Please note! the sensors sold here are only suitable for the use of Develuck/Jansite/Srnubi/Vtopek brand products, not suitable for other brand products. After purchasing, please be sure to note what type of monitor needs to be adapted to use, or contact customer service for consultation. Avoid incompatibility and not working properly after purchase. TYD9/TYD10 model external sensor pairing steps: first remove all 4 external sensors, and then pair them in the order shown below. 1; Press and hold the right button as shown in Figure 1, wait for Figure 2 to appear on the screen, and then enter the pairing mode. 2; Then install the sensor A to the left front wheel, wait for the tire pressure data to be displayed on the screen, it proves that it has been paired and connected (Figure 4) 3; Click the right button, and then enter the next tire matching mode 4; Then install the sensor B to the right front wheel and wait for the tire pressure data to be displayed on the screen to prove that it has been paired and connected (Figure 8). 5; Click the right button, and then enter the next tire matching mode 6;Then install sensor C on the left rear wheel and wait for the tire pressure data to be displayed on the screen to prove that it is paired and connected (Figure 12). 7; Click the right button, and then enter the next tire matching mode 6; Then install the sensor D on the right rear wheel and wait for the tire pressure data to be displayed on the screen to prove that it has been paired and connected (Figure 12). At this point, all pairing and connection are successful, OK. ; Internal sensor pairing method: Please note; (internal sensors) need to release the air pressure of all four tires 1;The first step is to inflate all 4 tires of the car until the tires are flat. The tire should be deflated to a dry state: correct Tire full state: error (pictured above) 2; also enter the setting mode and perform pairing connection with the corresponding sensor 3;Then inflate the tire, the flashing bar on the screen will change to tire pressure data, which means that the sensor has been successfully connected to the display. Then proceed in order, filling one tire, and then pairing one until all tires are paired. TY588/TY618 model external sensor pairing steps: first remove all the 4 external sensors, and then pair them in the order shown below. Dear friends, if you have purchased a kit with 8 sensors for the TY588 model, it is used for the Spring Festival and winter tires. When we need to replace a new set of tires, then we need to match all the sensors one by one, because The monitor can only display and remember a set of tire sensor data and matching items. Right button: Power button: used to turn the power on and off Left button : Pairing button : used to pair the sensor and display Press 8 times to turn on pairing mode After the first tire is paired, press the left pairing button to switch to the second tire for pairing After the second tire is paired, press the left pairing button to switch to the third tire for pairing After the third tire is paired, press the left pairing button to switch to the fourth tire for pairing When all 4 tires are matched, press the confirmation button in the middle to confirm. The above is the process of pairing the first set of sensors. TY588/TY618 model built-in sensor pairing steps: first release all the air pressures of the 4 tires, and then pair them according to the order shown in the figure below. The first step is to inflate all 4 tires of the car until the tires are flat. The tire should be deflated to a dry state: correct Tire full state: error Step 2: Start pairing the first tire (front left wheel). Inflate the first tire and pair the display with the sensor at the same time. Start to pump up the tires and pair them at the same time