Inquiry
Detail specification, pls download it from below link:
http://www.enjpower.com/UserFiles/202310511461220230923%20%E6%89%93%E5%8D%B0%20BM21%20Smart%20Bluetooth%20battery%20monitor.pdf
Below video link to view our battery monitor EJ-BM21 install and performance
https://youtu.be/H661Zt-Ue6s