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Collection: PH/EC/PPM/TDS Meters

Shop our selection of different PH, EC/PPM/TDS meters to ensure proper watering conditions for your garden.

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Active Air (2 products)
Bluelab (17 products)
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Hanna Instruments (11 products)
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TrolMaster (3 products)

Active Air (2 products)
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Hanna Instruments (11 products)
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Irrigation (2 products)
Meters & Calibration Solutions (46 products)

Irrigation (2 products)
Meters & Calibration Solutions (46 products)

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48 products

Bluelab Guardian Monitor In-Line

Sale

Bluelab Guardian Monitor In-Line

Regular price From $171.00 USD

Regular price ~~$210.94 USD~~ Sale price From $171.00 USD
Unit price per

Sale
Bluelab Soil pH Pen

Sale

Bluelab Soil pH Pen

Regular price $171.00 USD

Regular price ~~$210.94 USD~~ Sale price $171.00 USD
Unit price per

Sale
Hanna GroLine Hydroponics pH Tester

Hanna GroLine Hydroponics pH Tester

Regular price $60.00 USD

Regular price ~~$60.00 USD~~ Sale price $60.00 USD
Unit price per
Hanna GroLine Waterproof Portable pH/EC/TDS Combo Meter

Hanna GroLine Waterproof Portable pH/EC/TDS Combo Meter

Regular price $299.00 USD

Regular price ~~$299.00 USD~~ Sale price $299.00 USD
Unit price per
Bluelab pH & Conductivity Starter Pack

Sale

Bluelab pH & Conductivity Starter Pack

Regular price $214.00 USD

Regular price ~~$249.00 USD~~ Sale price $214.00 USD
Unit price per

Sale
Hanna GroLine Direct Soil EC Tester Pen

Hanna GroLine Direct Soil EC Tester Pen

Regular price $160.00 USD

Regular price ~~$160.00 USD~~ Sale price $160.00 USD
Unit price per
Bluelab Guardian Monitor

Sale

Bluelab Guardian Monitor

Regular price From $28.00 USD

Regular price ~~$30.74 USD~~ Sale price From $28.00 USD
Unit price per

Sale
Bluelab pH Pen

Sale

Bluelab pH Pen

Regular price $102.00 USD

Regular price ~~$119.00 USD~~ Sale price $102.00 USD
Unit price per

Sale
Apera GroStar GS4 pH/EC Combo Pen

Sale

Apera GroStar GS4 pH/EC Combo Pen

Regular price $127.00 USD

Regular price ~~$178.99 USD~~ Sale price $127.00 USD
Unit price per

Sale
Hanna GroLine Hydroponic Waterproof Pocket pH/EC/TDS/Temperature Tester

Hanna GroLine Hydroponic Waterproof Pocket pH/EC/TDS/Temperature Tester

Regular price $215.00 USD

Regular price ~~$215.00 USD~~ Sale price $215.00 USD
Unit price per
Bluelab Pulse Multimedia EC/MC Meter

Sale

Bluelab Pulse Multimedia EC/MC Meter

Regular price $291.00 USD

Regular price ~~$339.00 USD~~ Sale price $291.00 USD
Unit price per

Sale
Hanna GroLine Inline Monitor

Hanna GroLine Inline Monitor

Regular price $499.00 USD

Regular price ~~$499.00 USD~~ Sale price $499.00 USD
Unit price per
Hanna GroLine EC/PPM Pen

Hanna GroLine EC/PPM Pen

Regular price $110.00 USD

Regular price ~~$110.00 USD~~ Sale price $110.00 USD
Unit price per
Bluelab Original Truncheon Nutrient Meter

Sale

Bluelab Original Truncheon Nutrient Meter

Regular price $128.00 USD

Regular price ~~$149.00 USD~~ Sale price $128.00 USD
Unit price per

Sale
Bluelab Pro Controller

Sale

Bluelab Pro Controller

Regular price $1,120.00 USD

Regular price ~~$1,376.94 USD~~ Sale price $1,120.00 USD
Unit price per

Sale
Bluelab Combo Meter Plus

Sale

Bluelab Combo Meter Plus

Regular price $334.00 USD

Regular price ~~$389.00 USD~~ Sale price $334.00 USD
Unit price per

Sale
2-Way pH & Moisture Meter

Sale

2-Way pH & Moisture Meter

Regular price $9.00 USD

Regular price ~~$11.80 USD~~ Sale price $9.00 USD
Unit price per

Sale
HM Digital PH-80 pH/Temperature Meter

Sale

HM Digital PH-80 pH/Temperature Meter

Regular price $37.00 USD

Regular price ~~$46.50 USD~~ Sale price $37.00 USD
Unit price per

Sale
Hanna GroLine Monitor Inline Replacement Probe

Hanna GroLine Monitor Inline Replacement Probe

Regular price $210.00 USD

Regular price ~~$210.00 USD~~ Sale price $210.00 USD
Unit price per
Bluelab PowerPod

Sale

Bluelab PowerPod

Regular price $520.00 USD

Regular price ~~$649.00 USD~~ Sale price $520.00 USD
Unit price per

Sale
TrolMaster Heavy Duty pH Inline Sensor

Sale

TrolMaster Heavy Duty pH Inline Sensor

Regular price $209.00 USD

Regular price ~~$219.45 USD~~ Sale price $209.00 USD
Unit price per

Sale
TrolMaster Heavy Duty EC+Temp Sensor

Sale

TrolMaster Heavy Duty EC+Temp Sensor

Regular price $230.00 USD

Regular price ~~$241.50 USD~~ Sale price $230.00 USD
Unit price per

Sale
Hanna GroLine Tester Replacement Probe

Hanna GroLine Tester Replacement Probe

Regular price $80.00 USD

Regular price ~~$80.00 USD~~ Sale price $80.00 USD
Unit price per
Hanna GroLine Monitor Replacement Probe

Hanna GroLine Monitor Replacement Probe

Regular price $210.00 USD

Regular price ~~$210.00 USD~~ Sale price $210.00 USD
Unit price per

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