Welcome to Futurlec. The ELECTRONIC COMPONENTS Superstore. To find the component your looking for, either search by Part Number or visit the relative department. Need Help. CAR BATTERY MONITOR Car Battery Monitor Great new Car Battery Monitor, provides early warning of battery problems. Ideal to prevent flat batteries and other embarrassing incidents. Unit gives visual indication of current battery voltage and provides audible chirp warning as the voltage falls below 12V. Chirping increases in frequency as the voltage falls further. Kit comes complete with all components and programmed PIC IC. Detailed instruction are also included. Features • Visual Indication of Current Battery Voltage • Audible Warning when Voltage Becomes Low • PCB Terminals provided for Easy Connection • Simple and Easy To Construct • Board Dimensions: 48 x 48mm Order Now for USD$8.90