Who has the best two box detector?

[sabre15]

Who makes the best 2 box and why?
What are the best conditions to use a 2 box?

 

[dazoff]

Discovery TF-900 would be the best it has to be the most capable unit out there. They have 30 years of experience with two-box work. They use to make the two-box unit for Whites till a fall out then whites started to make there own. A two-box can be used to hunt large items or caves, mineral deposits.