Feature 1. With digital display, intuitive observation 2. Parameter display precision and stability, low power consumption 3. Easy installation, stable performance, anti vibration and anti bump 4. When the alarm that is displayed flashing alarm Item Description Name: 12v/24v Car Truck LCD 2 in 1 Gauge (Voltage & Water Temperature Gauge ) Material:Plastic Shell Temperature sensor of screw diameter :10mm Power Supply: DC 9V - 36V Red --- power + (Red black) --- power - Water temperature measurement range -10C110C Fitment Suitable for 12V,24V Car universal. Alarm Poin Water Temp Higher than 95C the Water Temp Date will Flash , For 12 Voltage , when the Voltage lower than 10.5V , The Date will Flash , For 24 Voltage , when the Voltage lower than 16V or higher than 22V the Date will Flash . Package Included 1x Water temp Gauge 1x Water temp sensor (10mm) Note -If the surface of our product is broken or affects the use, please don"'"t leave us any negative comments, please