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# Supported Devices

> Tive cellular trackers, the chrt driver app as a phone tracker, and on-board courier (OBC) mode — what each device tracks and where it shows up in chrt.

chrt supports three classes of trackers: **Tive cellular trackers**, the
**chrt driver app** on a phone, and **on-board courier (OBC) mode** trackers
used by hand-carry couriers. This page explains what each one tracks, who
provides the hardware, and where its data shows up in the app.

## Device types at a glance

| Device type                            | What it tracks                                       | Who provides it                                                  | Battery life                                           | Where to view it                                                      |
| -------------------------------------- | ---------------------------------------------------- | ---------------------------------------------------------------- | ------------------------------------------------------ | --------------------------------------------------------------------- |
| Tive **Tag** (T3-D-tag)                | GPS location, temperature, light, shock              | chrt (request via [trackers@chrt.com](mailto:trackers@chrt.com)) | Multi-week (single-use or recharged between shipments) | [Devices](https://chrt.com/tracking/devices) and on the order Map tab |
| Tive **Label** (MTB06-label)           | GPS location, temperature                            | chrt (request via [trackers@chrt.com](mailto:trackers@chrt.com)) | Single-shipment use                                    | [Devices](https://chrt.com/tracking/devices) and on the order Map tab |
| chrt **driver app** (iPhone / Android) | Driver location                                      | Driver's own phone                                               | Depends on phone + plan                                | Order Map tab while the driver is on a task                           |
| **OBC mode** trackers                  | GPS location of the on-board courier across each leg | chrt or a Tive device attached to the OBC's bag                  | Multi-week (Tive) or driver phone                      | Order Map tab on multi-leg + OBC orders                               |

> **Note**
>
> chrt does not sell trackers self-serve. To request Tive devices, email
> [trackers@chrt.com](mailto:trackers@chrt.com) with the type and quantity
> you need. See [chrt.com/trackers](https://chrt.com/trackers) for the
> marketing overview of available hardware.

## 1. View your devices

Open [chrt.com/tracking/devices](https://chrt.com/tracking/devices). The
table shows every device registered to your organization, with columns for
**MAC address**, **Type**, **Last seen**, **Registered**, and current
**Status** (idle, on an active session, or linked to active cargo).

Use the filter chips above the table to narrow by **Type**
(Tag / Label), **Status** (active session, active cargo, inactive,
archived), and **Org scope** (devices owned by your org, shared with you,
or both).

## 2. Tive Tag (T3-D-tag)

The Tive **Tag** is chrt's standard reusable cellular tracker. It reports
**GPS location**, **temperature**, **light**, and **shock**, and runs
multi-week on a charge. Use it for medical, high-value, or cold-chain
freight where you want hardware-level proof of where cargo went and how
it travelled.

* **Reports:** location pings, temperature, light, shock.
* **Battery:** rechargeable; full charge typically lasts a multi-week
  shipment.
* **Use it for:** reusable lanes, long-haul international, OBC bag
  tracking, anywhere you need condition data.

## 3. Tive Label (MTB06-label)

The Tive **Label** is a thinner single-use tracker. It reports **GPS
location** and **temperature** for the duration of one shipment, then is
discarded or returned.

* **Reports:** location pings, temperature.
* **Battery:** non-rechargeable, intended for a single shipment.
* **Use it for:** one-way medical or pharmaceutical shipments, parcel-sized
  cargo, cases where you don't expect the tracker back.

## 4. chrt driver app (phone as a tracker)

When a driver accepts a task in the chrt app on their iPhone or Android,
the app reports their **location** to chrt for as long as the task is
active. This is the default tracker for ground legs on a chrt order — no
hardware required.

* **Reports:** driver location only (no temperature, light, or shock).
* **Battery:** depends on the driver's phone, plan, and background-location
  permission. See [Battery and data](/trackers/battery-data) for what to
  watch.
* **Where to view it:** the order's **Map** tab shows the driver's marker
  alongside any Tive trackers linked to cargo.

See [the app overview](/app/welcome) for install paths and
[Location & battery](/app/location) for how the driver app captures
location.

## 5. OBC mode trackers

On-board courier (OBC) orders are multi-leg shipments where a human
courier hand-carries cargo across multiple flights and ground legs. OBC
mode isn't a separate tracker type — it's a configuration on the order.
You can track an OBC shipment either way:

* **Driver-app tracking.** The OBC carries a phone signed into the chrt
  app, and the app reports location across all legs.
* **Tive on the OBC bag.** A Tive Tag attached to the bag reports location
  and condition independently of the OBC's phone — useful for high-value
  medical OBC freight where you want hardware-level proof.

Both can run on the same order. The order's Map tab shows every active
tracker on the same map.

## How to know it worked

* A Tive device appears in [Devices](https://chrt.com/tracking/devices)
  within seconds of registering its MAC address. The first location ping
  can take **up to about 15 minutes** to appear on the map.
* A driver-app phone appears on the order's Map tab once the driver
  accepts a task and grants location permission.
* An OBC tracker (Tive or phone) appears on the multi-leg order's Map tab
  across every leg.

If a device doesn't appear after 30 minutes, email
[trackers@chrt.com](mailto:trackers@chrt.com).

## Related guides

* [Standalone trackers](/trackers/standalone) — register a Tive device
  and create a session without an order.
* [Trackers on orders](/trackers/on-orders) — link a tracker to cargo on
  a chrt order.
* [Battery and data](/trackers/battery-data) — how each device reports
  battery and what to do when it dies.
* [Integrations](/trackers/integrations) — sync Tive shipments to chrt
  shipments.
* [Tracking concepts](/docs/concepts/tracking) — how chrt models devices,
  sessions, pings, and ETA.