| TDS Tester Pens_Hydroponic TDS Testers_TDS pen_TDS Hydroponics Pen_Oakton TDS testers_Milwaukee TDS |
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| MIAMI HYDRO HYdroponics-Grow-Light.com Hydroponics Supply |
Blue Lab Combo Meter • Light weight and portable • Measures pH, Nutrient and Temperature • Three display options for nutrient - EC, CF, ppm (500 scale) • Two display options for temperature (°C or °F) • Three calibration points, 4, 7 and 10 pH • Temperature at a push of a button • Simple push button pH calibration • Auto turn off function • Large 13mm (1/2”) digital display for easy reading • Supplied with quality probes and pH calibration solutions • Low battery indicator • Long life 3 AAA batteries • 5 year Bluelab Guarantee (6 mo for pH probe)
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| Blue Lab Combo Meter |
Blue Lab Nutrient Monitor • Continuously measures ppm • Temperature reading at a touch of a button--range 32 - 122° F • Flashing LED alarm quickly seen in a dark growing area • 2 meter probe length • Large 13mm (1/2”) digital display for easy reading • Long battery life (18 mo. from alkaline batteries) • Ready to mount on wall or surface • Automatic temperature compensation • Serial interface socket for connection to the Bluelab Maestro™ • 3 AA batteries • 2 year Bluelab Guarantee
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| Blue Lab Nutrient Monitor |
| Blue Lab Original Truncheon Meter |
Control Wizard E.C. Dipstick New name! New label! Same easy to use meter! Now with the 4 most popular scales: EC, CF, 500:1ppm, and 700:1ppm! The E.C. Dipstick dissolved salts pen operates on 3 common inexpensive AA alkaline batteries. Measures in PPM, EC and CF scales. There is no calibration required. It calibrates itself each time you replace the batteries. It is water resistant so a light emersion in the plant nutrient should not hurt. However, it is a good idea to test small amounts of nutrient away from large bodies of water just in case you have butter fingers.
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| Control Wizard E.C. Dipstick |
| Oakton Water proof Microprocessor TDS Testr Low |
Oakton Ultra Basic TDS Testr • Feature push-button calibration and high ±1% full scale accuracy! • Waterproof, dust proof housing that floats is certifiable to IP67 standards • Replaceable sensor lets you reuse same meter body, saving you money • Automatic Temperature Compensation • 0 - 1990 PPM • Hold function, Auto-Off Our waterproof microprocessor TDSTestr basic offers push-button calibration and ±1% accuracy in a rugged waterproof housing. Never worry about losing your tester in a pond or tank; these testers float!
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| Oakton Ultra Basic TDS Tester |
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Blue Lab Original Truncheon Meter Features of this reliable meter include: EC, CF and ppm scales, factory calibrated, fully waterproof, auto turn on and off. It is powered by three standard AA batteries. There are no external switches or adjustment knobs. 5 year Bluelab® Guarantee (1 year for probe)
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