| Sort by Popularity | Manufacturer | Product(s) | Model | Price+ | Buy Now |
| Hanna Instruments | Hanna Gro'Chek TDS Monitor HI 983301N
HI 983301N Gro'Chek TDS
Monitor displays
instantaneous
readings of both EC/
TDS/Temperature.
Calibration and
temperature
compensation are
automatic.... Note: Calibration Buffer Solutions are available separately. — Ships from Seattle, Washington USA...more. | eco-5521F | $85.65 | |
| Hanna Instruments | HANNA REPLACEMENT PH PROBE (HI1293) Special Order
FOR Hanna Grochek® Combo pH/EC/TDS/Temperature Monitor (Model HI 991404)
The Combo HI 991404 meter is designed for continuous, high accuracy pH, EC/TDS and temperature measurements. These microprocessor indicators continuously monitor the three most important nutrient parameters in hydroponics, greenhouses and horticultural applications with a single instrument. These indicators... Note: Calibration Buffer Solutions are available separately....more. | 716801 | $85.98 | |
| Hanna Instruments | HANNA PH INDICATOR W/ ELECTRODE (HI981401N)
Hanna Grochek® Water Resistant pH Indicator
HI 981401N has been designed to meet the Grower's need for equipment suited to the aggressive environments found in agricultural and hydroponics applications. The housing is water-resistant and features a molded eye which allows installation right above the sample to be monitored.
Measurements are highly accurate and can be verified... Note: Calibration Buffer Solutions are available separately....more. | 716805 | $86.06 | |
| Hanna Instruments | Hanna Checker Phosphate LR Reagents (300pcs)
FOR Hanna Checker - Phosphate
Easier to use and more accurate than chemical test kits
Ascorbic acid method
±0.04 ppm ±4% of reading accuracy
Large, easy to read digits
Auto shut off
Dedicated to a single parameter
Designed to work with HANNA’s reagents
Uses 10 mL glass cuvettes
Small size, big convenience
W... — FREE shipping when ordering $75 or more of qualifying items....more. | 716935 | $88.33 | |
| Hanna Instruments | Replacement probe for CalCheck Meter (HI1285-6)
Replacement probe for CalCheck Meter (HI1285-6)
Preamplified pH and EC Probe with CAL CHECK™ for use with HI 9813 Series. Recommended for greenhouses, hydroponics, environmental monitoring, water treatment, boilers and cooling towers.... — Ships from Seattle, Washington USA...more. | eco-5528D | $91.34 | |
| Hanna Instruments | Hanna Conductivity Soil Test Pen (HI 98331)
Hanna Conductivity Soil Test Pen (HI 98331) (eco-5523A)Hanna Soil Test Pen -
The HI 98331 takes quick and accurate
readings directly in soil. It is
the only meter available that will take
conductivity readings directly from the
soil without creating a soil solution
for testing. The meter also measures
temperature and the conductivity
readings are compensated for temperature... — Ships from Seattle, Washington USA...more. | eco-5523A | $95.94 | |
| Hanna Instruments | pHep®4 pH Tester (HI98127).
pHep®4 pH Testers Hanna pH hand-held meter that measures pH as well as temperature. The meter automatically compensates for solution temperature for more accurate and quick readings.Hanna ID: HI98127Dual Level Display Showing pH & Temp.Rugged, Floating Waterproof CasingReplaceable pH Electrode Featuring an Extendable JunctionThe waterproof pHep® 4 pH tester has a dual-level LCD tha... Note: Calibration Buffer Solutions are available separately. — Ships via UPS from Portland, Oregon USA...more. | HY174 | $95.98 | |
| Hanna Instruments | GroChek TDS Meter.
Hanna Gro Chek TDS Meter. Locate probe in your nutrient tank or reservoir for continuous TDS reading. A very handy device for the seriious gardener. Measured in PPM.Hanna Product Number: HI983301N ... Note: Calibration Buffer Solutions are available separately. — Ships via UPS from Portland, Oregon USA...more. | HY180 | $96.89 | |
| Hanna Instruments | Replacement Probe for HI9919404.
HANNA REPLACEMENT PROBE FOR HI9919404 EC/TDS/PH/TEMP combo meter.... — Ships via UPS from Portland, Oregon USA...more. | HY17431 | $96.89 | |
| Hanna Instruments | Hanna Gro'Chek pH Monitor HI 981401N
HI 981401N Gro'Chek Ph
Monitor gel-filled
pH electrode has been
specially designed to
address the needs of
growers. Measurements
are highly accurate and
can be verified with two
point calibration... Note: Calibration Buffer Solutions are available separately. — Ships from Seattle, Washington USA...more. | eco-5521E | $96.98 | |
| Hanna Instruments | 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. | HY181 | $101.64 | |
| Hanna Instruments | 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. | 716816 | $101.85 | |
| | Hanna Instruments | 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. | eco-5528C | $101.87 | |
| Hanna Instruments | 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. | 716836 | $103.50 | |
| Hanna Instruments | 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. | HY1742 | $104.49 | |
| Hanna Instruments | 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. | eco-5522C | $108.85 | |
