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All rights reserved. Under the copyright laws, this manual may not be copied, in whole or in part, without the written consent of Delta-T Devices Ltd. Under the law, copying includes translation into another language.

Copyright © 2010 Delta-T Devices Limited

BF5 Sunshine Sensor optics design and theory are Copyright © 1996 John Wood, Peak Design & Development, Winster, Derbyshire, U.K. and protected by Patent Nos. EP1012633 & US6417500.


Windows is a registered trademark of Microsoft Corporation. All other trademarks are acknowledged. Some names referred to are registered trademarks.

CE Conformity

The BF5 Sunshine Sensor conforms to EU regulations regarding electromagnetic emissions and susceptibility and is CE marked by Delta-T Devices Ltd.

For certificates look on our website at www.delta-t.co.uk , or the Delta-T Software and Manual CD.


To maintain conformance to CE standards, the equipment must be used as described in this manual. Modifications to the equipment may invalidate CE certifications.

Delta-T Devices Ltd reserves the right to change the designs and specifications of its products at any time without prior notice.


John Wood, Edmund Potter, Stephen Nobbs, Nick Webb.