http://www.channeleco.com/en/Item/Show.asp?m=1&d=1192 Application: QT-1612 is a kind of Gasoline-powered 2-stroke heavy backpack insects sampler which can collect various of insect samples, Both flight and adsorption insects can be collected such as mosquitoes or sandflies. It can work in the meadows, forests and other environment, widely apply to the field of agricultural and medical entomology. Features Gas-powered, bigger adsorption insets can be collected Iight, long-lasting, easy to use Includes lightweight aluminum backpack frame Collecting bag is replaceable