Universally fits most 12V/24V DC Motorcycles Cars, Boats, ATVs, UTVs, RVs, Campers, Trailers, etc This voltmeter is used to monitor the voltage of storage battery and timely grasp your battery voltage status. It flashes to indicate that the voltage is too high. It is waterproof and durable for a long period of service. There is a LED display with 3 indication colors to show different voltage status, which can test the vehicle battery condition and perfectly improve safety. Features: Material: ABS Color: black shell Input voltage: DC 12V Voltage measurement range: 5 - 15V (blue digital display) LED color: Red (11.3V-11.9V), Yellow (12V-12.5V), Green (12.6V-15V) Package weight: approx. 22g Package Included: 1 x LED Display Voltmeter Package Quantity: 1 piece Product color: black Product size: 37*41mm Note: Manual measurement, please allow 1 - 3cm error!!!