Ldr As Distance Measurement Transducer Trainer is an SSI India product in the Electronics category. Key specifications include SKU: PIL-E303. TECHNICAL SPECIFICATIONS: Power Supplies. DC Dual Power Supply IC Regulated +12V DC, 150mA. DC Power Supply IC Regulated 0-12V DC, 150mA. Operated on Mains power 230V, 50Hz +10% Digital Meters.