pH Meters | Pens | Monitors

Bluelab® Guardian Monitor Connect In-Line Bluelab® Guardian Monitor Connect In-Line
$446.85 Save $111.15
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HANNA® GroLine Hydroponic Waterproof pH/EC/TDS/Temperature P... HANNA® GroLine Hydroponic Waterproof pH/EC/TDS/Temperature Portable Meter
$199.00 Save $50.99
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HANNA® GroLine Hydroponic Waterproof Pocket pH/EC/TDS/Temper... HANNA® GroLine Hydroponic Waterproof Pocket pH/EC/TDS/Temperature Tester
$159.00 Save $40.99
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Oakton® CTS EcoTestr TDS Oakton® CTS EcoTestr TDS
$82.40 Save $20.60
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HANNA® GroLine Hydroponics pH Tester HANNA® GroLine Hydroponics pH Tester
$49.00 Save $40.99
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HANNA® Checker® pH Tester HANNA® Checker® pH Tester
$42.40 Save $10.60
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Sunleaves® pH Expert Plus Meter Sunleaves® pH Expert Plus Meter
$82.35 Save $20.60
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HANNA® GroCheck Combo Meter HANNA® GroCheck Combo Meter
$193.43 Save $48.57
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Nutradip® GROWBOSS Nutrient Monitoring System Nutradip® GROWBOSS Nutrient Monitoring System
$224.95 Save $45.00
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HANNA® Combo pH / Conductivity / TDS Tester HANNA® Combo pH / Conductivity / TDS Tester
$159.95 Save $40.00
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Bluelab® Grower's Toolbox, Limited Edition Bluelab® Grower's Toolbox, Limited Edition
$159.50 Save $39.50
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HANNA® pHep® 4 pH / Temperature Tester HANNA® pHep® 4 pH / Temperature Tester
$96.85 Save $24.48
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HM Digital pH HydroTester HM Digital pH HydroTester
$54.38 Save $11.14
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Bluelab® pH Pen Bluelab® pH Pen
$91.80 Save $22.95
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Milwaukee Smart pH / EC / TDS Combination Meter Milwaukee Smart pH / EC / TDS Combination Meter
$199.95 Save $50.00
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Milwaukee pH600 Tester Milwaukee pH600 Tester
$30.66 Save $6.26
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HANNA® pH / EC / TDS Meter with F.S.T. Technology HANNA® pH / EC / TDS Meter with F.S.T. Technology
$234.36 Save $58.64
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HM Digital Waterproof pH Meter HM Digital Waterproof pH Meter
$79.95 Save $20.00
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Bluelab® Guardian Monitor Connect Bluelab® Guardian Monitor Connect
$360.00 Save $90.00
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HANNA® Portable pH / EC / TDS / Temperature Meter with CAL C... HANNA® Portable pH / EC / TDS / Temperature Meter with CAL Check™
$218.35 Save $54.60
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HANNA® pHep® pH Tester HANNA® pHep® pH Tester
$58.24 Save $14.56
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Oakton® Waterproof EcoTestr pH 2 Oakton® Waterproof EcoTestr pH 2
$75.65 Save $19.06
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Control Wizard 24-7 Nutrient Monitor™ Control Wizard 24-7 Nutrient Monitor™
$173.45 Save $43.50
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Oakton® Waterproof EcoTestr pH 1 Oakton® Waterproof EcoTestr pH 1
$60.63 Save $15.24
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