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Bluelab 2.77 EC Conductivity Solution 500 mL
Price: $24.09
Availability: In Stock
BlueLab Item #: 3602 -

    The 2.77EC solution is used as a reference or checking solution to ensure you have adequately cleaned the EC/ppm probe. Calibration Solution should be stored in a cool place out of direct sun and heat. Please keep out of reach of children. They should be stored with the lids securely tightened.""

    Bluelab Carry Case
    Price: $29.90
    Availability: Out of Stock
    BlueLab Item #: 4421 -

      The sturdy Bluelab Carry Case is an essential companion for your Bluelab meter. Not only does this case have a firm outer casing, which offers impact resistance, but there are also two pockets in the top of the case specially designed for your probes. This case’s removable and adjustable shoulder strap provides comfort and convenience. When you’re using your meter, simply place the strap over your shoulder, hold onto the carry case (with the meter inside) and place your probes into the...

      Bluelab Combo Meter
      Price: $278.21
      Availability: In Stock
      BlueLab Item #: 1632 -

        The Bluelab Combo Meter is a conductivity, pH and temperature meter all-in-one. As the Bluelab Combo Meter is portable and does not require a power supply to operate, it can be used anytime and anywhere to help you manage your crops' daily nutrient requirements. Simple push button pH calibration. Successful pH calibration indicators. Low battery indicator. Over range and under range indicators. Display options available in degrees °C and °F, EC, CF, ppm 500 and ppm 700. Supplied with 2x AAA...

        Bluelab KCI Probe Storage Solution 250 mL
        Price: $25.73
        Availability: In Stock
        BlueLab Item #: 7681 -

          The perfect solution to store and hydrate your Bluelab pH products. Bluelab pH Probe KCl Storage Solution is made specifically for use with Bluelab pH products. It is designed to increase response time and maximize the life of Bluelab pH pens and pH probes. For best results, use the KCl solution to store the pH pen/probe after use and hydrate monthly. Bluelab pH Probe KCl Storage Solution is manufactured to high laboratory standards.

          Bluelab KCI Storage Solution 100 mL
          Price: $17.12
          Availability: Out of Stock
          BlueLab Item #: 3335 -

            The perfect solution to store and hydrate your Bluelab pH products. Bluelab pH Probe KCl Storage Solution is made specifically for use with Bluelab pH products. It is designed to increase response time and maximize the life of Bluelab pH pens and pH probes. For best results, use the KCl solution to store the pH pen/probe after use and hydrate monthly. Bluelab pH Probe KCl Storage Solution is manufactured to high laboratory standards.

            Bluelab pH 4.0 & 7.0 Calibration Solution 500 mL (Combo)
            Price: $37.78
            Availability: In Stock
            BlueLab Item #: 7986 -

              Calibration and conductivity standard solutions... a must in every grower's toolbox. The Bluelab calibration and conductivity standard solutions are essential for use with all Bluelab products for the calibration of pH and testing the cleanliness of the Bluelab Conductivity/Temperature probe. Bluelab solutions are manufactured specifically for Bluelab products and are referenced to high laboratory standards to ensure your Bluelab products last longer and maintain accuracy.

              Bluelab pH 4.0 Calibration Solution 250 mL
              Price: $13.89
              Availability: In Stock
              BlueLab Item #: 1626 -

                "pH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings. pH instruments are calibrated to pH 7.0 first (buffer) then to pH 4.0 (slope). Calibration Solution should be stored in a cool place out of direct sun and heat. They should be stored with the lids securely tightened."

                Bluelab PH 4.0 Calibration Solution 500 mL
                Price: $24.10
                Availability: In Stock
                BlueLab Item #: 2737 -

                  pH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings. pH instruments are calibrated to pH 7.0 first (buffer) then to pH 4.0 (slope). Calibration Solution should be stored in a cool place out of direct sun and heat. They should be stored with the lids securely tightened.""

                  Bluelab pH 4.0, pH 7.0, EC 2.77 Calibration Solution 500 mL (Combo)
                  Price: $42.69
                  Availability: In Stock
                  BlueLab Item #: 7984 -

                    Calibration and conductivity standard solutions... a must in every grower's toolbox. The Bluelab calibration and conductivity standard solutions are essential for use with all Bluelab products for the calibration of pH and testing the cleanliness of the Bluelab Conductivity/Temperature probe. Bluelab solutions are manufactured specifically for Bluelab products and are referenced to high laboratory standards to ensure your Bluelab products last longer and maintain accuracy. Bluelab's EC/CF...

                    BlueLab pH 4.0, pH 7.0, EC 2.77 Calibration Solution250 mL (Combo)
                    Price: $32.21
                    Availability: In Stock
                    BlueLab Item #: 7983 -

                      PH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings. pH instruments are calibrated to pH 7.0 first (buffer) then to pH 4.0 (slope). Calibration Solutions should be stored in a cool place out of direct sun and heat. They should be stored with the lids securely tightened. The EC2.77 solution is used as a reference or checking solution to ensure you have adequately cleaned the EC/ppm probe. Calibration Solutions should be stored in...

                      Bluelab pH 7.0 Calibration Solution 250 mL (6 Count)
                      Price: $13.87
                      Availability: In Stock
                      BlueLab Item #: 1773 -

                        pH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings. pH instruments are calibrated to pH 7.0 first (buffer) then to pH 4.0 (slope). Calibration Solution should be stored in a cool place out of direct sun and heat. They should be stored with the lids securely tightened.

                        Bluelab pH 7.0 Calibration Solution 250 mL (6 Count)
                        Price: $58.36
                        Availability: In Stock
                        BlueLab Item #: 8008 -

                          pH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings. pH instruments are calibrated to pH 7.0 first (buffer) then to pH 4.0 (slope). Calibration Solution should be stored in a cool place out of direct sun and heat. They should be stored with the lids securely tightened.

                          Bluelab PH 7.0 Calibration Solution 500 mL
                          Price: $24.10
                          Availability: In Stock
                          BlueLab Item #: 2738 -

                            pH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings. pH instruments are calibrated to pH 7.0 first (buffer) then to pH 4.0 (slope). Calibration Solution should be stored in a cool place out of direct sun and heat. They should be stored with the lids securely tightened.""

                            Bluelab pH Pen
                            Price: $102.09
                            Availability: In Stock
                            BlueLab Item #: 1712 -

                              Measures pH and temperature. Selectable units for °C and °F. Backlit LCD display. Double junction probe (not replaceable). Successful calibration indicator. Hold reading function and low battery warning. Fully waterproof with auto off function. Automatic temperature compensation. Along with Bluelab pH Probe KCI Solution, Bluelab pH 7 and Bluelab pH 4 Solution Sachets are now included. Range: 0.0–14.0 pH/0–50°C/32°–122°F. Resolution: 0.1 pH/1°C/1°F. Accuracy @ 25°C: ±0.1 pH. Battery type: 1 x...

                              Bluelab Replacement pH Probe
                              Price: $76.12
                              Availability: In Stock
                              BlueLab Item #: 1722 -

                                Adjustable brightness display. Large easy-to-read, plant-safe green LED displays. Selectable values for conductivity and temperature. Simple push button pH calibration system. No calibration required for conductivity and temperature. Silent alarm for both high and low settings. Settings retained when power lost (non-volatile memory). Temperature compensation. An international power supply. Water-resistant design. 2 year Bluelabᆴ Guarantee (6 months on probe).

                                HM Digital COM-80
                                Price: $36.31
                                Availability: In Stock
                                HM Digital Item #: 5023 -

                                  The COM-80 is an economically priced, reliable EC/TDS meter that is ideal for testing applications such as hydroponics & gardening, pools & spas, aquariums & reef tanks, water ionizers, drinking water and more.

                                  HM Digital HydroMaster HM-500
                                  Price: $274.21
                                  Availability: Out of Stock
                                  HM Digital Item #: 4223 -

                                    HydroMaster Digital testers make monitoring water easier than ever by reading the levels that matter most and providing accurate readings that you can depend on. Continuous pH/EC/TDS/Temp monitor with rechargeable battery. Portable, wall mount, or benchtop use.

                                    Hormex B1 8 Oz Concentrate
                                    Price: $20.68
                                    Availability: In Stock
                                    Hormex Item #: 102 -

                                      Hormex is a vitamin, hormone concentrate and root growth stimulant, and has been a household name amongst the horticultural community for almost 50 years. It prevents transplant shock by stimulating growth of the small feeder roots, which become damaged during transplanting.

                                      Hormex Rooting Hormone Powder # 8 0.75 Oz
                                      Price: $21.01
                                      Availability: In Stock
                                      Hormex Item #: 7763 -

                                        Hormex Rooting Powders

                                        Hormex Rooting Hormone Powder #3 0.75 Oz
                                        Price: $16.11
                                        Availability: In Stock
                                        Hormex Item #: 7723 -

                                          Hormex offers a choice of five hormone-based “Hormogenized™” Rooting Powders. After 50 years it’s still the finest root producing powder and the only rooting powders to offer 5 strengths for every rooting variety and propagating condition.

                                          Hydrofarm Autopilot Desktop CO2 Monitor & Data Logger
                                          Price: $122.18
                                          Availability: In Stock
                                          HydroFarm Item #: 7549 -

                                            The Autopilot APCEM2 Desktop CO2 Monitor is patent pending, featuring a hook-and-loop fastener along the back that can securely affix a rectangular external battery pack. By maximizing mobility, the device can be easily moved to any room—living room, kitchen, office—to monitor IAQ virtually anywhere. The Autopilot APCEM2 Desktop CO2 Monitor can be powered by almost any standard USB port that provides power, such as a laptop, a wall adapter, or an external mobile battery pack (PowerBank)....