# Data loggers and cargo tracking devices with installed lithium batteries — Postal shipping restrictions by item category For Data loggers and cargo tracking devices with installed lithium batteries, carrier is IATA (air cargo); restriction type is allowed; scope is attached to or placed in packages, overpacks or unit load devices; conditions is Not subject to the Regulations when in use during transport, lithium-ion not exceeding 20 Wh, lithium metal content not exceeding 1 g, and the devices cannot generate a dangerous evolution of heat, recorded from its source on 2026-08-10. - **Item category:** Data loggers and cargo tracking devices with installed lithium batteries _(verified: appears in the quote below)_ - **Carrier:** IATA (air cargo) _(our reading, not quoted from the source)_ - **Restriction type:** allowed _(our reading, not quoted from the source)_ - **Scope:** attached to or placed in packages, overpacks or unit load devices _(our reading, not quoted from the source)_ - **Conditions:** Not subject to the Regulations when in use during transport, lithium-ion not exceeding 20 Wh, lithium metal content not exceeding 1 g, and the devices cannot generate a dangerous evolution of heat. _(verified: appears in the quote below)_ ## What the source says > Data loggers and cargo tracking devices with installed lithium batteries, attached to or placed in packages, overpacks or unit load devices are not subject to any provisions of these Regulations provided the following conditions are met: ## Source - https://www.iata.org/contentassets/05e6d8742b0047259bf3a700bc9d42b9/lithium-battery-guidance-document.pdf Last verified: 2026-08-10. Review by: 2027-08-10. Part of [Postal shipping restrictions by item category](https://referencesource.org/shipping-restrictions-by-class/).