Power supply voltage: 5 to 30 V DC. Equipped with an accurate miniature voltage transformer. Performance: Accurate sampling and proper compensation for stable readings. Function: Measures AC voltage up to 250 V. Output analog quantity is fixed and suitable for general measurement systems. Easy to use: Uses ZMPT101B series accuracy voltage transformer and a precision operational amplifier circuit to reliably measure up to 250 V AC. Form factor and build: Compact form factor suitable for PCB mounting with a miniature voltage transformer and precision circuitry for reliable operation. Key attributes: function meets AC voltage measurement needs up to 250 V, compatible with microcontroller projects, compact size, accuracy, and fixed analog output. Applications Microcontroller based energy meters and home automation projects measuring mains voltage Data logging and lab experiments for voltage measurement Industrial equipment monitoring and power quality evaluation