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Hanna Checkers

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  • ORP/pH/Temperature Tester (HI98121)  - Hanna Instruments

    ORP/pH/Temperature Tester (HI98121) - Hanna Instruments

    Hanna Instruments

    $239.99
    The HI98121 is a waterproof pH, ORP and temperature meter. The housing of this tester has been completely sealed against humidity and is designed to float. Electrode replacement with the stainless steel round connector means there are no pins to bend or...
  • Pure Water Tester (HI98308) - Hanna Instruments

    Pure Water Tester (HI98308) - Hanna Instruments

    Hanna Instruments

    $89.99
    The HI98308 Pure Water tester is a rugged and reliable pocket-sized tester that offers quick and accurate readings. The HI98308 Pure Water tester features graphite electrodes to reduce polarization effects and an exposed temperature probe for fast...
  • HI-7030M Conductivity Solution, (230 mL) bottle - Hanna Instruments

    HI-7030M Conductivity Solution, (230 mL) bottle - Hanna Instruments

    $11.99
    Maximum accuracy is high on the agenda here at Hanna. Browse our Conductivity Calibration Solutions specifically produced for Conductivity meters and electrodes. Hanna conductivity electrodes can be calibrated in just a few minutes, wherever you are...
  • Professional Reef Digital Checker Kit - Hanna

    Professional Reef Digital Checker Kit - Hanna

    Hanna Instruments

    $329.99
    Take the Guesswork Out of Your Reef Tank Maintenance with the Hanna Instruments Reef Professional Kit Achieve the stable and pristine water parameters your corals need to thrive with the Hanna Instruments Reef Professional Kit. This all-in-one...