> This page is for version Staging. > For other versions, use one of these documentation indexes: > - Prod (default): https://docs.chrt.com/prod/llms.txt > - Staging: https://docs.chrt.com/staging/llms.txt > - Dev: https://docs.chrt.com/dev/llms.txt > For clean Markdown of any page, append .md to the page URL. > For a complete documentation index, see https://docs.chrt.com/llms.txt. > For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.chrt.com/_mcp/server. # Trackers in the Driver App > Understand tracker registration views and check the organization and cargo link. The **Trackers** tab provides registration views for supported physical tracking devices in the active organization. Registration, attaching a device to cargo and receiving telemetry are separate steps. ## Before you start * Confirm the active organization in **Settings** and that your role permits tracker registration. Driver access alone does not imply Trackers access. * Have a supported physical device or label and the correct identifier. Check [Supported devices](/staging/trackers/supported-devices). * Use a compatible physical phone for NFC labels. Simulator screenshots cannot prove NFC registration. If the phone cannot read NFC tags, **NFC Label** shows **NFC tag reading is unavailable on this device.** * Grant camera permission for camera-based scans. Confirm connectivity before registration. ## Choose the registration method The **Trackers** tab opens on **NFC Label**; use the **NFC Label** and **QR / MAC** switch 1 to scan a code or type an identifier. In **QR / MAC**, **Add Trackers** has **Single**, **Batch** and **Manual** modes 2, and **Single** mode has the **Scan Tracker** button 3. **Trackers to Register** 4 stays empty until you add an identifier. Choose the method for the actual device; a MAC address is not a universal identifier for every tracker family. ![The Trackers tab with QR / MAC selected, with numbers 1 to 4 on the NFC Label and QR / MAC switch, the Single, Batch and Manual modes, the Scan Tracker button and the empty Trackers to Register list.](/_fern-files/_img/4ac0e3072c456461b5ae343d83dbb80e1b6d81c35835b3a45a2feb02c08369e4.webp) *The **Trackers** tab with **QR / MAC** selected. **1** **NFC Label** and **QR / MAC** switch, **2** **Single**, **Batch** and **Manual** modes, **3** **Scan Tracker** button, **4** **Trackers to Register** list.* ### NFC Label The **NFC Label** view is intended for supported Reelables labels and distinguishes single and batch registration. It requires compatible physical hardware: the **NFC Label** tab 1 offers **Scan NFC Label** 2, and a phone that cannot read NFC tags shows **NFC tag reading is unavailable on this device.** 3 Ask your device program owner for the supported label and setup before attempting registration. ![The Trackers tab with NFC Label selected, with numbers 1 to 3 on the NFC Label tab, the disabled Scan NFC Label button and the message that NFC tag reading is unavailable on this device.](/_fern-files/_img/56fe7cff0948d09c7feae5ab49f3140667704cdc2b22912ecd34126a05bf104d.webp) *The **Trackers** tab with **NFC Label** selected on a device without NFC. **1** **NFC Label** tab, **2** **Scan NFC Label** button, **3** the NFC unavailable message.* ### QR / MAC The **QR / MAC** view offers **Single**, **Batch** and **Manual** modes for supported identifiers. Review the device type and organization before using a mode. Ask your device program owner which identifier and setup applies to your tracker. To enter an identifier by hand, choose **Manual**, type the MAC address into the **MAC address** field 1 and tap **+** 2. If the app reformats what you typed, **Will save as** 3 shows the value it will store. ![The Add Trackers card in Manual mode with a MAC address typed, with numbers 1 to 3 on the MAC address field, the add button and the Will save as line.](/_fern-files/_img/056afa3948c8916885fe76e340e03d3dd21909f3e6873f0a56e64eb7c6b632aa.webp) *The **Add Trackers** card in **Manual** mode. **1** **MAC address** field, **2** **+** button, **3** **Will save as** line.* Each identifier then appears under **Trackers to Register** as a row 1 with **Optional details** and a status line; **Ready to register** means the value is valid. Remove a row with **×** 2. Then tap the register button at the bottom of the screen, which shows the count, for example **Register 3 Trackers** 3. ![Three queued trackers under Trackers to Register, with numbers 1 to 3 on a queued tracker row, its remove button and the Register 3 Trackers button.](/_fern-files/_img/1c86f4ee4237f2d9bffecb120e5ab12d5b765cae4c45984c4ba68b6445608e88.webp) ***Trackers to Register** with three identifiers queued, each with **Optional details** and **Ready to register**. **1** queued tracker row, **2** **×** button, **3** **Register 3 Trackers** button.* This guide covers the available registration views. Device-specific activation and registration procedures need validation with the supported hardware. ## Confirm the outcome Check that the identifier was registered under the intended organization in the web app. Ask dispatch to attach the device to the correct cargo/order when needed. Confirm the cargo link separately. A successful registration does not prove the device is transmitting, the cargo is linked or telemetry has arrived. Check device timestamps and the order view before relying on tracking. Device activation, connectivity and reporting behavior depend on its type and setup. ## Offline and device limits Both phone platforms support the tracker feature set, but NFC, camera and OS controls depend on hardware. Do not treat a scan or local list as an offline registration guarantee. If registration fails without connectivity, reconnect and check the saved device before retrying. Hardware and offline replay outcomes need device-specific verification. ## Need help For missing camera/NFC access, review device permission and capability. For a rejected identifier or an existing registration, provide the device type, identifier and error to dispatch or [support](mailto:hi@chrt.com). Avoid repeatedly registering the same device until its current state is checked. See [Trackers overview](/staging/trackers), [Trackers on orders](/staging/trackers/on-orders) and [Settings](/staging/app/settings).