What sort of insect do you want them for and where will it be ?
I had double tube Insecticutors in my small fully closed up filtered air in , very slight vacuum extraction out mammal sheds.
I found Ihad to empty the 24 x 8 x 3 inch deep trays every other third or fourth day day , they were full of dead Mozzies , blue bottles and no end of wasps . There were very very few honey bees from our 14 hive apiary that was situated 30 mtrs away .
Wasps can get in through tiny openings , IE. under doors and remembered where they came in so they could get out if they got passed the electric zapper.