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ActiveAir Testers |
| These inexpensive meters are all suitable for soil testing indoors or out. They are durable, easy-to-read, and require no batteries to operate. More Details and Pricing |
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Pro pH Kit |
| 1000 tests per kit. pH range is from 3 to 10. Extremely reliable, accurate and user friendly. More Details and Pricing |
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P Hydrion pH Papers |
| Especially useful in hydroponics. Keep refrigerated, one year shelf life. Range is 5.5 to 8.0 showing good color contrast. More Details and Pricing |
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pH Meter |
| Flexible cable makes it ideal for hanging baskets or hard to reach plants. Wider more accurate testing of pH range; includes pH information on inside package for over 400 plants. More Details and Pricing |
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Soil Test EC Pen |
| This EC Pen will tell you how much nutrient is in your soil. Great for letting you know when your plants are under or overfed. Long probe is inserted into soil and EC is digitally displayed. More Details and Pricing |
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DigiStick |
| The lighted display is large and easy to read. There are no mistakes when the temperature compensating microchip quickly senses the electro conductivity of the nutrient solution or water sample and automatically freezes the displayed reading. PPM, EC and CF scales are easily accessed by easy to read buttons. More Details and Pricing |
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Hanna pH & PPM Pens |
| Hanna Instruments has improved these affordable waterproof pens. Designed for wet areas. These have always been our best selling meters. Inexpensive and easy to calibrate. More Details and Pricing |
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Hanna pH 5, PPM 5 Pens |
| These waterproof pH Pens are made for hydroponics. Range is -2.00 to 16.0 pH (full range) and accuracy is plus/minus .2 pH. Automatic calibration (1 or 2 points) and temperature compensation. More Details and Pricing |
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GroChek Hanna pH/EC/TDS/Temp. Waterproof Pen |
| This waterproof pen has it all with an accuracy of +/- 0.1. Automatic calibration and temp. compensation. Must be calibrated with Hanna pH 7 and Hanna 1500 PPM solutions. More Details and Pricing |
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Oakton Waterproof pH & PPM Testers |
| These pH and PPM testers are microprocessor based for fast, stable response. They have push-button operation and calibration and no adjustments are needed. Self-diagnostic error messages are displayed to help with troubleshooting. Easy to use. More Details and Pricing |
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Dip Stick |
| DIP STICK by Control Wizard Products. Dissolved salts pen, measures conductivity in both PPM, EC and CF. No calibration required, auto on/off. More Details and Pricing |