What are the differences between the Inspector and the Inspector II?

The Inspector II is an updated TM200/TM400/Inspector.  It is smaller and lighter but works the same way as the TM200/TM400/Inspector and is just as durable. It also contains two coin cell batteries, which lasts longer than the TM200 or TM400’s alkaline 9V batteries. At this point, we do not make the TM200 any longer, it has completely been replaced by the Inspector II.