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Meters & Testing

pH Meters & Test Kits pH METERS & TEST KITS
PPM/TDS & EC Meters PPM/TDS & EC METERS
Combination Meters COMBINATION METERS
Nutrient & pH Dosing NUTRIENT & pH DOSING
Calibration & Maintenance Solutions CALIBRATION & MAINTENANCE SOLUTIONS
Replacement Probes & Accessories REPLACEMENT PROBES & ACCESSORIES
pH Up & Down pH UP & DOWN
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182 items

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  1. Add to Compare
    pH Test Kit SKU #: 6150
    Rating:
    0%
    $4.85
  2. Add to Compare
    pH Control Kit w/Up & Down SKU #: 6138
    Rating:
    0%
    $12.78
  3. Add to Compare
    GH pH Test Indicator 8 oz SKU #: 11196
    Rating:
    0%
    $8.16
  4. Add to Compare
    GroLine pH Tester SKU #: 8779
    Rating:
    0%
    was $70.00 Special Price $56.00
  5. Add to Compare
    GroLine pH Tester - Waterproof SKU #: 9669
    Rating:
    0%
    was $99.95 Special Price $73.50
  6. Add to Compare
    GroLine Soil Test™ Direct Soil & Hydroponic EC Tester SKU #: 6398
    Rating:
    0%
    was $149.95 Special Price $119.96
  7. Add to Compare
    GroLine Soil pH Tester SKU #: 10433
    Rating:
    0%
    was $150.00 Special Price $106.95
  8. Add to Compare
    GroLine Waterproof Portable pH/EC/TDS/Temperature Meter SKU #: 8776
    Rating:
    0%
    was $264.95 Special Price $259.96
  9. Add to Compare
    GroLine Shockproof Green Rubber Boot for HI9814 Combo Meter- GEN 1 SQUARE MODEL SKU #: 8780
    Rating:
    0%
    $33.20
  10. Add to Compare
    GroLine Shockproof Green Rubber Boot for HI9814 Combo Meter - Gen 2 Round Model SKU #: 13055
    Rating:
    0%
    was $41.95 Special Price $29.95
  11. Add to Compare
    GroLine Continuous Nutrient Monitor and Datalogger SKU #: 9670
    Rating:
    100%
    1  Review
    was $459.95 Special Price $367.96
  12. Add to Compare
    Hanna pH/EC/TDS/Temp Portable Meter - NEWEST MODEL SKU #: 14472
    Rating:
    0%
    $237.96
  13. Out of stock
    Add to Compare
    Hanna pH/EC/TDS/Temp Portable Meter SKU #: 6389
    Rating:
    0%
    $237.96
  14. Add to Compare
    Hanna pHep4 Waterproof pH Meter SKU #: 6386
    Rating:
    0%
    $106.20
  15. Add to Compare
    Hanna pHep5 Waterproof pH Meter SKU #: 6387
    Rating:
    0%
    $117.00
  16. Add to Compare
    GroLine Combo Waterproof pH/EC/TDS/Temperature Tester SKU #: 9448
    Rating:
    0%
    was $259.95 Special Price $185.95
  17. Add to Compare
    Hanna Combo Waterproof pH/EC/TDS/Temp Meter SKU #: 6388
    Rating:
    100%
    1  Review
    $170.63
  18. Add to Compare
    Hanna Water Resistant DO Meter w/ ATC SKU #: 6378
    Rating:
    0%
    $479.40
  19. Add to Compare
    Hanna Digital Light Meter SKU #: 6382
    Rating:
    0%
    $156.63
  20. Add to Compare
    GroLine Replacement Electrode for HI9813 Portable pH/EC/TDS/Temperature Meter SKU #: 8777
    Rating:
    0%
    was $180.00 Special Price $144.00
  21. Add to Compare
    GroLine pH/EC/TDS Multiparameter Probe for the HI981420 GroLine Monitor SKU #: 12899
    Rating:
    0%
    was $200.00 Special Price $149.00
  22. Add to Compare
    Hanna Replacement Electrode for Checker SKU #: 6438
    Rating:
    0%
    $28.05
  23. Add to Compare
    Groline HI1285-9 Multiparameter pH/EC/PPM In-line electrode SKU #: 12960
    Rating:
    0%
    was $335.00 Special Price $268.00
  24. Add to Compare
    Hanna Replacement pH/EC/PPM electrode for HI9813-61 SKU #: 14473
    Rating:
    0%
    $120.70
  25. Add to Compare
    Hanna Replacement pH/EC/PPM electrode for HI9813-6 SKU #: 6441
    Rating:
    0%
    $113.90
  26. Add to Compare
    Groline Direct Soil and Soilless Media pH electrode for HI9814 SKU #: 14849
    Rating:
    0%
    was $250.00 Special Price $200.00
  27. Add to Compare
    Hanna Replacement pH Electrode - Cartridge SKU #: 6443
    Rating:
    0%
    $63.75
  28. Add to Compare
    Hanna Replacement EC/TDS Cartridge SKU #: 6730
    Rating:
    0%
    $59.50
  29. Add to Compare
    Hanna pH Electrode w/BNC and 3' Cord SKU #: 6442
    Rating:
    0%
    $59.50
  30. Add to Compare
    GroLine pH Storage Solution - 230 ml SKU #: 6429
    Rating:
    100%
    1  Review
    was $20.00 Special Price $16.00
  31. Add to Compare
    GroLine pH Storage Solution - 500 ml SKU #: 6428
    Rating:
    0%
    was $24.00 Special Price $19.20
  32. Add to Compare
    GroLine Electrode Cleaning Solution - 20 ml Sachet SKU #: 6423
    Rating:
    0%
    was $1.84 Special Price $1.47
  33. Add to Compare
    Groline Electrode Cleaning solution - 230ml SKU #: 6434
    Rating:
    0%
    was $20.00 Special Price $16.00
  34. Add to Compare
    Groline Electrode Cleaning solution - 500mL bottle SKU #: 10432
    Rating:
    0%
    was $24.00 Special Price $19.20
  35. Add to Compare
    GroLine 1413 µS/cm Conductivity Standard with Certificate - 230ml SKU #: 12961
    Rating:
    0%
    was $20.00 Special Price $16.00
  36. Add to Compare
    Hanna Cal Check solution - 20ml Sachet SKU #: 6413
    Rating:
    0%
    $1.48
  37. Add to Compare
    Quick Cal Solution Solution for GroLine pH and EC Meters - 20 mL Sachet SKU #: 8778
    Rating:
    0%
    was $1.80 Special Price $1.44
  38. Add to Compare
    Quick Cal Solution Solution for GroLine pH and EC Meters - 230 ml SKU #: 9515
    Rating:
    0%
    was $20.00 Special Price $16.00
  39. Add to Compare
    Quick Cal Solution Solution for GroLine pH and EC Meters - 500 ml SKU #: 9516
    Rating:
    0%
    was $24.00 Special Price $17.25
  40. Add to Compare
    GroLine pH 4.01 Calibration Solution - 230ml SKU #: 6422
    Rating:
    0%
    was $20.00 Special Price $16.00
  41. Add to Compare
    GroLine pH 4.01 Calibration Solution - 500ml SKU #: 6833
    Rating:
    0%
    was $23.00 Special Price $18.40
  42. Add to Compare
    GroLine pH 7.01 Calibration Solution - 20 mL Packet SKU #: 13170
    Rating:
    0%
    was $1.84 Special Price $1.47
  43. Add to Compare
    GroLine pH 4.01 Calibration Solution - 20 mL Packet SKU #: 13195
    Rating:
    0%
    was $1.84 Special Price $1.47
  44. Add to Compare
    Groline pH 7.01 Calibration Solution - 230ml SKU #: 6426
    Rating:
    0%
    was $20.00 Special Price $16.00
  45. Add to Compare
    GroLine pH 7.01 Calibration Solution - 500ml SKU #: 6834
    Rating:
    0%
    was $24.00 Special Price $19.20
  46. Add to Compare
    Hanna 1382 PPM Calibration Solution - 20 mL Sachet SKU #: 6420
    Rating:
    0%
    $1.22
  47. Add to Compare
    Hanna 1413 mS/cm Calibration Solution - 20ml Sachet SKU #: 6419
    Rating:
    0%
    $1.22
  48. Add to Compare
    Hanna 1500 ppm TDS Calibration Solution - 20 mL Sachet SKU #: 6432
    Rating:
    0%
    $1.22
  49. Add to Compare
    Autogrow IntelliDose Complete Kit SKU #: 6486
    Rating:
    0%
    $1,428.00
  50. Add to Compare
    Bluelab IntelliDose Controller Kit SKU #: 14853
    Rating:
    0%
    $1,199.14
  51. Out of stock
    Add to Compare
    Autogrow IntelliDose Complete Kit w/3x Peristaltic Pumps SKU #: 9827
    Rating:
    0%
    $1,699.95
  52. Add to Compare
    Autogrow IntelliLink Kit SKU #: 9736
    Rating:
    0%
    $171.36
  53. Add to Compare
    Bluelab IntelliLink Kit SKU #: 14854
    Rating:
    0%
    $162.00
  54. Add to Compare
    Autogrow Quick Change Small Peristaltic Pump - 450ml/min SKU #: 11311
    Rating:
    0%
    $330.03
  55. Add to Compare
    Autogrow Quick Change Large Peristaltic Pump - 1400ml/min SKU #: 11312
    Rating:
    0%
    $482.35
  56. Add to Compare
    Autogrow EC Mini-Doser System Complete w/2x Peristaltic Pumps SKU #: 9830
    Rating:
    0%
    $611.15
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182 items

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Meters & Testing
  1. pH Meters & Test Kits
  2. PPM/TDS & EC Meters
  3. Combination Meters
  4. Nutrient & pH Dosing
  5. Calibration & Maintenance Solutions
  6. Replacement Probes & Accessories
  7. pH Up & Down
  8. Measuring Devices

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