Testing & Controllers*

HI98301 DiST1 Waterproof TDS and Temperature Tester 1999PPM (mg/l)

HI98301 DiST1 Waterproof TDS and Temperature Tester 1999PPM (mg/l)

$67.20
See More
SKU: HN119
HI98319 Marine Salinity Tester

HI98319 Marine Salinity Tester

$94.49
See More
SKU: HN117
High Range pH Test Kit 7.4-8.8

High Range pH Test Kit 7.4-8.8

$9.44
See More
SKU: APH1077
Hydrometer / Thermometer
Out of stock

Hydrometer / Thermometer

$12.59
See More
SKU: AL301
Iron (Fe) Test Kit 0.5oz 15ml

Iron (Fe) Test Kit 0.5oz 15ml

$27.29
See More
SKU: SER101
-20%
Kessil Wifi Dongle *

Kessil Wifi Dongle *

Original price was: $99.00.Current price is: $79.20.
See More
SKU: KE141
LED Refractometer**
Out of stock

LED Refractometer**

$52.49
See More
SKU: AL1001L
Low Range pH Test Kit 6.0-7.6

Low Range pH Test Kit 6.0-7.6

$9.44
See More
SKU: APH1080
Magnesium (Mg) Test Kit 0.5oz 15ml

Magnesium (Mg) Test Kit 0.5oz 15ml

$50.39
See More
SKU: SER253
Magnesium Pro Reagent Refill Kit

Magnesium Pro Reagent Refill Kit

$24.99
See More
SKU: RS1012
Magnesium Pro Test Kit 100 Tests

Magnesium Pro Test Kit 100 Tests

$41.99
See More
SKU: RS1001
Marina Floating Thermometer

Marina Floating Thermometer

$2.09
See More
SKU: HA6276