I've been using the zappers in the Amazon link below for years. They burn wings on big stuff. They have survived both children and adults with the same frying delights. At bedtime, I gently sweep inside the van, then store it close by. The two outside screens are ground, and the inside grid is the high voltage. Fried bug goo trapped from inside to outside will ground out the voltage, and has to be removed. Forgetting it one trip was a hard learned lesson. So was buying the first one from Harbor Freight that was a disappointment until the one below was demonstrated to me.
Be brave! Test with something metal held against the outside screen and slid toward the center hot grid. The loud pop means functional. For some reason, when I demonstrate that, there have been few takers. Fried bug stink is a wonderful smell.
https://www.amazon.com/stores/page/...da29-54dd-4781-b186-6455f8629ece&ref_=ast_bln
Be brave! Test with something metal held against the outside screen and slid toward the center hot grid. The loud pop means functional. For some reason, when I demonstrate that, there have been few takers. Fried bug stink is a wonderful smell.
https://www.amazon.com/stores/page/...da29-54dd-4781-b186-6455f8629ece&ref_=ast_bln