The Volt Stick LV50 is the only prompt voltage detector approved by Cadent and is a mandatory device for all Cadent engineers and sub-contracted engineers. http://search.osakos.com/cache.php?key=c0792b69d674164f3134f6a4d8b0fd4b&uri=http%3A%2F%2F80.82.64.206%2Fuser%2Fdollardew37