Water Monitoring Solutions for Hydrology & Environmental Applications

Common sensors include include conductivity (salinity), temperature, dissolved oxygen, turbidity and pH. These are often deployed as part of multiparameter monitoring systems or connected to data loggers, such as the HOBO MX800 series, for environmental, aquaculture, and water resource monitoring.

Common parameters include water level, temperature, conductivity and salinity, dissolved oxygen, pH, turbidity and underwater light (PAR). Quality parameters are often deployed as part of a multiparameter system, such as the HOBO MX800 series, which uses interchangeable sensors on a single logger. The right combination depends on your application, whether that’s environmental compliance, wetland health, aquaculture or groundwater management.

OneTemp supplies a range of water monitoring instruments including HOBO water level, conductivity/salinity, dissolved oxygen and multiparameter data loggers, modular water quality systems such as the HOBO MX800, MX2502 underwater PAR sensors and Lowell Instruments current and tilt meters.

Regulatory expectations, including NEPA are shifting toward continuous, time-stamped monitoring data. With National Environmental Standards requiring demonstrated environmental outcomes, periodic grab sampling is increasingly insufficient as a compliance evidence base for many applications.

Environmental consultants, councils, water utilities, mining and resources, agriculture and irrigation, aquaculture and construction all use continuous water monitoring. It’s typically used to meet licence or approval conditions, protect an asset or process, or build a long-term record of how a water body behaves.

A water quality data logger typically measures and records one or a small number of parameters, such as conductivity/salinity with the HOBO U24 or dissolved oxygen with the HOBO U26, making it well-suited to long-term monitoring applications.

A multiparameter sonde combines multiple sensors in a single system to measure parameters such as conductivity, temperature, dissolved oxygen, pH, and turbidity at the same time. Modular systems such as the HOBO MX800 extend this approach by supporting configurable, multiparameter water-quality monitoring on a single logger platform.

A water monitoring system uses sensors and data loggers to record water conditions such as level, temperature and quality over time. The setup depends on how you need to access the data. Standalone loggers record on site and are downloaded by USB or Bluetooth during a site visit. Remote systems send readings automatically over a cellular connection, so operators can view data and receive alerts without travelling to site. Our water monitoring best practices guide walks through how to choose between them.

Yes, with the right setup. Cellular-connected stations upload data to a cloud platform automatically, so you can view multiple sites from one dashboard, export data for reporting and set email or SMS alerts. USB and Bluetooth loggers don’t transmit remotely; data is collected during site visits. If a site is hard to reach, or you need to know straight away when a threshold is crossed, a cellular system is the better fit.

Yes, and it’s one of the most common questions we’re asked. Level, temperature and quality sensors across bores, dams and other sites can report into one platform. In a wireless network, sensors send readings to a nearby gateway, which forwards them to the dashboard. Where there’s no wired internet, the gateway can use 4G to send the data. How far sensors can sit from the gateway depends on the wireless technology, terrain and site conditions, so we confirm this during scoping.