• Internal integrated circuit with precision SMT technology, providing resistance to electromagnetic interference and stable performance. • Manufactured with flame-retardant materials, resistant to impact, heat, low temperatures, and with excellent insulation properties. • Compact and lightweight design, easy to install on a 35 mm DIN rail. • Suitable for measuring active energy in single-phase alternating current systems with a frequency of 50 Hz or 60 Hz indoors. • Operates in environments with temperatures from -25 ℃ to +55 ℃ and relative humidity up to 95%, without the presence of corrosive gases, dust, mold, salt mist, condensation, or insects. • Backlit LCD screen that displays temporary consumption (erasable) and total consumption (non-erasable) in two separate rows. • Uses microelectronics and digital processing for precise and reliable measurement of electrical energy. • Features low energy consumption, high accuracy, high overload tolerance, and anti-electricity theft function. • Suitable for monitoring electricity consumption in homes, rental houses, electrical cabinets, and various household appliances.