Data loggers range from simple standalone recording devices that can be manually downloaded, to Internet-capable remote terminals that can push their data to a server that users can access via an Internet browser.
At NIWA we mostly use data loggers manufactured by our Perth-based subsidiary, Unidata PTY. We have a say in the design and can feed back any useful changes to enhance a product as we use it in a wide range of practical applications.
As unlimited access to historical and real time server-based information becomes more widely known and appreciated, the demand for Internet capable loggers is growing. However there is still a place for basic loggers in applications where accessing the data isn't urgent or the project can't support the ongoing server and ISP costs associated with telemetry.
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Data Logger - DAA H-500XL
This telemetry-capable data logger is designed for remote operation and used extensively in NIWA's national hydrometric network of water level monitoring stations.