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Meters & Controllers

Bluelab Conductivity Standard Solution - 120ml - 2.77 EC
In Stock: 75
$99.12 / $16.52 per unit
(minimum purchase of 6)
Hanna Standard Conductivity Solution - 500ml - 1413 µS/cm - NIST Traceable
In Stock: 7
$29.69 $31.89 -7%
Milwaukee Instruments pH 600 pH Tester w/1 Point Manual Calibration
Out of stock
$23.86 $35.00 -32%
Bluelab Meter Carrying Case - Hands-Free Readings - Probe Storage Pockets
In Stock: 163
$24.32 $35.60 -32%
HM Digital TDS-3 Handheld TDS meter
In Stock: 27
$25.17 $36.99 -32%
Bluelab Connect Stick 2 - for Bluelab Connect Devices - Wireless Data to Smartphone
In Stock: 168
$72.24 $147.11 -51%
HM Digital PH-80 pH/Temperature Meter
In Stock: 91
$39.98 $47.99 -17%
GroStar GS4-E Replacement Electrode
In Stock: 72
$67.19 $79.99 -16%
Dilution Solutions Pro HM Digital pH Meter - 7.3in x 1.3in x 1.3in
In Stock: 321
$93.15 $99.95 -7%
Bluelab Conductivity Standard Solution - 500ml - 2.77 EC
In Stock: 123
$124.98 / $20.83 per unit
(minimum purchase of 6)
Milwaukee Instruments EC40 PRO EC/TDS Nutrient Meter
Out of stock
$35.38 $95.00 -63%
GroStar GS2-E Replacement Electrode
In Stock: 97
$152.87 $181.99 -16%
Bluelab pH Probe KCl Storage Solution - 250ml
In Stock: 110
$160.62 / $26.77 per unit
(minimum purchase of 6)
1" Digital Flow Meter
In Stock: 14
$95.84 $103.95 -8%
Dilution Solutions EC Calibration Solution - 20pc Box - Individual Packets
In Stock: 224
$10.04 $24.95 -60%
GroStar pH 4/7/10 Calibration Kit
In Stock: 33
$24.35 $28.99 -16%
Bluelab Connect Range Extender - for Bluelab Connect Devices and Connect Stick
In Stock: 10
$99.54 $202.71 -51%
GroStar GS1-E Replacement Electrode
In Stock: 95
$42.83 $50.99 -16%
HM Digital 1000 ppm TDS Calibration Solution, 3 oz (90 ml)
In Stock: 31
$10.65 $10.99 -3%
HM Digital COM-80 EC/TDS/Temp Waterproof Hydro Tester
In Stock: 32
$47.45 $52.99 -10%
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