The Tek-LCD 7803B is an explosion-proof flow rate/totalizer that can display flow rate and total from a pulse output flow meter. Its display has a five digit upper line for rate, a seven alpha-numeric character lower line for total, and comes standard with a backlight. The Tek-LCD 7803B carries FM, CSA, ATEX, and IECEx approvals for use in hazardous areas. It can be powered from an included battery or a 24 VDC external power supply.