1) Using the photoelectric transmission direct reading technology to read thecharacter wheel data directly without cumulative error. 2) Support remote real-time meter reading, set parameters, read and write data. 3) Support on-site real-time meter reading, setting parameters, reading and writingdata, can combined with mobile phone APP, which is convenient and practical. 4) Fully waterproof potting design, with IP68 waterproof level. 5) Full-position photoelectric direct reading, no carry blind area, no software carryprocessing.