A radio that stays up in the weather
Outdoor equipment — streetlights, manhole covers, weather stations, outdoor screens, chargers — sits in the open, in heat, cold, sun, rain, and lightning. That harsh setting needs an industrial temperature range and a module that is dust- and water-tight if the link is going to hold around the clock. SimtoLink modules for this work cover 4G, 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 outdoor devices.
Where the outdoor module sits
A lamp, a manhole cover, a weather station, and a charger do not want the same power budget. The notes below are the usual jobs, and the radio that tends to fit.
Streetlights, one lamp at a time
Single-lamp control and light-level monitoring go up over NB-IoT or 4G, so lighting on demand, a fault alert, and the energy total share one link, and the walk to a failed lamp gets shorter.
Manhole covers that move
Tilt and displacement on a cover report over low-power NB-IoT, which is the theft alert and the municipal safety record.
Weather stations
Temperature, humidity, wind, and rainfall go up as weather data over 4G, which feeds a forecast and a hazard warning for agriculture and transport.
Outdoor LED screens
Content is pushed remotely and status comes back over 4G, so an update, playback monitoring, and the ad operation share one link.
Outdoor chargers
A charger uses 4G for remote watch, payment, and a fault alert, and it has to stay online around the clock.
Solar power, and a small budget
A solar-powered site wants an NB-IoT module with a very small draw. PSM and eDRX are what stretch the battery where there is no mains.
What the weather asks of the module
- Coverage away from town: A remote outdoor site needs several operators and several bands so roaming and a handoff still work.
- Temperature from north to south: −40°C to 85°C covers extreme climates, sun, and rain.
- Dust and water: IP65 and above is what an unsheltered site in rain or snow asks for.
- Lightning and ESD: An outdoor board gets struck. It needs ESD protection and a lightning design if it is going to stay in service.
- A small power budget, often solar: A lamp or a manhole cover often has no mains. PSM and eDRX, plus solar, are what stretch that life.
Which radio fits an outdoor job
Power, bandwidth, and cost do not line up the same way for a manhole cover and a screen. Where it sits, how it is powered, and how much data moves should decide the module. The rows below are where outdoor projects usually start.
| Job | Radio | Why that radio |
|---|---|---|
| Streetlights | NB-IoT 4G | Single-lamp control, light level, lighting on demand, low power or bandwidth |
| Manhole covers | NB-IoT | Very low power, displacement, solar, municipal safety |
| Weather stations, screens | 4G | Bandwidth, weather data, a content push, playback monitoring |
| Chargers | 4G LTE Cat.1 | Remote watch, payment, online around the clock, the industrial temperature range |
How SimtoLink fits an outdoor program
For outdoor gear, the modules are industrial designs that hold temperature and shock, with technical support around the clock. NB-IoT is the recommendation for streetlights and manhole covers that report infrequently and draw little power. 4G is for weather stations, screens, and chargers.
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 cities put more equipment outside, that demand keeps growing, and supply is meant to continue after the first street batch.
How an outdoor program usually moves
Outdoor projects usually move in this order:
The choice turns on temperature (−40°C to 85°C), dust and water (IP65 and above), lightning and static (an outdoor site gets struck), and power (solar wants a small draw). Start with one point and check whether the module still holds in that weather. Outdoor devices need the industrial temperature range.
Heat, cold, sun, and rain are the job. An industrial module is what keeps the link up through them. SimtoLink has supplied modules to municipal, energy, and transport customers.