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Rootline Supply Co.
Rootline Supply Co. provides reliable tools and products for growers, gardeners, and cultivators who care about quality. We’re focused...
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10 months 3 days
Grand Rapids, US
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Meters & Controllers

Hort2O Digital Hygro-Thermometer - 9.8ft Temperature Sensor - 32 to 122 Degrees F - 20% to 98% RH
In Stock: 80
$19.19 $19.99 -4%
Bluelab Conductivity Standard Solution - 250ml - 2.77 EC
In Stock: 133
$69.00 / $11.50 per unit
(minimum purchase of 6)
SUNPACK Tri-Meter Moisture, Light & pH | Measures Moisture, Light & pH
Out of stock
$77.60 / $7.76 per unit
(minimum purchase of 10)
Bluelab Conductivity Standard Solution - 120ml - 2.77 EC
In Stock: 66
$97.68 / $16.28 per unit
(minimum purchase of 6)
Bluelab pH 4.0 Calibration Solution - 250ml
In Stock: 385
$67.50 / $11.25 per unit
(minimum purchase of 6)
Bluelab pH 4.0 Calibration Solution - 500ml
In Stock: 134
$122.22 / $20.37 per unit
(minimum purchase of 6)
Dilution Solutions HM Digital EC Calibration Solution - 1000 PPM - NaCl
In Stock: 29
$5.63 $8.95 -37%
Hanna Standard Conductivity Solution - 500ml - 1413 µS/cm - NIST Traceable
In Stock: 9
$29.03 $31.89 -9%
Bluelab Connect Stick 2 - for Bluelab Connect Devices - Wireless Data to Smartphone
In Stock: 168
$71.21 $147.11 -52%
Bluelab Meter Carrying Case - Hands-Free Readings - Probe Storage Pockets
In Stock: 164
$23.97 $35.60 -33%
Dilution Solutions Pro HM Digital pH Meter - 7.3in x 1.3in x 1.3in
In Stock: 323
$91.08 $99.95 -9%
Bluelab Conductivity Standard Solution - 500ml - 2.77 EC
In Stock: 64
$123.18 / $20.53 per unit
(minimum purchase of 6)
Bluelab pH Probe KCl Storage Solution - 250ml
In Stock: 224
$158.34 / $26.39 per unit
(minimum purchase of 6)
Dilution Solutions EC Calibration Solution - 20pc Box - Individual Packets
In Stock: 225
$9.89 $24.95 -60%
Bluelab Connect Range Extender - for Bluelab Connect Devices and Connect Stick
In Stock: 10
$98.12 $202.71 -52%
Hydro Systems Multi Nutrient Delivery System Flow Meter Kit for E-Dos Electric Pumps - Clamp-On Fittings - Flow Meter with Wiring Harness
Out of stock
$2,884.20 $3,168.25 -9%
Hanna pH, EC, and TDS Combo Tester - High Range - Waterproof - Floating
In Stock: 1
$296.99 $326.24 -9%
Dilution Solutions pH Calibration and Storage Solution - 20pcs - Individual Packets
In Stock: 95
$22.76 $24.95 -9%
Bluelab Probe Care Kit - for Bluelab pH and Conductivity Probes
In Stock: 67
$34.28 $45.51 -25%
Hanna pH 7.0 Buffer Calibration Solution - 500ml - NIST Traceable
In Stock: 3
$29.03 $31.89 -9%
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