The HANNA HI 711 Checker HC bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and only give 5 to 10 points resolution while professional instrumentation...
Designed specifically for aquarium use to measure the salinity of natural sea water (NSW). Most handheld saltwater refractometers available in the hobby are designed and calibrated for testing brine solution, i.e. sodium chlorid...
Precision of +/- .01
10` coax cable
Sealed Ag/AgCI reference.
Standard BNC connector
The Captive Purity Refractometer is an incredibly accurate and easy to use device that eliminates the confusion associated with inexpensive hydrometers. Just place a couple of drops of water on the prism and hold to the light. Rea...
10` coax cable
Platinum band electrode.
Standard BNC connector
The Advanced Leak Detection module easily connects to any Neptune Apex System (Apex, Lite, or Jr.) and gives you up to four locations of leak detection.
Two different types of leak detection probes are available (sold separate...
Multiple Inputs The RKM-SL1s five input ports provide a broad range of monitoring options for all the most common probes.
1 x pH port: The pH port is a standard BNC connection. While any standard probe should work, we suggest u...
American Marine PINPOINT ORP Replacement Probe
10 foot cord
Platinum wire sensor
High supression cable jacket
Digital Aquatics ORP Probe
Manufacturer: Digital Aquatics
One Male BNC
Cable Length: 6 Feet (2 Meters)
Probe Body: Dia 1/2"
Probe Body: length 6.5"
One Digital Aquatics ORP Probe
The RKM-SL2 is the newest System Lab module from Digital Aquatics. It's a big leap forward with fully (and individually,) isolated ph and salinity ports. On top of that, the Digital Aquatics salinity probe is equipped with full di...
Pro-Heat D-58 LED Digital Display Temperature Controller Features:
Max safe output: 800 watt
2-Seperate digital display (water temperature / set temperature)
Dual scale display (°F or °C)
Precision (±1.8°F / ±1°C...
The PH-80 is an economically priced, reliable pH meter that is ideal for testing applications such as hydroponics & gardening, pools & spas, aquariums & reef tanks, water ionizers, drinking water and more.
The Lunar Simulator Module (LSM) allows the AquaController to control and vary the intensity to a 2 to 5 LSM Lunar LED String for a realistic moon cycle simulation. The moonrise and set times follow the true lunar cycle. LSM Lun...
Professional Waterproof pH/Temp Meter Very reliable waterproof pH meter measures with an accuracy: of +/- 0.02 pH.
Measures pH and Temperature
Auto-ranging three point calibration with digital fine tuning
COM-100: Waterproof EC / TDS / Temp Combo Meter
Ideal for all water quality testing, water purification applications, wastewater regulation, aquaculture, hydroponics, colloidal silver, labs & scientific testing, pools &a...
LSM Lunar LED String – 5 LEDs
*Use this string of LED in combination with your Apex system and Lunar Simulation Module (LSM)
When you purchase the Apex Controller and Lunar Simulation Module you need to outfit it with a ...
Spare electrode for HI 98121, HI 98127, HI 98128, HI 98129 and HI 98130
4 X Switch Ports With four switch input ports you can add another level of automation to your tank/system. Add float switches, leak detectors, ATO systems, and much more! IMPORTANT: Never apply power to the switch inputs. They ...
Expansion Socket The Digital Aquatics Expansion Socket allows you to control high current devices without affecting your ReefKeeper power budget
EC/TDS/Temp Water Resistant Hydrotester
The COM-80 is an economically priced, reliable EC/TDS meter that is ideal for testing applications such as hydroponics & gardening, pools & spas, aquariums & reef tanks, water ionizers, d...
Increased Power Handling The PC1 is useful for controlling those high current devices like chillers and large lighting fixtures. The PC1 can supply up to 15A (10A inductive) to one or more devices. Both outlets controlled as on...
Spare pH electrode, with Teflon ® junction, 2 m (6.6') cable, for general purpose, water treatment and agriculture.
This handy pH pen/meter is a great tool for any aquarist. It is extremely easy to use and is waterproof. Simply dip the meter in the solution to get the pH reading. Its high accuracy and resolution also make it suitable even for t...
Calibration kit for Neptune AquaController Dissolved Oxygen Probe.
Hanna Instruments Replacement Electrode for DiST 5 Waterproof Low Range EC/TDS/Temperature Tester