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Hanna Conductivity Standard Solutions, 230 mL
Prices start at : 16.99 USD / each

Find your desired S/cm value below. Hanna prints the lot number and expiration date on each bottle. Each unopened bottle of solution has an expiration date of 5 years from the date of manufacture.

Specs

    • S/cm value: Varies— see individual product page for details: Specs
    • Size: 230 mL: Specs
    • uS/cm Value: 1413 uS/cm at 25° C
    • Weight: 0.55 pounds: Specs
    • Certificate of analysis included: Product Features
    Ohio
    Piqua
    Quick Calibration Solution for Hanna pH and EC Meters, 230 mL
    Prices start at : 16.99 USD / each

    Each unopened bottle has an expiration date of 5 years from the date of manufacture. Hanna Instruments specially formulated their line of calibration solutions. Using the Quick Cal function found in compatible meters allows for single-point calibration...

    Product Features

      Specs

        • Expiration date and lot number stamped on bottle: Product Features
        • EC calibration standard value: 5,000 μS/cm (5.00 mS/cm): Specs
        • Two calibration solutions in one: Product Features
        • Weight: 0.55 pounds: Specs
        Ohio
        Piqua
        PH Electrode for Hanna Instruments HI98131 & HI98129
        Prices start at : 59.99 USD / each

        This cartridge features two o-rings that maintain a watertight seal. Simply lock the unit into place — no pins to line up means that you are less likely to break it! Use this spare pH sensor for the following Hanna Instruments models: HI98131 — GroLine...

        Specs

          • Tip shape: spherical: Specs
          • pH: 0 to 14: Specs
          • Max pressure: 0.1 bar: Specs
          • Diameter: 5 mm: Specs
          • Recommended operating temperature: -5 to 50° C (23 to 122° F): Specs
          • Body material: Polypropylene: Specs
          Ohio
          Piqua
          Understanding Soil Testing
          The reason for sampling several spots is that since soil is in continuous movement from gravity, moisture, root growth, shade, earthworms, microbes and more, the overall sample will be a better representation of my soil.
          California
          El Segundo
          Soil Thermometer with Probe Sheath
          Prices start at : 5.99 USD / each

          Limited 1 year warranty. Weather resistant 7in stainless steel stem is the perfect instrument to tell you when the soil temperature is at optimal conditions for planting seedlings and seeds.

          Specs

            • 1 Year Limited Mfg Defect Warranty: Specs
            • Weather resistant: Specs
            • 7 inch stainless steel stem: Specs
            Ohio
            Piqua
            Irrometer Moisture Monitor For Soilless Mixes 6in
            Prices start at : 89.59 USD / each

            Suited for conditions where rapidly changing moisture tensions needed to be observed! The Irrometer Miniature "LT" (Low Tension) instrument is designed for use in situations where tensions above 30 centibars (kilopascals) are rarely expected, and where...
            Ohio
            Piqua
            Hanna GroChek pH/EC/TDS Meter with CAL-Check
            Prices start at : 205.99 USD / each

            Product requires 1 9-volt battery (included with the meter). The GroChek measures pH, EC, and TDS ranges. It is perfect for use in hydroponics, greenhouses, farms, or nurseries. Refer to the manual for probe and unit maintenance, calibration, and care...

            Specs

              Product Features

                • pH resolution: 0.01 pH: Specs
                • Temp range: 0.0 to 60.0° C/32.0 to 140.0° F: Specs
                • Temp resolution: 0.1° C/0.1° F: Specs
                • TDS accuracy: ± 2% F.S.: Specs
                • Waterproof: Product Features
                • CAL-Checktm ensures the accuracy of the meter: Product Features
                Ohio
                Piqua
                Active Eye Universal Mobile Phone Microscope
                ★★★★★
                Prices start at : 9.49 USD / each

                It is especially recommended for gardening and plant health examinations such as pest and disease assessments. The clip can also be unscrewed from the focusing barrel and lens so that the microscope can be used independently of a mobile phone if necessary.

                Product Features

                  • Ideal magnification for pest and disease detection: Product Features
                  • Bright LED light provides perfect light in any conditions: Product Features
                  Ohio
                  Piqua
                  Bausch & Lomb Folding Pocket Magnifiers, 2 or 3 Lenses
                  Prices start at : 25.99 USD / each

                  Magnifiers utilize optical quality glass lenses that fold easily into their protective case for storage. Choose your magnification below. Bausch & Lomb's all purpose folding pocket magnifiers allow for use of single lens power, or combine the lenses for...
                  • Description: 4 to 9 times magnification; 1.1-inch to 2.5-inch focal distance; 2 lenses.
                  Ohio
                  Piqua
                  T Probe Soil Sampler
                  ★★★★★
                  Prices start at : 68.99 USD / each

                  Cut cores approximately 14 1/2" x 1". Unique 36" probe. Taper cut tip on the probe end yields clean cut samples for easier inspection, with full sample removal! 100% stainless steel.
                  • Length: 21in
                  Ohio
                  Piqua
                  GroLine Waterproof Hydroponic pH/EC/TDS/Temperature Pocket Tester
                  Prices start at : 209.99 USD / each

                  This electrode measures pH, conductivity (EC), total dissolved solids (TDS), and temperature. This pocket tester uses a single electrode. If so, Hanna Instruments has what you need! Hanna Instruments designs their GroLine HI98131 model to fit in your...

                  Specs

                    • EC accuracy: ± 2% F.S.: Specs
                    • Battery type: 1.5-volt (4): Specs
                    • EC range: 0.00 to 6.00 mS/cm: Specs
                    • High-accuracy EC/TDS graphite probe: Product Features
                    • pH range: 0.00 to 14.00 pH: Specs
                    • pH accuracy: ± 0.01 pH: Specs
                    Ohio
                    Piqua
                    Hanna Instruments pH 7 Calibration Solution, 500 ml
                    Prices start at : 19.99 USD / each

                    If you measure values below pH 7, use pH 4 as a second buffer. If you measure values above pH 7, this is the only calibration you need. Dip the pH electrode into pH 7.01 solution as a first buffer and wait for unit to stabilize to 7.01 pH.
                    Ohio
                    Piqua
                    Kelway PH and Moisture Tester
                    Prices start at : 143.99 USD / each

                    Kelway pocket size soil tester needs no chemicals - simply insert in soil for instant reading! Push button switch for measuring pH ranges from 3.5 to 8. Also measures soil moisture.
                    Ohio
                    Piqua
                    Direct Soil and Soilless Media pH Electrode for Hanna Instruments HI9814
                    Prices start at : 209.99 USD / each

                    For use with HI9814 Meter only! This pH electrode allows for the direct measurement of pH in soil and soilless media. These features compensate for temperature when taking pH readings.

                    Specs

                      Product Features

                        • Triple ceramic junction: Product Features
                        • Overall length: 175.5 mm: Specs
                        • pH: 0 to 12: Specs
                        • Low-temperature glass: Product Features
                        • Built-in temperature sensor: Product Features
                        • Recommended operating temperature: -5 to 70° C (23 to 158° F) - LT: Specs
                        Ohio
                        Piqua
                        Hydrofarm Quantum PAR Light Meter
                        Prices start at : 162.99 USD / each

                        It features Hydrofarm's highly accurate, integrated Quantum Sensor. This mode ensures an accurate reading no matter what the light source. Perfect for greenhouse or hydroponics operations! The Quantum PAR light meter is a fully portable handheld PAR meter.

                        Product Features

                          • Proprietary data logging sofware available at Hydrofarm.com: Product Features
                          • Constant linear response curve yields higher accuracy independent of wavelength: Product Features
                          • Data logging capability using USB cable (included): Product Features
                          • Automatic sun or electric light calibration modes ensure accurate readings regardless of light source: Product Features
                          Ohio
                          Piqua
                          Meter Dual PH and Fertilizer Tester
                          Prices start at : 24.99 USD / each

                          Directions include desired range for 350 plants; new lawn seeding, agriculture crops, small and large fruits, vegetables, herbs, and many more indoor/outdoor plants. Accurately determines acid/alkaline soil composition in just one minute.
                          Ohio
                          Piqua
                          Hanna Combo pH/EC/TDS/Temperature PPM Tester
                          Prices start at : 159.99 USD / each

                          Add a few drops of storage solution to the protective cap when storing the meter. All pH and EC/TDS readings are automatically temperature compensated. When you have finished with the unit, rinse the electrode with water to minimize contamination.

                          Product Features

                            • Battery percentage displayed at startup: Product Features
                            • Automatic shut-off: Product Features
                            • Replaceable pH electrode cartridge: Product Features
                            • Waterproof and designed to float: Product Features
                            • Renewable cloth junction: Product Features
                            • BEPS (Battery Error Prevention System): Product Features
                            Ohio
                            Piqua
                            Hanna General-Purpose Cleaning Solution, 230 mL
                            Prices start at : 16.99 USD / each

                            Keep your electrodes clean! A dirty electrode produces inaccurate results. This ensures that the probe is always clean and prevents any clogging of the junction. Use Hanna Instruments cleaning solution to keep them clean! Residue builds up on your electrode...

                            Specs

                              • Weight: 0.55 pounds: Specs
                              • Volume: 230 mL: Specs
                              • Printed expiration date and lot number: Product Features
                              Ohio
                              Piqua
                              Soil Moisture Meter Top Read 9in Probe
                              Prices start at : 107.99 USD / each

                              A handy 9" probe length. Perfect for potted plants! Meters can be calibrated to the soil type for reliable results. The scientific way to water! Accurate instruments give you instant, accurate moisture readings.
                              Ohio
                              Piqua
                              Hanna Instruments pH 4 Calibration Solution, 500 ml
                              Prices start at : 19.99 USD / each

                              Then use 4.01 as a second buffer solution and wait for your meter to stabilize to 4.01. Discard buffers after each use. Dip the pH electrode into pH 7.01 solution as a first buffer and wait for unit to stabilize to 7.01 pH.
                              Ohio
                              Piqua
                              Irrometer Moisture Monitor Field Application
                              Prices start at : 116.19 USD / each

                              Gauge readings 0-100 centibar. Low readings indicate waterlogged soil that has inadequate root aeration. Replaceable ceramic tip. High readings indicate very low levels of moisture inhibiting maximum plant growth.Measures the amount of water available...
                              • Length: 12 in
                              Ohio
                              Piqua
                              4-Way Soil Analyzer Meter
                              ★★★★★
                              Prices start at : 34.99 USD / each

                              That's why a cleaning pad is included. How the meter works: The pH meter works by using different metals in the probes. Identifies light levels to help you find the perfect spot for shade, part shade, and sun plantings.
                              Ohio
                              Piqua
                              Shockproof Rubber Boot for Hanna Instruments HI9814
                              Prices start at : 35.99 USD / each

                              It also makes it easier for you to hold your instrument! This boot withstands high temperatures of up to 200° C (392° F). Hanna makes this boot in our signature A.M. Leonard orange color! This special boot helps prevent damage due to accidental impact.

                              Product Features

                                • Enhanced shockproof protection: Product Features
                                • Made of durable silicone rubber: Product Features
                                • Fits Hanna meters that measure 6.0 inches x 2.3 inches x 1.2 inches: Product Features
                                Ohio
                                Piqua
                                Hanna Electrode Storage Solution, 230 mL
                                Prices start at : 16.99 USD / each

                                Maintaining both a hydrated layer and clear junction results in a faster and more reliable measurement. This solution ensures optimum performance of your pH and ORP electrodes. It also prevents any diffusion/osmotic effects.

                                Specs

                                  • Air tight seal ensures quality: Product Features
                                  • Weight: 0.55 pounds: Specs
                                  • Volume: 230 mL: Specs
                                  Ohio
                                  Piqua
                                  Hanna pH Calibration Buffers, 230 mL
                                  Prices start at : 16.99 USD / each

                                  Find your desired pH value below. Hanna prints the lot number and expiration date on each bottle. Each unopened bottle of solution has an expiration date of 5 years from the date of manufacture.

                                  Specs

                                    Product Features

                                      • Accuracy: ± 0.02pH at 25° C: Specs
                                      • pH value: Varies — see individual product page for details: Specs
                                      • Temperature chart / actual pH values printed on each bottle: Product Features
                                      • Volume: 230 mL: Specs
                                      • Airtight bottle with tamper-proof seal: Product Features
                                      Ohio
                                      Piqua
                                      GroLine Waterproof Hydroponics pH/EC/TDS/Temperature Portable Meter
                                      Prices start at : 259.99 USD / each

                                      If so, Hanna Instruments has what you need! Hanna Instruments designs their GroLine meters and testers to be lightweight. This kit includes: HI1285-7 multi-parameter probe (click HERE for a replacement probe) Quick calibration solution sachets (3) Electrode...

                                      Specs

                                        Product Features

                                          • TDS accuracy: ± 2% F.S.: Specs
                                          • Weight: 205 grams (7.2 ounces): Specs
                                          • Temperature resolution: 0.1° C / 0.1° F: Specs
                                          • Dimensions: 152 mm x 58 mm x 30 mm (6 inches x 2.3 inches x 1.2 inches): Specs
                                          • 3-in-1 amplified probe —: Product Features
                                          • Measures pH, EC, TDS, and temperature: Product Features
                                          Ohio
                                          Piqua
                                          Irrometer Moisture Monitor For Soilless Mixes
                                          Prices start at : 151.49 USD / each

                                          The Model "LT" is the ultimate in sensitivity at the very "Wet" end of the soil water range(below 20 centibars of soil water suction)! It was designed to operate in very low water holding capacity soils (coarse sand) and non-soil planting mixes used in...
                                          • Length: 12in
                                          Ohio
                                          Piqua
                                          Agricultural market place, farms, farmers, land