this panel meter features a 3½ digit led display with 8mm (0.31'') digit height in a low profile housing. fitted inside a threaded body which allows easy mounting of the product through a 32.5mm (1.28”) hole, this unique enclosure is ideal for quick mounting. a rubber seal provides waterproof protection to ip67 / nema 4x when fitted between the meter and mounting panel. connection is via screw terminals. the em32-1b-led is a low cost, popular part, normally stocked in high quantity and suitable for new designs.