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Apex Lab Grade Salinity/Conductivity Probe - Neptune Systems
Neptune Systems$209.99Start measuring salinity in your tank and get alerts when out of range. Buy this probe if you are: Replacing an old probe. Adding salinity monitoring to your system via a PM2. -
On Sale 15%
MW600 Dissolved Oxygen Meter - Milwaukee Instruments
Milwaukee Instruments$208.00$176.80Milwaukee MW600 LED Economy Portable Dissolved Oxygen Meter with 2 Point Manual Calibration, 0.0 - 19.0 mg/L, 0.1 mg/L Resolution, +/-1.5 percent Accuracy, 100 Percent Saturation Range The Milwaukee MW600 is a portable dissolved oxygen (DO) meter for... -
Hanna Core Parameters Kit (772 Alk, 758 Calcium, 783 Magnesium) Checker HC (Saltwater) - Hanna Instruments
Hanna Instruments$194.85772 CheckerThe HI772 Checker®HC (Handheld Colorimeter) provides a simple, accurate and cost effective way to measure alkalinity in degrees of calcium hardness, commonly abbreviated as dKH. Critical to marine environments, alkalinity not only provides... -
Digital Refractometer for Seawater Analysis (HI96822) - Hanna Instruments
Hanna Instruments$200.00The HI96822 is a rugged, portable digital refractometer designed for the measurement of salinity of natural or artificial seawater. The HI96822 displays results in three popular measurement units: Practical Salinity Units (PSU), salinity in parts per... -
On Sale 15%
MC811US MAX pH/EC/Temp Monitor - Milwaukee
Milwaukee Instruments$199.00$169.15Why Guard when you can Monitor! The Milwaukee MC811 MAX pH/EC/Temp Monitor lets you monitor your pH/EC/Temp levels 24/7 automatically. RANGE: 0.0 - 12.0 pH | 0.00 to 5.00 mS/cm | 14.0°F to 140.0°F RESOLUTION: 0.1 pH | 0.01 mS/cm |... -
On Sale 15%
Pinpoint pH Controller - American Marine
American Marine$199.95$169.96American Marines PINPOINT pH Controller. PINPOINT pH Controller is an inexpensive yet rugged controller, which includes the appropriate probe and calibration fluids. This device will automate another electrical device such as a calcium reactor or... -
ORP/pH/Temperature Tester (HI98121) - Hanna Instruments
Hanna Instruments$196.00The HI98121 is a waterproof pH, ORP and temperature meter. The housing of this tester has been completely sealed against humidity and is designed to float. Electrode replacement with the stainless steel round connector means there are no pins to bend or... -
On Sale 15%
MW802 Standard Portable pH/Conductivity/TDS Combination Meter - Milwaukee Instruments
Milwaukee Instruments$185.00$157.253 meters in 1! This meter allows you to measure pH, EC (conductivity) and TDS with just one instrument and one single probe! The MW802, with a conductivity range that goes up to 6.00 mS/cm and the TDS up to 4000 ppm is ideal for testing in crop...