Unlike the historic wrist depth gauges
used by the Italian Navy, which were usable to a depth of 30 metres, the innovative Luminor 1950 Submersible Depth Gauge
measures depths to 120 metres, and it also memorises the greatest depth encountered in the course of the dive.
Aerial snow surveys can be made by photographing depth gauges
or by picking up radio-transmitted signals from depth-measuring equipment.
No watches with built-in dive timers or depth gauges
Woodruff (1936), Aitchison and Holmes (1953), Bronswijk (1991), Cabidoche and Ozier-Lafontaine (1995), Baer and Anderson (1997), and Coquet (1998) all measured behaviour consistent with these broad conclusions using depth gauges
anchored into the soil at different depths and measurements of soil water content.
As the cutters wear down, the depth gauges
also need to be filed down, usually after every three or four sharpening sessions.
Pre-selectable depth gauges
eliminate the need for resetting when changing from cutting to grooving.
Contractor-grade planers are more rugged, have more accurate and easier-to-work depth gauges
, include standard accessories and cost $130 or more.
The 100% disposable kits include torque as well as drill guides, depth gauges
, trocars, awls, fixed drivers and related instruments needed for fracture repair requiring implants and external fixation.
Two years ago, Durham County Council decided to close the ford between October and April each year to avoid any repeat of incidents where emergency services, including rescue helicopters, have had to be called out to rescue drivers who become stuck in the ford after ignoring flood conditions, water depth gauges
and warnings signs.