Timers, Meters & Solutions

  • 1500PPM TDS Sol 16oz

    Hanna Instruments' calibration solution, ideal for gardening, laboratory work, and field experiments. Comes in packaging designed to keep air and light from damaging the solution.

    $19.99 $18.99
  • 7 Day Dual Outlet Digital Timer

    Using a timer to automate your lighting adds convenience and encourages productive growth with consistent hours of light. Timers are also essential for many hydroponic system applications. This model has two outlets. Features 1 second on/off Up to...

    $18.95 $11.99
  • Bluelab 2.77EC  Conductivity Solution 250 ml

    Bluelab 2.77EC Conductivity Solution 250 ml

    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 a cool place out of direct sun and heat. Please keep out of reach of children. They should be...

    $8.15 $7.99
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  • Bluelab 2.77EC Conductivity Solution 500 ml

    Bluelab 2.77EC Conductivity Solution 500 ml

    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 a cool place out of direct sun and heat. Please keep out of reach of children. They should be...

    $11.00 $10.99
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  • Bluelab Combo Meter

    Bluelab Combo Meter

    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...

    $299.00 $289.99
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  • Bluelab Conductivity Pen

    Bluelab Conductivity Pen

    Measures conductivity and temperature. Selectable units for conductivity and temperature. Backlit LCD display with low battery warning. Successful calibration indicator and calibration is optional. Fully waterproof. Auto off function and hold reading...

    $94.00 $92.99
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  • Bluelab Guardian Monitor

    Bluelab Guardian Monitor

    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...

    $399.00 $349.99
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  • Bluelab Leap pH Probe (Probe Only)

    Bluelab Leap pH Probe (Probe Only)

    The perfect, portable way to accurately measure and monitor pH levels in a wide range of media. We have combined the Bluelab® Multimedia pH Meter and Bluelab® Leap pH Probe to take fast accurate measurements in nutrient solution, soil, coco coir,...

    $120.00 $68.99
  • Bluelab Nutrient Probe Care Kit Conductivity

    Bluelab Nutrient Probe Care Kit Conductivity

    The instrument is only as accurate as the probe is clean. Probe cleaning is one of the most important parts of owning or operating any Bluelab® meter, monitor or controller. If the probe is contaminated or dirty, it affects the accuracy of the reading...

    $11.90 $11.89
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  • Bluelab Original Truncheon Meter

    Bluelab Original Truncheon Meter

    With its super tough, high quality, fully waterproof design, no calibration required, daylight readable blue LED's and no on/off buttons to worry about, the Bluelab Truncheon® Nutrient Meter has proven itself as the world's favorite nutrient meter. It is...

    $140.00 $134.99
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