This product is to be used with a BMS (battery management system). Given price is only for the relay itself. Extension (control) module is not in stock and will be provided based on required parameters.
Extension module has following parameters and can provide functions:
Built-in TTL COM PC-PL2303HX Chip Standard USB type A male and TTL 4 pin connector Simple and Easy way to give USB support to your designs Available for Linux, Mac, WinCE and Windows (XP, 2003), Vista Win 7 Black cable-----GND Green cable-----TXD White cable-----RXD Red cable -------VCC
Specifications: Cable length:about 900 mm Net weight:25 g Package weight:35 g