Black Friday Boo Sale Live CUPIN CODE "BlackFriday2025" Call 810.299.2900 for order $500 for Best Price
  • Home
  • Brand: Hanna Instruments

Brand: Hanna Instruments

(55)
  1. Hanna GroLine General Purpose Cleaning Solution Sachets 20 mL - EACH
    Hanna Instruments
    Hanna GroLine General Purpose Cleaning Solution Sachets 20 mL - EACH
    Special Price $2.40 Regular Price $2.66
    In stock
    • Free shipping
    • - 10 %
  2. Hanna HI9565 Thermohygrometer - Measures Temp / RH / Dewpoint
    Hanna Instruments
    Hanna HI9565 Thermohygrometer - Measures Temp / RH / Dewpoint
    Special Price $186.56 Regular Price $206.29
    Out of stock
    • Free shipping
    • - 10 %
  3. Hanna HI775 Freshwater Alkalinity Colorimeter – Checker HC
    Hanna Instruments
    Hanna HI775 Freshwater Alkalinity Colorimeter – Checker HC
    Special Price $69.84 Regular Price $77.22
    Out of stock
    • Free shipping
    • - 10 %
  4. Hanna 12880 S/ cm conductivity solution 500 mL
    Hanna Instruments
    Hanna 12880 S/ cm conductivity solution 500 mL
    Special Price $15.84 Regular Price $17.51
    In stock
    • Free shipping
    • - 10 %
  5. WHITE METER - Hanna Instruments GroLine Direct Soil pH Tester
    Hanna Instruments
    WHITE METER - Hanna Instruments GroLine Direct Soil pH Tester
    Special Price $152.44 Regular Price $168.57
    Out of stock
    • Free shipping
    • - 10 %
  6. Hanna Instruments GroLine Storage Solution Sachets 20 mL Each
    Hanna Instruments
    Hanna Instruments GroLine Storage Solution Sachets 20 mL Each
    Special Price $2.40 Regular Price $2.66
    In stock
    • Free shipping
    • - 10 %
  7. Hanna GroLine General Purpose Cleaning Solution (500 mL)
    Hanna Instruments
    Hanna GroLine General Purpose Cleaning Solution (500 mL)
    Special Price $21.30 Regular Price $23.55
    Out of stock
    • Free shipping
    • - 10 %
  8. Hanna GroLine General Purpose Cleaning Solution Sachets 20 mL (25 pcs.)
    Hanna Instruments
    Hanna GroLine General Purpose Cleaning Solution Sachets 20 mL (25 pcs.)
    Special Price $46.96 Regular Price $51.92
    Out of stock
    • Free shipping
    • - 10 %
  9. Hanna GroLine pH 7.01 Calibration Buffer (500 mL)
    Hanna Instruments
    Hanna GroLine pH 7.01 Calibration Buffer (500 mL)
    Special Price $21.30 Regular Price $23.55
    In stock
    • Free shipping
    • - 10 %
  10. Hanna GroLine pH 7.01 Buffer Sachets 20 mL (25 pcs.)
    Hanna Instruments
    Hanna GroLine pH 7.01 Buffer Sachets 20 mL (25 pcs.)
    Special Price $46.96 Regular Price $51.92
    In stock
    • Free shipping
    • - 10 %
  11. Hanna GroLine pH 4.01 Calibration Buffer (500 mL)
    Hanna Instruments
    Hanna GroLine pH 4.01 Calibration Buffer (500 mL)
    Special Price $21.30 Regular Price $23.55
    Out of stock
    • Free shipping
    • - 10 %
  12. Hanna GroLine pH 4.01 Buffer Sachets 20 mL (25 pcs.)
    Hanna Instruments
    Hanna GroLine pH 4.01 Buffer Sachets 20 mL (25 pcs.)
    Special Price $46.96 Regular Price $51.92
    Out of stock
    • Free shipping
    • - 10 %
  13. Hanna Quick Calibration Solution for GroLine pH and EC Meters (500 ml)
    Hanna Instruments
    Hanna Quick Calibration Solution for GroLine pH and EC Meters (500 ml)
    Special Price $23.07 Regular Price $25.51
    In stock
    • Free shipping
    • - 10 %
  14. Hanna Quick Calibration Solution for GroLine pH and EC Meters 20 mL sachet (25 - Pack)
    Hanna Instruments
    Hanna Quick Calibration Solution for GroLine pH and EC Meters 20 mL sachet (25 - Pack)
    Special Price $53.51 Regular Price $59.17
    • - 10 %
  15. Hanna GroLine pH/EC/TDS Multiparameter Probe for HI981420
    Hanna Instruments
    Hanna GroLine pH/EC/TDS Multiparameter Probe for HI981420
    Special Price $205.74 Regular Price $227.50
    In stock
    • Free shipping
    • - 10 %
  16. Hanna Instruments GroLine Monitor for Hydroponic Nutrients - pH/EC/TDS - HI981420
    Hanna Instruments
    Hanna Instruments GroLine Monitor for Hydroponic Nutrients - pH/EC/TDS - HI981420
    Special Price $414.91 Regular Price $458.79
    Out of stock
    • Free shipping
    • - 10 %
  17. Hanna Instruments GroLine Electrode Storage Solution (500 mL)
    Hanna Instruments
    Hanna Instruments GroLine Electrode Storage Solution (500 mL)
    Special Price $23.07 Regular Price $25.51
    Out of stock
    • Free shipping
    • - 10 %
  18. Hanna Instruments GroLine Storage Solution Sachets 20 mL (25 pcs.)
    Hanna Instruments
    Hanna Instruments GroLine Storage Solution Sachets 20 mL (25 pcs.)
    Special Price $46.96 Regular Price $51.92
    Out of stock
    • Free shipping
    • - 10 %
  19. Hanna GroLine Waterproof EC/TDS (ppm) Tester
    Hanna Instruments
    Hanna GroLine Waterproof EC/TDS (ppm) Tester
    Special Price $102.65 Regular Price $113.51
    Out of stock
    • Free shipping
    • - 10 %
  20. Hanna Instruments Shockproof Rubber Boot (Green) - FOR NEW STYLE HI9814
    Hanna Instruments
    Hanna Instruments Shockproof Rubber Boot (Green) - FOR NEW STYLE HI9814
    Special Price $42.59 Regular Price $47.09
    In stock
    • Free shipping
    • - 10 %
  21. Hanna Instruments GroLine Direct Soil and Soiless Media pH Electrode - for use with HI9814
    Hanna Instruments
    Hanna Instruments GroLine Direct Soil and Soiless Media pH Electrode - for use with HI9814
    Special Price $248.94 Regular Price $275.28
    In stock
    • Free shipping
    • - 10 %
  22. Hanna GroLine Waterproof Hydroponic pH Tester - HI98118
    Hanna Instruments
    Hanna GroLine Waterproof Hydroponic pH Tester - HI98118
    Special Price $102.65 Regular Price $113.51
    Out of stock
    • Free shipping
    • - 10 %
  23. Hanna GroLine Hydroponic Waterproof Pocket pH/EC/TDS/Temperature Tester - HI98131
    Hanna Instruments
    Hanna GroLine Hydroponic Waterproof Pocket pH/EC/TDS/Temperature Tester - HI98131
    Special Price $260.50 Regular Price $288.05
    Out of stock
    • Free shipping
    • - 10 %
  24. Hanna Quick Calibration Solution for GroLine pH and EC Meters 20 mL sachet - EACH
    Hanna Instruments
    Hanna Quick Calibration Solution for GroLine pH and EC Meters 20 mL sachet - EACH
    Special Price $2.40 Regular Price $2.66
    Out of stock
    • Free shipping
    • - 10 %
  25. Hanna GroLine Replacement Electrode Probe with screw connector - Fits HI98115 HI98103 HI98100
    Hanna Instruments
    Hanna GroLine Replacement Electrode Probe with screw connector - Fits HI98115 HI98103 HI98100
    Special Price $21.84 Regular Price $24.15
    Out of stock
    • Free shipping
    • - 10 %
  26. Hanna 1413 S/cm (EC) Calib Solution 20mL - SINGLE PACKET
    Hanna Instruments
    Hanna 1413 S/cm (EC) Calib Solution 20mL - SINGLE PACKET
    Special Price $1.92 Regular Price $2.13
    In stock
    • Free shipping
    • - 10 %
  27. Probe Only - Hanna Instruments pH/EC/TDS Multiparameter Probe for use with HI9814 - HI1285-7
    Hanna Instruments
    Probe Only - Hanna Instruments pH/EC/TDS Multiparameter Probe for use with HI9814 - HI1285-7
    Special Price $191.88 Regular Price $212.18
    Out of stock
    • Free shipping
    • - 10 %
  28. Hanna GroLine Hydroponics pH Checker Tester - HI98115
    Hanna Instruments
    Hanna GroLine Hydroponics pH Checker Tester - HI98115
    Special Price $72.07 Regular Price $79.70
    Out of stock
    • Free shipping
    • - 10 %
  29. Hanna Checker PLUS pH Tester (Not the Regular Checker)
    Hanna Instruments
    Hanna Checker PLUS pH Tester (Not the Regular Checker)
    Special Price $57.88 Regular Price $64.00
    Out of stock
    • Free shipping
    • - 10 %
  30. Hanna pH 4.01 Calibration Solution 20mL - SINGLE PACKET
    Hanna Instruments
    Hanna pH 4.01 Calibration Solution 20mL - SINGLE PACKET
    Special Price $3.64 Regular Price $4.03
    Out of stock
    • Free shipping
    • - 10 %
  31. Hanna 1382 PPM@25C Calibration Solution 20mL SINGLE PACKET
    Hanna Instruments
    Hanna 1382 PPM@25C Calibration Solution 20mL SINGLE PACKET
    Special Price $1.92 Regular Price $2.13
    In stock
    • Free shipping
    • - 10 %
  32. Hanna pH 7.01 Calibration Solution 20mL - SINGLE PACKET (CLOSEOUT - EXISTING STOCK ONLY)
    Hanna Instruments
    Hanna pH 7.01 Calibration Solution 20mL - SINGLE PACKET (CLOSEOUT - EXISTING STOCK ONLY)
    Special Price $3.64 Regular Price $4.03
    In stock
    • Free shipping
    • - 10 %
  33. Hanna GroLine Soil Test EC/Temperature Substrate Tester
    Hanna Instruments
    Hanna GroLine Soil Test EC/Temperature Substrate Tester
    Special Price $151.37 Regular Price $167.38
    Out of stock
    • Free shipping
    • - 10 %
  34. Hanna GroLine Waterproof Portable pH/EC/TDS Temperature Meter for Hydroponics
    Hanna Instruments
    Hanna GroLine Waterproof Portable pH/EC/TDS Temperature Meter for Hydroponics
    Special Price $286.72 Regular Price $356.58
    • - 20 %
  35. Hanna Instruments Combo pH/ORP/Temperature Tester
    Hanna Instruments
    Hanna Instruments Combo pH/ORP/Temperature Tester
    Special Price $226.89 Regular Price $250.88
    Out of stock
    • Free shipping
    • - 10 %
  36. Hanna Continuous pH/TDS/Temp Monitor - 500 Scale (HI981504/5-1) (DISCONTINUED)
    Hanna Instruments
    Hanna Continuous pH/TDS/Temp Monitor - 500 Scale (HI981504/5-1) (DISCONTINUED)
    Special Price $218.40 Regular Price $241.50
    Out of stock
    • Free shipping
    • - 10 %

Store Hours: Monday through Friday: 1-6pm EST | Saturday 10am- 2pm | Closed Sundays

10566 Plaza Dr, Whitmore Lake, MI. 48189 | Directions

©2009-©2025 Grow Green MI All Rights Reserved | We buy in bulk and pass the savings along to you! | Growing the Community since 2009

Trusted Shops certified

Shipping methods:

Payment methods: