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Meters & Controllers

Hanna Instruments HI7031L Standard Conductivity Calibration Solution - 500 mL - 1413 µS/cm - NIST Traceable
In Stock: 7
$29.69
Sunpack Tri-Meter for Moisture, Light, and pH
Out of stock
$91.80 / $9.18 per unit
(minimum purchase of 10)
Bluelab Connect Stick 2 for Connect Devices - Wireless Data to Smartphone
In Stock: 164
$69.66
Bluelab Meter Carrying Case - Meter Not Included
In Stock: 163
$23.45
Milwaukee Instruments pH600 pH Tester with 1-Point Manual Calibration
Out of stock
$24.67 $35.00 -30%
HM Digital TDS-3 Handheld TDS Meter
In Stock: 20
$26.03 $36.99 -30%
HM Digital PH-80 Digital pH/Temperature Meter
In Stock: 9
$39.97 $47.99 -17%
Dilution Solutions Pro HM Digital pH Meter - 7.3-in
In Stock: 321
$94.17 $99.95 -6%
Bluelab Conductivity Standard Solution - 2.77 EC - 500 mL
In Stock: 94
$124.98 / $20.83 per unit
(minimum purchase of 6)
GroStar GS4-E Replacement pH/EC Combo Electrode for GS4 Meter
In Stock: 72
$67.07 $79.99 -16%
Milwaukee Instruments EC40 PRO EC/TDS Nutrient Meter
Out of stock
$36.58 $95.00 -61%
GroStar GS2-E Replacement Soil Spear pH Electrode for GS2 Soil pH Meter
In Stock: 97
$143.62 $181.99 -21%
Bluelab pH Probe KCl Storage Solution - 250 mL
In Stock: 115
$166.08 / $27.68 per unit
(minimum purchase of 6)
Dilution Solutions EC Calibration Solution Packets - 20-Count
In Stock: 224
$12.98 $24.95 -48%
TrolMaster Digital Flow Meter DFM-1 for Aqua-X Pro Controller - 1-in
In Stock: 14
$97.05 $103.95 -7%
Apera Instruments GroStar pH 4/7/10 Calibration Solution Kit - 8 Oz Each
In Stock: 6
$24.30 $28.99 -16%
Bluelab Connect Range Extender for Connect Devices and Connect Stick
In Stock: 10
$95.99
Hydrofarm Active Air 3-Way Meter - Moisture, Light, and pH
In Stock: 1
$6.70 $14.99 -55%
GroStar GS1-E Replacement pH Electrode for GS1 pH Meter
In Stock: 95
$42.75 $50.99 -16%
HM Digital 1000 ppm TDS Calibration Solution - 3 Oz (90 mL)
In Stock: 31
$10.99
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