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All Apogee Instruments products are sourced through our official partnership with their New Zealand distributor Scott Tech, any items in stock locally will be sent day upon payment clearance with NZ Post and any items not in stock will be sourced from upon payment clearance with delivery expected to take 2-3 weeks. Please contact us direct if you would like to know stock levels and/or delivery times for your order.

Apogee offers two types of pyranometers; our original silicon-cell models and our new line of thermopile pyranometers, both of which are now ISO 9060:2018 Class C rated (previously known as second class). Silicon-cell solar radiation sensor models are excellent for applications that do not require the higher accuracy and cost of a thermopile pyranometer. They are less expensive and have a faster response time, but have higher errors under cloudy conditions. Our new cost-effective thermopile pyranometers features a blackbody thermopile detector that provides a much broader and more uniform spectral response for better performance in all atmospheric conditions that compares favorably to Class A thermopile pyranometers at a fraction of the cost. Applications include shortwave radiation measurement in agricultural, ecological, and hydrological weather networks, measurement of global solar radiation, and optimizing photovoltaic systems.


10 products

10 products