TOP QUALITY MATERIALS: The shell of the TPMS Relearn Tool is made of ABS plastic, solid and durable, effective against dust and splashing water drops. Wear-resistant, easy to use for a long time and protect the internal electronic components. Responsive and powerful performance, can activate the tire pressure sensor quickly and accurately within 1-2 minutes. EASY TO USE: Make sure your vehicle is in learning mode and follow the maintenance procedures. Place the tool firmly against the tire sidewall, near the valve stem. While holding the tool against the tire sidewall, press the learn button. (Note: Make sure the battery is in good condition and the antenna is in the correct position when using). WIDE APPLICATIONS: Our activation tool is universal for most cars on the market, such as sedan, SUV, pickup truck, etc., not for large trucks. Please check the specifications of the reset tool before you buy to make sure it fits your vehicle. (Different vehicles may take different amounts of time to reset all tire sensors after rotation.) DIMENSIONS: OEC-T5 specifications, EL-50448 measures approximately 6.1 x 2.4 x 1.4 inches and is comfortable to hold. It uses a 9V battery ( NOT INCLUDED ) and has an operating temperature of -20~80°C. With it, individuals can easily complete the relearning of the vehicle pressure sensor, which can greatly save time and money on trips to the auto store. FUNCTIONS: This is a must-have learning tool for replacing tire pressure sensors, removing tire pressure alarms or replacing tires. With a powerful activation reset function, quickly and easily reset your tire pressure sensor to keep your vehicle's tire pressure monitoring system operating optimally.Manufacturer: FLYING_WE Model Number: EL-50448-uk Package Quantity: 1 Part Number: EL-50448-ukSpecifications: Material: ABS Color: Orange + Black Size: 6.1 x 2.4 x 1.4 Inches Package Include: 1 x Relearn Tool for Auto Tire Pressure Monitor Sensor How to use EL-50448? 1. Need 1 piece 9V battery. 2. Enter to car TPMS leaning mode the car horn will beep. 3. Start from the left front tire, make the EL-50448 antenna up against the tire sidewall around the valve core position. Press the start switch, EL-50448 starts to read tire pressure sensor information. When the horn beeps(finished),the turn signal will light and show the next tire position. 4. Follow this order to test all tires: Left front, Right front, Right rear, Left rear. 5. After all sensors have been reseted, the car horn will beep again, the TPMS releam is finished. How to enter to car TPMS leaning mode? 1. Turn on the ignition, make the gear in P position. 2. Use cruise function, choose TPMS leaning mode in the dashboard settings. 3. The car horn will beep twice and the TPMS indicator flashes, then the learning mode has been successfully entered. Notice: 1. When use EL-50448, please operate it in correct position and angle. 2. Please make sure the 9V battery is with enough power.