the LU20 is a good pedal tuner. true bypass and very affordable. the dt10 however is great and in IMO, its much easier to tune than the LU20. its a but a bit more pricey though. nonetheless, still a good buy. and its built like a freakin tank!
but your budget constraints you to buy a DT10, heck go for the LU20. you wont get disappointed.
