For $1385 I'll walk into a cave and tell you when I can't see anymore :-) Cheers, Stefan
From: David [mailto:[email protected]] Shouldn't your cave map note the normal threshold boundary of total darkness? Here is an e-mail I received from a company that sells a gadget that could measure light intensity in a cave passage and possibly determine the boundary line of total darkness in a cave: _____________________________________________________________ This sensor is only measuring light, which is the visible part of the spectrum. It will not record any UV or IR radiation. If this is what you are looking for, the meter and sensor will cost $1,385.00, FOB Glenside, PA. -- IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you. --------------------------------------------------------------------- Visit our website: http://texascavers.com To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
