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Handheld Testers


Shrimp Feeder testers feature the portability and accuracy you need for on the spot measurement.



pHep5 Waterproof pH/Temperature Tester
pHep5 Waterproof pH Testers with Replaceable Electrode Cartridge


Combo - Waterproof pH / EC / TDS / C / F Testers with Replaceable Electrode
Combo - Waterproof pH / EC / TDS / °C / °F Testers with Replaceable Electrode

Regular price:$115.50
Discount:-$22.00
Sale price: $93.50
Regular price:$195.00
Discount:-$45.00
Sale price: $150.00

DIST 5 Waterproof EC/TDS Temperature Tester
DIST 5 Waterproof EC/TDS Temperature Tester


CheckerŪ with replaceable HI1270 screw-type, combination, pH electrode
CheckerŪ with replaceable HI1270 screw-type, combination, pH electrode

Regular price:$95.00
Discount:-$8.50
Sale price: $86.50
Regular price:$0.00
Discount:-$-35.00
Sale price: $35.00

Waterproof Double Junction pHTestr 2
Waterproof Double Junction pHTestr 2
Features waterproof, dustproof housing that floats, ATC, and a long-lasting double junction electrode!

YSI 30 SALINITY/CONDUCTIVITY/TEMPERATURE INSTRUMENT
The YSI Salinity, Conductivity and Temperature Instrument is ready to use when you turn it on. A large, backlit display shows temperature along with conductivity, temperature-compensated conductivity, or salinity.

Regular price:$115.00
Discount:-$8.00
Sale price: $107.00
Regular price:$650.00