i am a electrical and refridgeration trades person and much of my work is on shipping vessels.Over the years i have missplaced or lost tools on the ships and various other places,some of these tools being very expensive.So i thought that in this day and age there must be some way or device to trace these lost tools .This devicde could be in the form of a miniture transmitter that could be attached to a tool in a unobtrusive way, be waterproof,shockproof.and have a range of say 100m.This could be recieved by somethinjg like a mobilphone size reciever with a 360 degree indicator showing direction and which beeps when in 1 m radias of tool.This device would be turned on at departure from job and if tools were not in tool box it could beep to let you know you have left a tool on the job and you could go retrieve it instantly.
This device would have to be reasonable cheep say $500.00 for reciever and 20 transmitters.If this was the case i would buy 10
aussiviking.