Programmable High Accuracy Power Meter: This VA Meter is a programmable, high- power measurement module designed for developers, engineers, and makers who need accurate voltage and current monitoring. It integrates advanced sensing circuits to provide stable and reliable readings suitable for laboratory testing, product development. Voltage and Current Measurement: Supports precise measurement of both voltage and current for DC , enabling accurate VA (voltage-ampere) calculations and power analysis. Suitable for monitoring power consumption, efficiency testing, and fault diagnosis in electronic devices, power modules, and IoT equipment. High Stability & Reliability: The meter adopts high-quality components and optimized circuit design to high accuracy, low drift, and good linearity across the supported range. It is designed for stable long-term operation in demanding application scenarios such as industrial control, smart , and continuous data logging. Easy Integration & Development: With multiple interface options and rich software support, the VA Meter can be quickly integrated into your existing systems. It is suitable for use with main controllers and other microcontroller platforms, offering convenient firmware development, calibration, and customization through open development tools. Ideal for Power Monitoring Applications: Perfect for DC power analysis, bench testing, labs, educational projects, and field measurement tasks. Whether you are optimizing power usage, building smart devices, or teaching power electronics, this programmable based meter delivers accurate and repeatable measurement results. VA Meter is a professional programmable high- power meter designed for accurate voltage and current measurement. This product is based on the main control module, supporting WiFi functionality. It features two serially connected INA226 current and voltage measurement circuits, providing current detection resolutions of 2.5uA and 250uA, and supports a measurement range of 0-5A and 5-24V (1-24V in isolation mode). The product can be powered through a USB-C interface or Base terminal input and includes built-in power and signal isolation. Users can select between isolated measurement via USB power or non-isolated measurement using direct power through a toggle switch, catering to different application needs. The accompanying expansion BASE includes relay on/off control and a Grove port for secondary development. Additionally, the instrument supports OTA firmware upgrades and USB /OTG functionality, allowing users to edit and view data and configuration files stored in the main control file system on a PC. M5 also provides a free online data interface, enabling users to upload to the EZData platform for remote access and browsing, significantly simplifying IoT application development. Color: As Shown Material: plastic Package Contents: 1*VAMeter 1*VAMeter Base 1*Rail Fastening Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.