Features: Rugged for Smart Design - This radiator thermometer cover features a durable aluminum design and premium construction for long-lasting durability and weather resistance for the toughest off-road trips. Its safety seal allows it to be used in wet, dry, hot and dusty climates, and no doubt gives you real-time visibility of engine temperature. This high-pressure radiator cap will give you real-time temperature monitoring with accurate readings in both Celsius and Fahrenheit (32-400). It has a bright color gradient meter that provides high visibility to assist you in understanding what the temperature of your engine means, and can help prevent costly engine overheating. Combines a radiator cap with a temperature gauge, measure coolant temperature to tell if it is safe to open the radiator cap. Prevent leakage while adjusting the pressure balance for the water for tank to keep the water level balance. Specifications: Material:Iron Type:Big for Head,Small for Head Pressure: 0.9 bar, 1.1 bar, 1.3 bar(Please confirm your size before purchasing, the size is suitable for use.) Length:Approx.45mm/1.77in Net Weight:120g Package Includes: 1x Thermostatic Radiator Cap note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.