A parcel, a pallet, and a trip you can see
Logistics gets end-to-end visibility from in-vehicle terminals, parcel tags, pallet trackers, and cold-chain monitors. Express, warehouses, and cross-border logistics all need a cellular link that can carry a live position and temperature. SimtoLink modules for this work cover 4G, 5G, NB-IoT, and LTE Cat.1, with an industrial design and UART, SPI, and I2C. The company supports 500+ enterprise customers and has connected more than 10 million logistics devices.
Where the logistics module sits
A parcel, a warehouse, a line-haul truck, and a cold box do not report the same way. The notes below are the usual jobs, and the radio that tends to fit.
Express parcels
A high-value piece carries a tag. NB-IoT or LTE Cat.1 reports where it is, including an alert when it sits too long and a delivery confirmation, which is the visibility the last mile is missing.
Line-haul trucks
A truck's OBD and GPS report the route and the fuel over 4G, which is what a TMS uses to retune dispatch and what an electronic waybill and transport trace sit on.
Cold chain
A refrigerated truck or a cold box sends temperature, humidity, and location together, which is how fresh goods stay in spec and how drug and food rules get a transport trace.
Cross-border moves
Several operators and several bands are what international roaming needs, so a parcel can be followed out of the country for cross-border commerce and a supply chain that ships abroad.
Pallets and totes
A pallet tracker reports over LTE Cat.1, so a pallet pool, shared reuse, and recovery of the asset are one record, and the logistics bill comes down.
What a shipment asks of the module
- Coverage that crosses a border: Cross-border work needs several operators and several bands so international roaming actually holds.
- Low power and a small tag: A parcel tag has to sleep and stay small. PSM and eDRX on NB-IoT are what stretch that battery.
- Temperature and shock in transit: A truck vibrates. −40°C to 85°C is what a warehouse and a road ask for.
- Interfaces the tracker already uses: GPS or BeiDou, a temperature sensor, and MQTT or HTTP, so a WMS or TMS can take the feed.
- From a sample tag to a network lot: The range runs 2G through 5G, with documentation, an SDK, and production supply for logistics-device makers.
Which radio fits a logistics job
How live the report must be, what it costs, and how often it speaks do not line up the same way for a parcel tag and a line-haul truck. The stage, whether the route crosses a border, and cost should decide the module. The rows below are where logistics projects usually start.
| Job | Radio | Why that radio |
|---|---|---|
| Parcel tags, infrequent tracking | NB-IoT | Very low power, a lower bill, an exception alert |
| Pallets, cold boxes | LTE Cat.1 | A middle rate, temperature, humidity, and location, cost in balance |
| Trucks, warehouse AGVs | 4G | A live track, WMS/TMS, bandwidth |
| Cross-border logistics | 4G | Several operators, several bands, international roaming |
How SimtoLink fits a logistics program
For logistics, the modules are industrial designs that hold temperature and shock, with technical support around the clock. NB-IoT is the recommendation for infrequent reports such as parcel tags. LTE Cat.1 fits pallets and cold boxes at a middle rate. 4G is for trucks and warehouses.
A device maker gets the AT command set, the SDK, and sample code with the radio, and one account stays from the requirements note through a prototype and a production lot. As logistics digitizes, that demand keeps growing, and supply is meant to continue after the first network batch.
How a logistics program usually moves
Shippers usually move in this order:
The choice turns on the stage (parcel, vehicle, or cold chain), how live the report must be, cross-border roaming (international lanes need several bands), and cost (module plus data once the count is large). Start with a small pilot and check each stage and the platform link. Parcel tags are usually better on NB-IoT. Trucks and cold chain can use 4G.
A connected shipment is easier to see, loses less cargo, and is easier to dispatch. SimtoLink has supplied modules to express, warehouse, and cold-chain customers.