A fishing rod ruler including an elongate flexible body with a number of length markings provided thereon, the elongate flexible body to be at least temporarily applied to a fishing rod.

A fish measuring tape and a method for using the same is provided. The fish measuring tape comprises an elongated body portion having a first end and a second end. The body portion includes a plurality of markings designating increasing length from the first end towards the second end. The body portion further includes a plurality of graphic representations that allow a user to identify different fish species. The plurality of graphic representations is aligned with a specific marking of said plurality of markings to indicate the regulated length and size of a specific fish species that can be retained for personal use. The body portion further comprises a plurality of bag limits configured to identify a quantity for each said specific fish species that can be kept.

A measurement device and method that allows for precise placement, as well as more accurate measurement of various body parts, including vessels, lesions, and/or lumens of vessels of various body parts. The measurement device comprises one or more measurement tapes having (i) a plurality of measurement marks for measuring a distance and/or a length of a vessel and (ii) a plurality of circular indicators for measuring a diameter of a lumen of the vessel.

Sensor apparatus for an elevator with a hanging position measuring tape for detecting a critical change in length of the position measuring tape comprising a carrier, comprising a carriage on the carrier, comprising a tape holder on the carriage, comprising a tensioning device between the carrier and the carriage in order to be able to tension a secured positioning tape, comprising a detection device for detecting a critical displacement of the carriage on the carrier on the basis of a critical change in length of a position measuring tape to be mounted, and comprising an adjusting device.

The invention relates to an apparatus for measuring a depth of a bore hole. The apparatus includes an elongated strip including linear measurement markings along at least a portion of a length of the strip. A weight is provided at an end of the strip and the strip is comprised of material that has an elastic (Young's) modulus of greater than 0.5 and less than 2.0 GPa. Embodiments of the invention are adapted to quickly and effectively measure the depth of a bore hole or a depth to any major obstructions such as loose rocks that may have fallen into the bore hole.