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Hand Held Refractometer REFRACTOMETER
This revolutionary hand held refractometer lets you see
exactly how plants are using nutrients. Put leaf scrapings on
the sensor and read the results immediately which reveal the
percentage of sugar present in the sample.
MSRP: $111.95... — Ships from Perris, California; Cranston, Rhode Island; Portland, Oregon; Aurora, Colorado; Dallas, Texas USA — FREE shipping when ordering $75 or more of qualifying items....more.
Hanna pH/Temperature Waterproof Pen (pHep4 Meter) Hanna pH/Temperature Waterproof Pen (pHep4 Meter)
HANNA WATERPROOF PENS
Hanna Instruments offer the most advanced pens in the market today. The pHep4 pH/Temperature waterproof pen
has a .01 ph resolution. The Dist5 EC/TDS pen is unmatched in EC/TDS/Temperature measurement. The Combo
pH/EC/TDS/Temperature pen offers highly advanced accuracy with a single tester. All Hanna Instru... — Ships from Perris, California; Cranston, Rhode Island; Portland, Oregon; Aurora, Colorado; Dallas, Texas USA — FREE shipping when ordering $75 or more of qualifying items....more.
OAKTON WATERPROOF pH TESTER 10 Oakton Waterproof Double Junction pHTestr® 10 Large Display
WATERPROOF PH TESTER 10
Automatic Temperature Compensation (ATC)Push-button three-point calibrationMicroprocessor-basedAuto buffer recognitionHold functionCertifiable to IP67 standardspH range - 1.0 to 15.0 pHReplaceable double junction electrode... use Testr body many times over, which saves you money
... Note: Calibration Buffer Solutions are available separately....more.
HANNA GROCHEK® REPLACEMENT pH PROBE - HI1285-6 (SPECIAL ORDER ONLY) HANNA GROCHEK® REPLACEMENT pH PROBE - HI1285-6 (SPECIAL ORDER ONLY) (716816) FOR Hanna Waterproof pH/EC/TDS Temp Meter W/pH Electrode Diagnostic HI 9813-6
pH electrodes are commonly designed to produce and output signal equal to 0 mV when immersed in a solution with pH 7. But a constant output value at pH 7 occurs as a result of certain adverse events, such as: A broken bulb i... Note: Calibration Buffer Solutions are available separately....more.
Replacement probe for Combo Meter (HI 1285-0) Replacement probe for Combo Meter (HI 1285-0) (eco-5528C)Replacement probe for Combo Meter (HI12850)
Manufacturer's Product Information
MSRP $114.95
... — Ships from Seattle, Washington USA...more.
GroChek pH Meter. HANNA GRO CHEK pH Meter. This meter provides a continuous digital pH reading. It is powered by a simple transformer. The electrode rests in your reservoir or nutrient tank and provides real-time pH monitoring. You can have a professional piece of equipment at consumer prices!... Note: Calibration Buffer Solutions are available separately. — Ships via UPS from Portland, Oregon USA...more.
Accurate pH 9 This continuous pH monitor is rugged in design and function. The meter displays both pH and temperature and is unaffected by electromagnetic fields from pumps located in reservoirs. It has a tested back lit LCD display and that is bright enough to easily see but not strong enough to cause problems with flowering plants. It has both, a temperature and pH electrode for superior accur... Note: Calibration Buffer Solutions are available separately. — Ships via UPS from Portland, Oregon USA...more.
Accurate PPM 9 This continuous PPM monitor is rugged in design and function. The meter displays both PPM and temperature and is unaffected by electromagnetic fields from pumps located in reservoirs. It has a tested back lit LCD display and that is bright enough to easily see but not strong enough to cause problems with flowering plants. It has both, a temperature and PPM electrode for superior ac... — Ships via UPS from Portland, Oregon USA...more.
Milwaukee pH Meter BEM101 Milwaukee Instruments pH Meter - BEM101
Standard pH mini-bench meter for quick and reliable measurements.
Double junction electrode with 1 meter cable
Manual calibration 2 points
Faster Processor with The New Chipset and Motherboard
100% Larger & Easier To Read LED Display
Smaller, Ergonomic & Lighter Case Design
Includes: 9vDC power suppl... Note: Calibration Buffer Solutions are available separately....more.
HANNA REPLACEMENT PROBE (HI1285-0) Special Order FOR Hanna Waterproof pH/EC/TDS Meter (Model HI 9813-0)
HI 9813-0 allows you to measure pH, EC (conductivity) and TDS with just one instrument! This meter has a full-spectrum pH measurement range.
The EC range goes to 4.00 mS/cm. In the TDS range, both instruments use a conversion factor from 0.56 to 0.72 for fertilizer readings, to ensure your measurements fully conform to in... ...more.
DiST 5 Waterproof Meter. Hanna Instruments model HI 98311. TDS ( reads in PPM), EC and temperature meter tester. Waterproof and designed to float. Feels great in your hand. Very stylish and modern. Low battery indicator. A great buy.... — Ships via UPS from Portland, Oregon USA...more.
Hanna pHep 5 pH Pen (HI 98128) Hanna pHep 5 pH Pen (HI 98128) (eco-5522C)Hanna Gro'CHEK pHEP 5 Meter
The pHep 4 and pHep 5 includes features such as a dual-level LCD, battery level indicator, replaceable pH electrode cartridge, instability indicator, automatic shut-off and automatic calibration all in a floating, waterproof casing.
pHep 5
pHep 5 is the most
advanced pH tester on
the market today. Has ... Note: Calibration Buffer Solutions are available separately. — Ships from Seattle, Washington USA — FREE shipping when ordering $75 or more of qualifying items....more.
BLUELAB® TRUNCHEON™ SOIL pH REPLACEMENT PROBE (SPECIAL ORDER ONLY) For BlueLab Soil pH Meter
SOIL PH METER REPLACEMENT PROBE ONLY(SO)
About the meter:
If you need to measure the pH level of soil, media or substrates, then the Bluelab® Soil pH Meter is just what you need! Our meter can be used by everybody from the home enthusiast to commercial growers. 5 year Bluelab® Guarantee (6 month for probe).
Quality soil pH probe included.
Supplied i... — FREE shipping when ordering $75 or more of qualifying items....more.
Meters, Timers & Instruments 
