universal trip computer for celica Options

[max-elle]

What do you think about this product?: http://www.reveltronics.com/en/products/un...computer-utcomp
I'm searching some gauges to control battery health (voltmeter and so on) and find this one, an on-board trip computer which could show inside/outside/engine/oil temperature, fuel consumption measurement (average and real-time), velocity, distance and accelerations measurement, trip meter for off-road, voltmeter and much more.
It doesn't need OBD (and this is important for me because here in Italy we don't have OBD celica.

Someone who already have tried or know about it?