Car Key Testers - which one is worth attention?

[laxitylabs]

Hello members,

I know there is not one device which is universal and the best but maybe from yours usage - is there any remote key tester worth to buy?
I wish it could measure and show some informations about Key etc.

Target : infra red, RF pilots etc.

thanks!

[Meat-Head]

Buy love you long time zb, then cellphone