The NKE Aquaprobe-5000 Water Monitoring Probe is the largest of our advanced portable multiparameter water monitoring probes. It comes with a range of standard sensors included, and much like its smaller counterpart, it offers more customization options that allow you to add extra sensors to the probe. All of our probes are constructed from tough marine grade aluminum that has been hard anodized, making it suitable for use in both fresh and salt waters.
The NKE AM-200 GPS Aquameter is the original handheld water quality meter with built-in GPS. The built-in GPS receiver allows the meter to record the location of every dataset, meaning you will always know where your data was captured. The meter is designed to be picked up and used by anyone intuitively. It requires no boot-up or warm-up time and allows you to record data with a single button press.

• The AP-5000 features 4 Auxiliary sockets to allow you to add further sensors to the probe. Unlike the AP-2000, these auxiliary ports are unrestricted. This means that each port can take either an Ion Selective Electrode (ISE) or an optical sensor. This makes the number of potential sensor combinations vast.
• The probe can be used with a variety of cable lengths via the AquaConn Connectors. Cables available in 3, 10, 20, and 30m lengths as standard.

• Customizing the AP-5000 is simple; there are 4 ports, and you can add any combination of our ISE and optical sensors into these ports. Probes are supplied with blanking plugs in the auxiliary ports as standard. Simply unscrew these to add your extra electrodes. If you have any questions regarding these options, please Contact Us with your query .

• The AP-5000 features a depth sensor. This sensor is capable of measurement accuracy of 0.5%FS. This is very comparable to a dedicated water level logger such as the LeveLine-ECO: 0.2%FS, and the LeveLine (titanium): 0.1%FS.
• The depth is zeroed automatically whilst the conductivity is reading zero. As soon as the conductivity registers over 0 the probe depth begins to be calculated. Once the probe is lowered to the desired depth it must be secured, then using the GPS Aquameter the depth can be zeroed once again. Now the AP-5000 will detect small changes in the water level and display them as a positive or negative change

Each sensor serves a unique purpose, and so is unique in its function and composition — but all are made with high-quality, durable materials that allow you to measure accurately, time and time again.
If you’re not sure what water quality testing sensor you need, do feel free to contact us to discuss your specific requirements.
Some of our most commonly-used sensors include:

• pH — to measure water acidity
• Temperature — to measure temperatures between -5 and +50°C
• EC — Electrical Conductivity — to measure the concentration of salts
• Turbidity — to measure water clarity impacted by the presence of suspended particles
• DO — Dissolved Oxygen — to measure the level of oxygen in the water

Find out more about our AquaProbe Electrodes Even if you will be using your Aquaprobe with an AquaLogger or other device, you will still need a GPS Aquameter. The meter gives you real-time readings via the display, which are useful when deploying your logging system, as it allows you to check that the parameters are all reading ok.