guide for instructions on how to replace the electrode. Waterproof IP67.
HM Digital™ Handheld TDS Tester Model TDS-3
Regular price
$37.00
Sale price
$37.00
Regular price
Unit price
/per
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...
NUTRI+ PH QUICKCHECK TESTER (1)
Regular price
$37.95
Sale price
$37.95
Regular price
Unit price
/per
NUTRI+ PH QUICKCHECK TESTER (1)
UPC Code: BIO
Fast
Easy to use
30 days warranty
Hanna HI1271 pH Electrode for HI98115 GroLine
Regular price
$37.95
Sale price
$37.95
Regular price
Unit price
/per
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...
AquaMaster P50 Pro Replaceable Electrode
Regular price
$38.95
Sale price
$38.95
Regular price
Unit price
/per
Suitable for the pH Temp meter P50 Pro. Please refer to the User Guide for instructions on how to replace the electrode. Waterproof IP67.
NUTRI + TDS QUICKCHECK TESTER
Regular price
$46.35
Sale price
$46.35
Regular price
Unit price
/per
NUTRI + TDS QUICKCHECK TESTER
UPC Code: BIO
Quick
Easy to use
Economical
30 days warranty
Alfred Digital EC / TDS / Temperature Hydro Tester
Regular price
$52.95
Sale price
$52.95
Regular price
Unit price
/per
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, ...
HM Digital™ pH Meter Model PH-80
Regular price
$56.00
Sale price
$56.00
Regular price
Unit price
/per
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...
AquaMaster P160 Replaceable Electrode
Regular price
$58.95
Sale price
$58.95
Regular price
Unit price
/per
Suitable for the Combo pen P160 Pro. Please refer to the User Guide for instructions on how to replace the electrode. Waterproof IP67.
Hanna GroLine pH Tester
Regular price
$59.95
Sale price
$59.95
Regular price
Unit price
/per
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...
LUX-METER DIGITAL LX1010B
Regular price
$65.95
Sale price
$65.95
Regular price
Unit price
/per
LUX-METER DIGITAL LX1010B
Light meter
Hanna pH Tester HI98107
Regular price
$69.95
Sale price
$69.95
Regular price
Unit price
/per
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...
Hanna PPM DIST-1 HI98301
Regular price
$74.95
Sale price
$74.95
Regular price
Unit price
/per
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
AquaMaster P700 Pro 2 Replaceable pH Electrode
Regular price
$74.95
Sale price
$74.95
Regular price
$84.95
Unit price
/per
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
AquaMaster P700 Pro 2 Replaceable EC, CF, PPM Electrode
Regular price
$76.90
Sale price
$76.90
Regular price
$84.95
Unit price
/per
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...
Hanna Probe PHEP4 & PHEP5 & Combo HI73127
Regular price
$88.95
Sale price
$88.95
Regular price
Unit price
/per
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
AquaMaster E50 Pro EC Temp Meter
Regular price
$94.95
Sale price
$94.95
Regular price
$110.95
Unit price
/per
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
AquaMaster P50 Pro pH Temp Meter
Regular price
$98.95
Sale price
$98.95
Regular price
$110.95
Unit price
/per
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,...
Use left/right arrows to navigate the slideshow or swipe left/right if using a mobile device