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pH Meters

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Bluelab Connect Pro Controller | Remote Monitoring of pH, EC and Temperature
Out of stock
$1,214.93
Bluelab Guardian Monitor In-Line Connect | 10 ft In-line Probe Cable
Out of stock
$546.24
Bluelab Connect pH Controller | for Bluelab Connect Devices
In stock
$523.75 $683.36 -23%
Bluelab pH Controller | 6.5ft Probe Cable - Dose pH Up or pH Down
In stock
$490.98 $640.60 -23%
Bluelab Guardian Monitor Connect | 6.5ft Probe Cable
Out of stock
$415.98
Bluelab Combo Meter Plus | Measures pH, Conductivity & Temperature
In stock
$346.50
Bluelab Combo Meter | 6.5ft Probe Cable
In stock
$294.40
Save 17%
GroStar GS2 Soil pH Pen
In stock
$212.78 $256.99 -17%
Save 11%
Heavy Duty Nutrient pH Sensor, drop-in/in-line compatible
In stock
$195.35 $219.45 -11%
Bluelab Soil pH Pen
In stock
$181.50
Bluelab pH Probe Inline | 3/4in NPT Thread - Use with 1in Adapter
In stock
$181.50
Bluelab Guardian Monitor | 6.5ft Probe Cable
In stock
$177.61 $366.91 -52%
Save 12%
Inline pH Sensor, Heavy Duty
In stock
$174.23 $197.40 -12%
Bluelab Multimedia pH Meter | 6.5ft Probe Cable
In stock
$156.67 $255.74 -39%
Save 17%
GroStar GS2-E replacement Soil Spear pH electrode
In stock
$150.68 $181.99 -17%
Save 17%
GroStar GS4 pH/EC/500ppm/700ppm/Temp (5-in-1) Combo Pen
In stock
$148.20 $178.99 -17%
Hanna GroLine Waterproof Hydroponic pH Tester
Out of stock
$131.99
Bluelab Leap pH Probe | For Bluelab Combo Meter - Bluelab Combo Meter Plus - and Bluelab Multimedia pH Meters
In stock
$125.93
Bluelab pH Pen Meter | Measures pH and Temperature
In stock
$108.56
Save 15%
GroStar GS1 pH Pen
In stock
$98.27 $115.99 -15%
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