Thunder TDR17012 Battery Monitor Display quad lock phone cases and accessories and wiring is strongly recommended

and wiring is strongly recommended before installation

The T400X2AD includes PLC2 remote compatibility — confirm whether the T400X4AD supports PLC2 remote operation with Rockford Fosgate if this is a requirement

Those are the blister packaging dimensions

Internally pre-wired to a 2-ohm load

Push-fit design with supplied fly lead connector for easy installation

Thunder TDR17012 Battery Monitor Display quad lock phone cases and accessories and wiring is strongly recommendedMaking Adventure More Affordable & Accessible for 4WD Enthusiasts! Battery Monitor Display Thunders easy to install Battery Monitor Display allows you to monitor you your battery percentage, current draw, current inwards and wattage usage in one compact and easily accessible screen. Designed to work with most 12 Volt Gel, Lead Acid, Lithium, AGM Deep Cycle, Lithium Ion phosphate and Calcium batteries. Specifications: Operating Voltage: 8 60VDC Working