The MW802 is a compact portable meter with faster micro processor. This meter allows you to measure pH, EC and TDS with just one instrument and one single probe! This easier and faster to calibrate portable meter has a smaller, ergonomic and lighter case design. Also has 100% larger and easier to read LED Display and long battery life. It calibrates manually in pH, Conductivity and TDS. Range: 0.00 to 14.00 pH, 0 - 4000 ppm, 0.00 - 6.00 mS/cm, accuracy of ±0.20 pH and ±2% full scale for EC and TDS.

Model T75 Waterproof TDS tester with automatic temperature compensation and 1 point manual calibration range: 0.0 to 1999 ppm (mg/L), replaceable MA73075 probe.

Waterproof TDS tester with automatic temperature compensation and 1 point manual calibration range: 0.0 to 9990 ppm (mg/L), replaceable MA73076 probe.

The MW802 is a compact portable meter with faster micro processor. This easier and faster to calibrate portable meter has a smaller, ergonomic and lighter case design. Other features include 100% larger and easier to read LED Display and long battery life. pH meter, range: 0.0 to 14.0, with 2 point manual calibration, and accuracy of ± 0.2 pH. Supplied with a MA911B/1 double junction pH electrode, 9v battery, 20ml pH 7.01 packet buffer solution and screwdriver for calibration.

Used to clean meter tip. Works for both pH and conductivity meters. Comes as a two part A and B cleaning solution to remove both organic and inorganic deposits from meter sensors. Use monthly or as needed to refresh your meter and keep it working optimum. Soak tip in part A for 5 min, then part B for 5 min and then back in part A for 5 more minutes and rinse with tap water.

An enlightened concept in pH control, a crystallized pH adjuster for the professional & hobbyist. For soil, soilless, hydroponic, hydro-organic and foliar applications. For use with organic and synthetic fertilizers, herbicides and pesticides.

An enlightened concept in pH control, a crystallized pH adjuster for the professional & hobbyist. For soil, soilless, hydroponic, hydro-organic and foliar applications.

General Hydroponics pH Test Kits make pH testing easy. Simply fill a test-tube halfway with nutrient, add a few drops of pH Test Indicator, and observe the coloration of the liquid in the test vial. Many experienced growers prefer our pH Test Kit to expensive electronic meters because of its reliability and ease of use, which are important factors when the health of a valuable crop is at stake. Use 3 drops per 5mL of solution.