TecMate OptiMate Monitor DIN / Auto Battery Monitor The TecMate OptiMate Monitor DIN / Auto is a precision tool for 12V battery monitoring, offering real-time voltage readings and charging system checks. It easily connects through either a DIN socket or a standard Auto socket / cigarette lighter socket. With intuitive LED indicators, it simplifies the process of battery status monitoring while ensuring the vehicle's charging system functions correctly. Features: Ideal for 12 V lead-acid and 12.8 V lithium LFP (LiFePO4) batteries SAE to DIN or Auto 12 V socket adapter / cigarette lighter socket with state of charge monitor that plugs directly into your motorcycle, or Atv/Utv, 12 V power port SAE connection system fits any SAE standard 2 pin connector, includes in-line seal that mates with OptiMate SAE Battery status indication every 3 seconds (Led blinks) Includes weatherproof sealing cap Fits both auto and bike sockets. 2 Automatic modes: Battery charge level monitor (single LED blink mode) Charging system test (arrow mode) Remains flexible at very low temperature -40C/-40F Length 10''/25cm