Product Name: Three-in-one voltage clock

product Size: 7.8*11.5 * 1.5CM

single Weight: 120g

packing size: 46*37 * 37CM/100pcs

material: new ABS

applicable vehicle model: 12v full series car

features: with temperature voltage clock

small appearance with large LCD screen makes digital look more convenient;

time, voltage (9V-30V) temperature (-20-70 degrees Celsius)

you can set three modes: Individual time display, individual voltage display, individual temperature display, or cyclic display. The mode is automatically saved after the car is turned off;

built-in rechargeable capacitor (not battery). It saves the trouble of changing button battery. After the car is turned off, the battery can last for one month. Try it again for 1 minute to fill the battery;

significance of product voltage value: when the car is powered on but not started, it is the battery voltage. The normal value is 12.2-12.8. If it is lower than 11.6, attention should be paid to turning off the electrical appliances on the car as soon as possible and starting the engine to charge immediately, connect a professional battery inspection instrument to test the capacitance. If the value is less than 10, it may not start.
After the car is started, it is the generator voltage. The normal value is 13.4-14.8. If it is lower than 13.4, the battery cannot be charged. Check the abnormal load of the generator belt and vehicle electrical appliances, higher than 14.8 means that the power generation will damage the battery and the electrical appliances on the car, and check the generator regulator.