Once a year, technicians from NIWA’s North Island Field Team don helmets and head lamps to check a network of CO2 sensors in the world-renowned Waitomo Caves. The sensors help make sure that heavy breathing visitors aren’t wrecking the caves’ precious natural structures and microclimate.
Since the early 2000s, NIWA has been part of the international Argo programme. Argo floats takes the pulse of the oceans, collecting and distributing temperature and salinity observations from a global network of more than 3700 underwater robots.
Despite many centuries of maritime exploration, only a fraction of our planet's seafloor has been observed. NIWA Deepsea Scientist Di Tracey tells us what it feels like to probe deep beneath the waves to see what's living on the ocean floor.
A variety of input and output modules are available to use with data loggers. These range from signal conditioning and isolation devices to input expanders and units that enable loggers to control external devices.
We can supply calibrated linear and thermistor temperature sensors suitable for connecting to our range of data collection devices. The calibration information supplied must be entered in the logger scheme.
A self-contained advanced hydrostatic water level sensor with integrated air compressor. Easy to install and no stilling wells, gas bottles or regulators are needed. Keeps the electronics out of the water.
This smart self-contained air compressor bubbler system enables you to measure water level. Water pressure is coupled through a gas line that can be connected to a pressure-to-electronic-output transducer.