Saltwater Critters, Reef Aquariums & Fish Supplies, Saltwater Products & Accessories

Dry Goods | RO/DI Filtration | Meters

TDS-EZ: Water Quality Tester

Reg. Price:

~~$25.00~~

Sale Price:

$18.97

Save:

$6.03

HM Digital
TDS-EZ
Handheld TDS Meter
Water Quality Tester
2 Year Warranty

TDS-3: Handheld TDS Meter & Thermometer

Reg. Price:

~~$37.00~~

Sale Price:

$22.17

Save:

$14.83

HM Digital
TDS-3
Handheld TDS Meter
Digital Thermometer
Includes Carrying Case
3 Year Warranty

COM-100: Waterproof EC / TDS / Temp Combo Meter

Reg. Price:

~~$65.00~~

Sale Price:

$54.97

Save:

$10.03

HM Digital
COM-100
Waterproof
EC / TDS / Temp Combo Meter
1 year warranty

EC-3: Handheld Conductivity Tester with Case

Reg. Price:

~~$37.00~~

Sale Price:

$22.17

Save:

$14.83

HM Digital
EC-3
Handheld Electrical Conductivity Tester
Case Included
3 year warranty

AP-1: AquaPro TDS & Temp Meter

Reg. Price:

~~$45.00~~

Sale Price:

$27.97

Save:

$17.03

HM Digital
AP-1
AquaPro Water Quality Tester
1 year warranty

DM-1: In-Line Dual TDS Monitor

Reg. Price:

~~$42.00~~

Sale Price:

$29.37

Save:

$12.63

HM Digital
DM-1
In-Line Dual TDS Monitor
1 year warranty

TDS-4: Pocket Size TDS Meter

Reg. Price:

~~$35.00~~

Sale Price:

$20.97

Save:

$14.03

HM Digital
TDS-4
Pocket Size TDS Meter
3 year warranty

TM-1: Industrial Grade Digital Thermometer

Reg. Price:

~~$35.00~~

Sale Price:

$24.97

Save:

$10.03

TDS Calibration Solution 342 ppm

Reg. Price:

~~$5.95~~

Sale Price:

$4.97

Save:

$0.98

HM Digital
TDS Calibration Solution
342 ppm
3 oz. bottle

TDS Calibration Solution 1000 ppm

Reg. Price:

~~$5.95~~

Sale Price:

$4.97

Save:

$0.98

HM Digital
TDS Calibration Solution
1000 ppm
3 oz. bottle