英国采购需求：ZigBee WiFi 设备 ODM、智能家居、智能建筑、物联网解决方案、楼宇管理系统、智能恒温器温度控制器

I hope this message finds you well. I'm reaching out to inquire about the accuracy level of your energy measurement device. I've been facing some issues with my energy supplier regarding discrepancies in readings, and it's crucial for me to have reliable information on the device's performance. Can you provide any specifications or documentation regarding its accuracy? Additionally, if there are any certifications available for this device, that would be very helpful. I want to ensure that I have solid evidence to support my case in this dispute. Your prompt response would be greatly appreciated as I need to address this matter urgently. Thanks in advance for your assistance!