What frequency is used to transmit data from the probe to the gateway? January 08, 2019 10:00 Updated Follow In Europe, probes communicate at 868 MHz. Probes in North America and Mexico communicate at 915 MHz. Related articles What does the sensor measure? Using the Sensoterra Customer API Introduction to Soil Moisture Science Troubleshooting Guide Multitech Gateway Setup Guide Comments 0 comments Please sign in to leave a comment.