Well as all he or she will do is push the test button, perhaps change the batteries and report any that fail after that as needing replacement, or maybe velcro in a new one along side the dead one, you'll be lucky if their skilled installer has any technical qualification at all

And that is more more less correct for the task at hand, anything else is an overspend. What is amusing is the hopeless ebullience  of the marketing bull from the agents, who presumably take a large share of the fee.

However, it seems anecdotally (I never need one) that chaps with a van with one light not working who can fix  taps, door locks , unblock drains do weeding etc are in short supply, I know of at least one chap who gave up teaching mech eng at his local college of FE to become an odd job man, and has never looked back, in terms of both happiness and income. Though some odd jobs are very trivial, (one I am thinking of was picture hanging - not some old master in a frame, just some snapshots of family and friends.)

M.

Well as all he or she will do is push the test button, perhaps change the batteries and report any that fail after that as needing replacement, or maybe velcro in a new one along side the dead one, you'll be lucky if their skilled installer has any technical qualification at all

And that is more more less correct for the task at hand, anything else is an overspend. What is amusing is the hopeless ebullience  of the marketing bull from the agents, who presumably take a large share of the fee.

However, it seems anecdotally (I never need one) that chaps with a van with one light not working who can fix  taps, door locks , unblock drains do weeding etc are in short supply, I know of at least one chap who gave up teaching mech eng at his local college of FE to become an odd job man, and has never looked back, in terms of both happiness and income. Though some odd jobs are very trivial, (one I am thinking of was picture hanging - not some old master in a frame, just some snapshots of family and friends.)

M.