Smart Professional pH/ORP controller. User selectable Hi/Low Set Point Manual 2 points calibration Visual LED alarm Supplied with 12 VDC...

Professional pH monitor especially designed for use with aquariums. User selectable Hi/Low Set Point Manual 2 points calibration Visual LED...

Water temperature is an important factor in keeping tank inhabitants healthy. JBJ floating glass thermometer sticks on the inside of...

For use in: All hot and cold fluids and/or solids Aquariums Kitchens and bakeries Hydroponics and aquaculture Freezers/coolers and heating...

The HI 98129 Combo waterproof tester offer high accuracy pH, EC/TDS and temperature measurements in a single tester! No more...

Dual Level Display Showing pH & Temp. Rugged, Floating Waterproof Casing Replaceable pH Electrode Featuring an Extendable Junction The waterproof ...

Cuvet cleaning solution (230 mL)

Stop struggling to get accurate results for your saltwater aquarium with our simple handheld colorimeter. Our nitrite colorimeter fills the...

The only salt water Alkalinity Tester at this price! Easier to use and more accurate than chemical test kits Colorimetric...

The HI731321 are the replacement glass cuvettes used with the HI7XX Checker HC colorimeters and the HI832XX benchtop photometers. Each...

Easier to use and more accurate than chemical test kits Adaptation of Standard Method 4500-P E Accuracy 4% 0.04 ppm...

To minimize clogging and ensure fast response time, always keep the glass bulb and the junction of your pH electrode...

Probe holder can fit up to four probes. Its design to hold ph, ORP, salinity and/or temp probe. It has...