Supported Devices

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)	Multi-week (single-use or recharged between shipments)	Devices and on the order Map tab
Tive Label (MTB06-label)	GPS location, temperature	chrt (request via trackers@chrt.com)	Single-shipment use	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

chrt does not sell trackers self-serve. To request Tive devices, email trackers@chrt.com with the type and quantity you need. See chrt.com/trackers for the marketing overview of available hardware.

1. View your devices

Open 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 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 for install paths and Location & battery 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 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.

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