As above, its got to be above board and I believe it is good practise to make the data available to an employee.
We have them, they are extremely unpopular, partly for the obvious reasons but also because ours automatically alert if we go out of area or stop for too long out of area. i.e. you get alerts at level crossings and in traffic!
Not their vehicles, so they can bitch all they like
Poor attitude…you should at least try to reason with the employees. You get their backs up, they won’t exactly become the most productive and efficient workers. Also, if you are only fitting them to certain vans for certain employees, you would be good to apply a criteria such as they have been involved in an accident within the last 12 months or some other reason. Otherwise you could have a harassment case on your hands if they feel they are being unfairly targeted compared to other employees without good reason.