Based on the standard identification for integrated circuits in this series, the HW133 (often found with variants like v10, V1.0, or simply HW133) is a High-Precision Digital Temperature and Humidity Sensor module. It is widely used as a cheaper alternative to the DHT11/DHT22 series, offering better accuracy than the DHT11 but similar form factors.
While rated for 3A, the small surface area means it can get very hot. If you plan to run it at 2A or more continuously, it is recommended to add a small heatsink or ensure active airflow. Potentiometer Sensitivity: hw133v10 datasheet
Dust Accumulation: Periodically check the intake vents. Dust buildup is the primary cause of overheating failures in rectifier modules. Based on the standard identification for integrated circuits
For full electrical timing charts and pin-mapping, technical documentation is often hosted on specialist repositories like or manufacturer-specific portals for companies like Dust Accumulation: Periodically check the intake vents