External Tire Pressure Monitor User Manual

Installation Instruction

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Thank you for purchasing the product. Before use, please follow the installation instruction as below:

Install the Four Tire Pressure Sensors

Follow the steps below for each wheel. The arrows shown in the images indicate the actual rotation direction for tightening and loosening.

Step 1: Remove the Original Valve Cap

Unscrew and remove the original valve cap from the tire valve stem. Keep it in a safe place in case you need it later.

Step 2: Install the Lock Nut

Before installing the sensor, screw the lock nut onto the valve stem first.

Turn it clockwise until it sits loosely against the valve base. Do not fully tighten it yet.

Step 3: Install the Sensor

Screw the tire pressure sensor onto the valve stem clockwise by hand.

Continue tightening until the sensor is fully seated and no air leakage is heard.

Tip: If you hear air escaping, remove the sensor and reinstall it firmly.

Step 4: Lock the Sensor in Place

Using the provided wrench, turn the lock nut counter-clockwise toward the sensor until it presses firmly against the bottom of the sensor.

This step prevents the sensor from loosening due to vibration while driving.

Step 5: Repeat for All Wheels

Repeat Steps 1–4 for the remaining three wheels until all four sensors are installed.

【AI 图解: AC-UTP1 sensor installation steps, showing how to remove the valve cap, place the lock nut, screw the TPMS sensor onto the valve stem, and tighten the nut—then repeat the same process for all four wheels.】

Install USB receiver box

Install TPMS app

1. First, download TPMS app through the link: https://atoto-usa.oss-us-west-1.aliyuncs.com//2022/FILE_UPLOAD_URL_1/67037359/app-release.apk or email support@myatoto.com to get the app.
2. Copy the app file into a micro SD card or a U disk.
3. Insert the U disk to the External Storage port or the SD card to the SD card port on the head unit, then install TPMS APP to the head unit and it's ready to use.

Basic specification