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Smoke detectors

Variety of smoke detectors in an office cupboard.

Fire engineer Mike Spearpoint keeps smoke detectors in his office cupboards. He is testing the duration of the batteries. Some have lasted for 10–11 years.

Glossary

Rights: The University of Waikato Te Whare Wānanga o Waikato
Published: 3 November 2009Size: 1.79 MB
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