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.Batteries for pH/TDS pen or Thirsty Light 12880 S/ cm conductivity solution 1500 ppm CAL SOLUTION 8oz
1500 ppm Calibration Solution 1 qt 1500PPM Solution, 230ml 2-Way Moisture/pH Meter
1500PPM Solution, 230ml
Store Price $15.99
2-Way Moisture/pH Meter
Store Price $7.95
60ml SYRINGE/PLASTIC NEEDLE KIT ACTIVE AIR 3 WAY METER BL 4.0 250ml CAL SOLUTION
ACTIVE AIR 3 WAY METER
Store Price $9.95
BL 4.0 250ml CAL SOLUTION
Store Price $7.78
BLUE LAB 4.0 CALIBRATION SOLUTION 500ML BLUE LAB 7.0 CALIBRATION SOLUTION 500ML BLUELAB 7.0 250ml CAL SOLUTION
BLUELAB COMBO METER Bluelab Grower's Toolbox-Limited Edition Bluelab pH meter with probe
BLUELAB COMBO METER
Store Price $308.00
Bluelab pH meter with probe
Store Price $210.00
BLUELAB pH PEN BLUELAB ppm PEN Bluelab Replacement pH Probe for Guardian, Combo, & pH Meter
BLUELAB pH PEN
Out The Door! $100.00
BLUELAB ppm PEN
Msrp $94.00
BLUELAB SOIL PH PEN Bluelab Truncheon Champ pH Tester
BLUELAB SOIL PH PEN
Our Price: $185.00
Bluelab Truncheon
Store Price $140.00
Champ pH Tester
Store Price $62.95
CHECKER pH1 TESTER Combo pH/EC/TDS/C/PPM Tester Commercial Grade Combo pH/EC/TDS/Temp Meter
CHECKER pH1 TESTER
Store Price $41.99
Combo pH/EC/TDS/C/PPM Tester
Store Price $194.95
Digital Moisture Meter Digital pH Meter Digital Soil Thermometer
Digital Moisture Meter
Our Price: $11.99
Digital pH Meter
Our Price: $13.99
Digital Soil Thermometer
Our Price: $14.45
DiST 1 TDS Tester DiST 5 EC/TDS Meter EC SHAKE NUTRIENT METER
DiST 1 TDS Tester
Store Price $77.95
DiST 5 EC/TDS Meter
Store Price $140.99
EC SHAKE NUTRIENT METER
Our Price: $102.95
EC65 Waterproof Tester Electrode Cleaner Twin Pack, 2x8 oz Gro'chek replacement probe for HI9813-6
EC65 Waterproof Tester
Store Price $80.95
GroChek EC Electrode GroChek EC Monitor GroChek EC Tester
GroChek EC Electrode
Store Price $57.95
GroChek EC Monitor
Store Price $114.95
GroChek EC Tester
Store Price $115.95
GroChek Hanna EC/TDS Monitor w/ HI7632 EC Probe GroChek Hanna pH Indicator GroChek Hanna pH/EC/TDS/C/PPT Pocket Tester
GroChek Hanna pH Indicator
Store Price $119.95
GroChek pH & TDS Combo Continuous Reading Meter GroChek pH Tester GroChek pH/EC/TDS Meter
GroChek pH Tester
Store Price $113.95
GroChek pH/EC/TDS Meter
Store Price $249.95
GroChek pH/EC/TDS/C Meter w/Cal-Check Feature GroChek pH/EC/TDS/Temp. Combo GroChek replacement probe for HI9813
GroChek replacement probe for HI9813-0 GroChek TDS Tester Hanna Gro'CHEK pHEP 4 Meter
GroChek TDS Tester
Store Price $115.95
Hanna Gro'CHEK pHEP 4 Meter
Store Price $113.95
Hanna Gro'CHEK pHEP 5 Meter MA 850 Replacement probe for SM801/SM Milwaukee 3 function SM802
Hanna Gro'CHEK pHEP 5 Meter
Store Price $132.95
Milwaukee 3 function SM802
Store Price $205.95
Milwaukee Double Junction pH Electrode w/ 1 meter cable Milwaukee EC continuous read Milwaukee EC hand meter SM301
Milwaukee EC continuous read
Store Price $122.95
Milwaukee pH - EC - TDS KIT Milwaukee pH Continuous {0.0 to 14.0} SPO Milwaukee pH continuous read
Milwaukee pH - EC - TDS KIT
Store Price $239.95
Milwaukee pH continuous read
Store Price $113.95
Milwaukee pH hand meter SM100 Milwaukee pH hand meter SM101 Milwaukee Sugar Refractometer
Milwaukee TDS Continuous Monitor with Cal-Test Milwaukee TDS continuous read Milwaukee TDS hand held
Milwaukee TDS hand held
Store Price $106.95
Milwaukee TDS T75 Tester WP Milwaukee TDS T76 Tester WP Milwaukee Waterproof pH Tester
Nutra-Dip continuous TDS meter Nutra-Dip continuous Tri meter (pH, EC & Temperature) Nutra-Dip continuous Tri meter (pH, PPM (NaCl) & Temperature)
Nutradip continuous pH meter Nutradip continuous pH/PPM(442)/Temp meter Oakton Low/High/EC High Replacement Sensor
Nutradip continuous pH meter
Store Price $133.95
Oakton pHTestr 10 - .1 pH Accuracy ATC* Oakton pHTestr 20 - .01 pH Accuracy *ATC Oakton pHTestr 30 - .01 pH Accuracy Temperature Display *ATC