Mafia Living Soil landed are you ready - Check out Dank Deals Happy August- PEACE
Meters

Meters

(31)
  1. Fall Harvest Sale - Bluelab OnePen - With replaceable pH, Conductivity (EC) & Temperature Probe
    BlueLab
    Fall Harvest Sale - Bluelab OnePen - With replaceable pH, Conductivity (EC) & Temperature Probe
    Special Price $197.28 Regular Price $286.35
    Out of stock
    • Free shipping
    • - 31 %
  2. Fall Harvest Sale - Phantom PHOTOBIO Advanced Quantum PAR Meter
    PHOTOBIO
    Fall Harvest Sale - Phantom PHOTOBIO Advanced Quantum PAR Meter
    Special Price $145.28 Regular Price $252.99
    Out of stock
    • Free shipping
    • - 43 %
  3. 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 %
  4. HM Digital Brix Refractometer Model SCM-1000 (CLOSEOUT)
    HM Digital
    HM Digital Brix Refractometer Model SCM-1000 (CLOSEOUT)
    Special Price $102.96 Regular Price $385.25
    Out of stock
    • New
    • Free shipping
    • - 73 %
  5. 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 %
  6. 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 %
  7. Bluelab Leap pH Probe (Probe Only)
    BlueLab
    Bluelab Leap pH Probe (Probe Only)
    Special Price $116.20 Regular Price $148.35
    Out of stock
    • Free shipping
    • - 22 %
  8. 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 %
  9. 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 %
  10. Bluelab Carry Case
    BlueLab
    Bluelab Carry Case
    Special Price $31.67 Regular Price $35.02
    • Free shipping
    • - 10 %
  11. TWO METERS COMBO - Bluelab pH Pen + Bluelab Conductivity Pen (PPM)
    BlueLab
    TWO METERS COMBO - Bluelab pH Pen + Bluelab Conductivity Pen (PPM)
    Special Price $207.95 Regular Price $343.85
    • Free shipping
    • - 40 %
  12. 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 %
  13. Fall Harvest Sale - Bluelab pH Pen
    2 left at this sweet price!
    2/2
    BlueLab
    Fall Harvest Sale - Bluelab pH Pen
    Special Price $93.60 Regular Price $133.40
    Special Price $93.60 Regular Price $133.40
    In stock
    • Free shipping
    • - 30 %
  14. Black Friday Sale - Bluelab Conductivity Pen - Conductivity (PPM) Pen Meter
    BlueLab
    Black Friday Sale - Bluelab Conductivity Pen - Conductivity (PPM) Pen Meter
    Special Price $78.72 Regular Price $133.04
    In stock
    • Free shipping
    • - 41 %
  15. Hanna GroChek pH/EC/TDS/C Portable Meter w/ Cal Check (HI9813-6)
    Hanna Instruments
    Hanna GroChek pH/EC/TDS/C Portable Meter w/ Cal Check (HI9813-6)
    Special Price $240.54 Regular Price $265.98
    Out of stock
    • Free shipping
    • - 10 %
  16. Hanna Instruments GroChek pHEP 5 Meter with 0.01 pH Resolution
    Hanna Instruments
    Hanna Instruments GroChek pHEP 5 Meter with 0.01 pH Resolution
    Special Price $131.12 Regular Price $144.99
    Out of stock
    • Free shipping
    • - 10 %
  17. Hydrofarm 2-Way Meter (Moisture & pH)
    Active Air
    Hydrofarm 2-Way Meter (Moisture & pH)
    Special Price $12.79 Regular Price $14.15
    • Free shipping
    • - 10 %
  18. CLEARANCE SALE - Hydrofarm 3-Way Meter (Moisture, pH, and Light)
    Active Air
    CLEARANCE SALE - Hydrofarm 3-Way Meter (Moisture, pH, and Light)
    Special Price $15.34 Regular Price $16.96
    • Free shipping
    • - 10 %
  19. Hanna DiST 5 EC/TDS/Temperature Tester
    Hanna Instruments
    Hanna DiST 5 EC/TDS/Temperature Tester
    Special Price $131.12 Regular Price $144.99
    In stock
    • Free shipping
    • - 10 %
  20. Hanna Instruments DiST 1 Waterproof TDS Tester (0-2000 ppm)
    Hanna Instruments
    Hanna Instruments DiST 1 Waterproof TDS Tester (0-2000 ppm)
    Special Price $69.89 Regular Price $77.28
    Out of stock
    • Free shipping
    • - 10 %
  21. Hanna Instruments GroChek pH/EC/TDS/C/PPT Pocket Tester HI98130N
    Hanna Instruments
    Hanna Instruments GroChek pH/EC/TDS/C/PPT Pocket Tester HI98130N
    Special Price $198.28 Regular Price $219.25
    Out of stock
    • Free shipping
    • - 10 %
  22. Hanna Instruments Combo pH/EC/TDS/C/PPM Tester
    Hanna Instruments
    Hanna Instruments Combo pH/EC/TDS/C/PPM Tester
    Special Price $198.28 Regular Price $219.25
    Out of stock
    • Free shipping
    • - 10 %
  23. Hanna GroCHEK pHEP 4 pH/Temperature Tester Meter HI98127N
    Hanna Instruments
    Hanna GroCHEK pHEP 4 pH/Temperature Tester Meter HI98127N
    Special Price $119.39 Regular Price $132.02
    Out of stock
    • Free shipping
    • - 10 %
  24. Hanna Instruments pHep pH Meter - Waterproof Pocket pH Tester with 0.1 Resolution
    Hanna Instruments
    Hanna Instruments pHep pH Meter - Waterproof Pocket pH Tester with 0.1 Resolution
    Special Price $57.88 Regular Price $64.00
    Out of stock
    • Free shipping
    • - 10 %
  25. Hanna Instruments Red Checker pH Tester with Replaceable Electrode
    Hanna Instruments
    Hanna Instruments Red Checker pH Tester with Replaceable Electrode
    Special Price $41.50 Regular Price $45.89
    Out of stock
    • Free shipping
    • - 10 %
  26. Hanna Instruments Replacement pH Electrode for HI98127/HI98128/HI98129/HI98130
    Hanna Instruments
    Hanna Instruments Replacement pH Electrode for HI98127/HI98128/HI98129/HI98130
    Special Price $77.53 Regular Price $85.73
    Out of stock
    • Free shipping
    • - 10 %
  27. Hanna Replacement Plastic Body pH Probe Electrode for Older Monitors (HI981401N & HI981404N)
    Hanna Instruments
    Hanna Replacement Plastic Body pH Probe Electrode for Older Monitors (HI981401N & HI981404N)
    Special Price $72.07 Regular Price $79.70
    Out of stock
    • Free shipping
    • - 10 %
  28. Special Probe Part ends in 6 - Hanna Replacement pH Probe (HI 1285-6)
    Hanna Instruments
    Special Probe Part ends in 6 - Hanna Replacement pH Probe (HI 1285-6)
    Special Price $135.39 Regular Price $149.71
    Out of stock
    • Free shipping
    • - 10 %
  29. PROBE ONLY - Bluelab pH Replacement Electrode for Guardian & Combo & pH Meter
    BlueLab
    PROBE ONLY - Bluelab pH Replacement Electrode for Guardian & Combo & pH Meter
    Special Price $86.27 Regular Price $113.85
    In stock
    • Free shipping
    • - 24 %
  30. Fall Harvest Sale - BlueLab Combo Meter - Measures pH Temperature and PPM
    10 left at this sweet price!
    10/10
    BlueLab
    Fall Harvest Sale - BlueLab Combo Meter - Measures pH Temperature and PPM
    Special Price $250.00 Regular Price $378.35
    Special Price $268.00 Regular Price $378.35
    In stock
    • Free shipping
    • - 34 %
  31. Bluelab Truncheon Original
    BlueLab
    Bluelab Truncheon Original
    Special Price $123.33 Regular Price $171.35
    • Free shipping
    • - 28 %

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: