Checkblue is a fully open Bluwtooth low-power tool application running on IOS systems, and Android version is under development now. With checkblue, you can test any low-power Bluetooth product without restrictions. Checkblue supports reading and writing the characteristics. Besides, the application supports Meeblue Beacon by providing webpages for parameters configuration. After the configuration is completed, the corresponding data can be directly exported for mass production. What's more, we customize some functions in Checkblue for Meeblue temperature and humidity beacon. It can collect the temperature and humidity data at the interval of every minute, display and synchronize the historical Temp/RH data of the last two months. We strongly recommend using this tool to test BLE products.