Sigfox 0G Sensors & Trackers — Low-Power IoT

Ultra-low power IoT sensors with 5–10 year battery life for asset tracking and monitoring.

Sigfox is a global IoT network that enables ultra-low power sensors to transmit small data messages without WiFi, Bluetooth or cellular SIM cards. Sigfox devices are incredibly simple — no configuration, no pairing, no gateway to install. Just activate the device and it connects to the Sigfox network automatically. Battery life is typically 5–10 years. Ideal for simple use cases like asset tracking, leak detection, temperature monitoring and door/window sensing where you need long battery life and low cost.

Key features

• 5–10 Year Battery Life. Ultra-low power protocol. Sensors last years without battery replacement or charging.
• No Gateway Required. Sigfox operates on a global public network. No base station or gateway to install — devices just work.
• Global Coverage. Sigfox network covers 75+ countries. Ideal for assets that cross borders.
• Low Cost. Device costs from £15 and annual subscriptions from £1/year per device. Extremely cost-effective at scale.
• Simple Deployment. No configuration needed. Activate online and the device starts transmitting data immediately.
• Small Form Factor. Sensors as small as a coin cell. Easy to embed in assets, packaging and equipment.

How does the Sigfox network work?

Sigfox operates on a dedicated low-frequency radio network across the UK and 75+ countries. Unlike mobile networks, it's designed purely for tiny data messages — think sensor readings, not photos or video. Your device transmits a short burst of data that's picked up by nearby Sigfox base stations, then forwarded to your online dashboard or app. There's no SIM card to insert, no WiFi password to enter, and no gateway to install at your site.

Coverage is excellent in most UK towns and cities, with improving rural reach. Check the Sigfox coverage map for your postcode before ordering. Because messages are so small and infrequent, the network can handle millions of devices without congestion. Each device can send up to 140 messages per day — more than enough for hourly temperature checks, daily GPS updates or instant door-open alerts.

Frequently asked questions

How is Sigfox different from LoRaWAN?

Sigfox uses a public network like mobile phones — no gateway needed. LoRaWAN requires you to install your own gateway, but offers more flexibility for larger data volumes.

What data can Sigfox transmit?

Sigfox sends up to 140 short messages per day — perfect for sensor readings, GPS locations and status updates. It's not suitable for video or large files.

Is Sigfox available in the UK?

Yes, Sigfox has nationwide UK coverage. You can check the coverage map online to confirm signal strength at your specific location.

How long do Sigfox device batteries last?

Most Sigfox sensors run for 5–10 years on a single battery. The exact lifespan depends on how often the device sends data and the battery size.

Do I need a subscription for each device?

Yes, each device needs an annual subscription — typically around £1–£10 per year depending on message volume. There are no setup fees or data charges.

Can I track assets moving between countries?

Yes, Sigfox works in over 75 countries without changing SIM cards or settings. Your device will automatically connect to the local Sigfox network wherever it travels.

What happens if a device goes out of coverage?

The device will store the message and retry transmission when it returns to coverage. Most devices can buffer several readings before running out of memory.