Ujt, Put And Opto Coupler Characteristics Digital Meters is an SSI India product in the BASIC ELECTRONICS LAB category. Key specifications include SKU: PBE-E206. TECHNICAL SPECIFICATIONS Power supplies. DC Supply IC Regulated 0-15V DC, 150mA. DC Supply IC Regulated 0-30V DC, 150mA. Operated on Mains power 230V, 50Hz +10% Digital