LEO network
SmartLogger Satellite.
Data collector with satellite transmission, for places with no terrestrial infrastructure.


LEO networkSL-21
SmartLogger SL-21 is an industrial data logger with UHF satellite connectivity, built for remote applications that demand reliability, autonomy and global reach, with no terrestrial infrastructure.
Transmitting on 399.9 to 400.05 MHz and receiving on 400.15 to 401 MHz, the device uses direct-to-orbit IoT technology for continuous monitoring anywhere in the world.
- Transmission
- Satellite
- Digital interfaces
- 2 pulse/dry contact
- Analog interfaces
- 2 × 4–20 mA
- Frequency
- UHF band
- Antenna
- SMA connector
- Power supply
- Internal 3.0 to 3.6 VDC battery
SmartLogger line
Explore the other lines.

Cellular
Multichannel data loggers for continuous monitoring of remote applications, with NB-IoT / CAT-M technology and data transmission over the cellular network.
- SL-01
- SL-02
- SL-03
- SL-04

LoRa
Multichannel data loggers for continuous monitoring of remote applications, with LoRa technology and data transmission over public or private LoRaWAN networks.
- SL-11
- SL-12
- SL-13
- SL-14
Bring more intelligence to your project.
Talk to our team of specialists and find out how SmartLogger can automate data collection, reduce operational risk and speed up decisions in your project.