It does have a voltage meter for battery output, and ohm reader for users who don't own those for their mech. Very portable and affordable.
I didn't realize that this was an older product.
First of all, the voltage meter isn't that useful for a mech user, because the vape will already be way too weak, so the cell is going to be replaced anyways long before the cell will hit its cutoff voltage.
That "short protection" isn't very useful as well, because most shorts that lead to critical failure happen inside the tube itself. The adapter just can not prevent that.
The 10s limit seems nice, but you should not put your mech aside unattended with a cell in it anyways. But then again the same is true for regulated mods. To carry it inside your pocket with that adapter on top is no option as well, because of the size.
Aside from the absurd .3 ohm limit, the adapter/chip diminishes the performance. First of all you have more connections, which leads to a larger voltage drop, which in turn requires you to build even lower ohm coils, but the chip itself needs additional power too, which isn't available to fire the coil as well.
The only thing that may be worthwhile is the ohm reader, but for the price you can already get a proper ohm reader.
