Option1 Description: FITMENT: Car truck water temp gauge voltmeter for 12V/24V car vehicle Universal. STABLE PERFORMANCE: Car truck water temp gauge voltage meter anti vibration and , low power. LED DIGITAL: Car voltmeter water temp gauge meter with digital display, intuitive observation. QUALITY MATERIAL: Car water temp gauge voltmeter made of high quality metal plastic material,strong and durable. PRODUCT SIZE: Vehicle meter, 72mmx65mmx65mm. Specification: Material: Plastic Metal Product Size: 72mmx65mmx65mm Package Includes: 1Set Car Truck Water Temp Gauge Voltmeter Note: Please allow slightly errors due to manual measurement and different monitors. Option2 Description: Stable performance, anti vibration and anti bump. With digital display, blue LED, intuitive observation. Parameter display precision and stability, low power consumption. Suitable for 12V, 24V car vehicles universal. Easy to install. Specification: Working Voltage: 12V-24V Input Voltage: 9V-36V LED Color: Blue Material: Plastic+ Metal Size: Approx.65.5x72mm Line Length: Approx.300cm Sensor Size 1: 21mm 1/2 Sensor Size 2: 17mm 3/8 Sensor Size 3: 16mm(16x1.5) Sensor Size 4: 14mm(14x1.5) Sensor Size 5: 12mm(12x1.5) Sensor Size 6: 10mm 1/8 Package Includes: 1 Piece Gauge 1 Piece Sensor 1 Piece Wire 1 Piece Bracket 1 Piece Double-sided Tape Note: Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm) Please check the size measurement and the picture carefully before making