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pH Meters

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Bluelab Connect Pro Controller | Remote Monitoring of pH, EC and Temperature
Out of stock
$1,412.28 $1,812.17 -22%
Bluelab pH Controller | 6.5ft Probe Cable - Dose pH Up or pH Down
Out of stock
$756.13
Bluelab Guardian Monitor In-Line Connect | 10 ft In-line Probe Cable
Out of stock
$590.18 $814.77 -28%
Bluelab Guardian Monitor Connect | 6.5ft Probe Cable
Out of stock
$469.31 $620.47 -24%
Bluelab Combo Meter Plus | Measures pH, Conductivity & Temperature
In Stock: 24
$417.16 $550.11 -24%
Bluelab Guardian Monitor | 6.5ft Probe Cable
Out of stock
$408.30 $555.70 -27%
Bluelab Combo Meter | 6.5ft Probe Cable
In Stock: 40
$346.84 $467.38 -26%
Bluelab Soil pH Pen
In Stock: 13
$220.14 $288.16 -24%
Bluelab pH Probe Inline | 3/4in NPT Thread - Use with 1in Adapter
In Stock: 29
$218.53 $288.16 -24%
GroStar GS2 Soil pH Pen
In Stock: 141
$215.87 $256.99 -16%
Heavy Duty Nutrient pH Sensor, drop-in/in-line compatible
In Stock: 8
$207.19 $219.45 -6%
Inline pH Sensor, Heavy Duty
In Stock: 10
$184.79 $197.40 -6%
Bluelab Multimedia pH Meter | 6.5ft Probe Cable
In Stock: 118
$170.86 $255.74 -33%
GroStar GS2-E replacement Soil Spear pH electrode
In Stock: 101
$152.87 $181.99 -16%
Bluelab Leap pH Probe | For Bluelab Combo Meter - Bluelab Combo Meter Plus - and Bluelab Multimedia pH Meters
In Stock: 41
$151.62 $199.92 -24%
GroStar GS4 pH/EC/500ppm/700ppm/Temp (5-in-1) Combo Pen
In Stock: 196
$150.35 $178.99 -16%
Hanna GroLine Waterproof Hydroponic pH Tester
Out of stock
$128.80 $139.99 -8%
Bluelab pH Pen Meter | Measures pH and Temperature
In Stock: 346
$127.90 $172.35 -26%
GroStar GS1 pH Pen
In Stock: 284
$101.91 $115.99 -12%
Dilution Solutions Pro HM Digital pH Meter | 7.3in x 1.3in x 1.3in
In Stock: 340
$96.60 $99.95 -3%
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