The Lascar EM32-1B-LED is a 3 1/2 digit LED voltmeter, designed to be panel mounted into a 32.5 mm (1.28") diameter cut-out. The module features a metal bezel and rubber seal providing IP67/NEMA 4X protection to the front of the module when fitted into a panel and secured with the nut provided. The meter features 8 mm digit height, 3 decimal points, auto-polarity, auto-zero, 200 mV full scale reading and a very low current consumption. The EM321BLED is designed so no soldering is required. Connection is via screw