18 in 1 Multimeter: One interface simultaneously detects and displays multiple data, voltage, current, timer, energy, power, power factor, frequency, temperature, and more for comprehensive measurements. 2Colorful Display Screen: The multifunctional meter features a vivid LED display screen, providing clear and easy to read measurement results. The visual interface enhances user experience and simplifies data interpretation. 3Smart Design: WIFI BT connected rail mounted meter allows remote control via mobile phone, with no distance limitation. Conveniently control devices anytime, anywhere, enhancing usability. 4Wide Application: With an external temperature sensor interface and rail installation, this multifunctional meter is widely used in power measurement systems, schools, markets, household appliances, industrial settings, laboratories, and more. 5PC Housing: Made of premium PC material, the power meter has a flame retardant and fire resistant shell that can be used for a long time. 1 x Rail Meter 1 x Temperature Sensor