Help!: old school dehydrator?

Oshinlvr7

hello all! I just acquired my mom’s dehydrator (it’s brown,round and has 5 trays)... and it doesn’t have any temperature controls. how do i know that it’s not going past 118 degrees? (unfortunately, i don’t have the instruction book and and it doesn’t say what brand of dehydrator it is.) Any help would be appreciated… thanks! : )

Oshinlvr7

Thanks omshanti! : )