PROsine 1800 Statpower inverters are pure sine models that also feature built-in battery chargers, digital metering, and AC transfer switches like the Trace SW series. Although their wave form is superior, they cannot supply large starting surges like the Trace SW models. order an item Inverters PROsine 1800 1800-watt, with GFCI AC outlets $ 1125 PROsine 1800 1800-watt, with AC hard wire $ 1125 PROsine 1800 1800-watt, with AC hard wire & transfer switch $ 1170 PROsine 1800 1800-watt, 24V with GFCI AC outlets $ 1242 PROsine 1800 1800-watt, 24V with AC hard wire $ 1242 PROsine 1800 1800-watt, 24V with AC hard wire & transfer switch $ 1287 PROsine 1800 accessories