Introduction

The Huawei SmartPS-100A-S0 is a high-precision single-phase power sensor designed for modern solar PV systems. Engineered for accuracy and simplicity, it delivers real-time monitoring of voltage, current, power, and energy data—making it an essential component for residential and small commercial installations.

Built with Class I measurement accuracy, the SmartPS-100A-S0 ensures reliable and consistent readings. It operates across a 176–288 VAC voltage range and supports currents from 0.5–100 A, making it suitable for a wide variety of grid environments. Despite its performance capabilities, the sensor is extremely energy-efficient, consuming ≤1.5 W of power.

Installation is effortless thanks to its compact DIN-35 rail design. Once installed, users can easily configure and view live measurements through the integrated LCD display, offering quick access to system data without additional tools.

For remote monitoring or system integration, the SmartPS-100A-S0 features RS485 communication with support for the Modbus-RTU protocol, enabling seamless data transmission to inverters, gateways, and energy management platforms.

Designed for durability, it provides stable performance in harsh conditions with an operating temperature range of –25°C to +60°C and humidity tolerance up to 95% RH (non-condensing). Each unit includes a 10 m RS485 cable and a 100 A / 40 mA CT (5 m) for straightforward deployment.