Due to be a lot of sensors in the market,and diverses parameters,and Sensors it's some that could depreciating.It's important test the sensors with others sensors in the market,to know well the parameters, and the application of the parameters in the operations.
Buy sensors it's something that could be questioned,specifcly for the fleet's.In the general sensor it's an immobilized investment,and your risk it's propotional of the oscilation of the market,the fleet's could buy a sensor and with a drop-down of the market the fleet's could be idle,and loss your investiment (the same situation could be with the truck).
The fuel economy provided by the ecodrive could be questioned:The first point fuel it's a variable cost in the fleet's wich oscilate with transported volume,the second point fuel it's a commodity with a oscilation in the international market,the third point it's the fuel economy should considered the age of the vehicle,age ,engine hours.
As managament practicies ,it's not good mix with variable costs,investment in immobilized product's.The best practicies it's the company analysis your fixed cost's,besides that the price the sensor should be proportional to the age of the fleet's/engine hours.
In the general the operations with machines (truck,agricultural tractors) they are submitted to attend a demand in your process,wich generate a physical works.Along the time due to the physical works wich they are submited,it's natural the machine have problems.
Some indicators wich it's intersting it's:The machine power,the power of the machine used in the process,the engine hours accumulated,and the fault codes.The companies buy trucks or others goods,during pre-determined , during pre-determined service life.