1. Advanced Power Management: This energy monitor features an active power threshold setting that triggers an alarm when power usage exceeds the preset limit. 2. Software Reset Functionality: Equipped with a reset energy feature, this monitor allows for easy software resets. 3. Precision and Reliability: Designed for high precision measurements with fast response times, this power meter ensures accurate data collection and stable communication via. 4. Protective Shell: The included shell safeguards the communication module from physical damage and environmental factors, extending the lifespan of the device while maintaining its aesthetic appeal. 5. Note on Accessories: Please be aware that this package includes the communication module only. Due to different batches, the appearance and printed text of the product , but it will not affect the use. Colour:As Shown Material:PCB Package Contents: 2 * TTL Serial Port 10A Host 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.