Gophr Soil Moisture Probe
From $100.00
Capacitive soil moisture probe with sensing at three depths (shallow, mid, deep). Solar-powered with deep sleep for extended battery life. Two versions to fit any setup: Home Assistant WiFi ($100) for local control via ESPHome, and Cellular ($150) for remote locations beyond WiFi range.
Choose Your Version
Home Assistant
ESPHome over WiFi. Local control via HA Add-on for automated watering decisions.
Cellular
Built-in cellular modem for remote locations beyond WiFi range.
Specifications
| Sensing | 3 depths — shallow, mid, and deep soil moisture |
| Power | Rechargeable battery with built-in solar panel |
| Battery Life | Extended — deep sleep between readings |
| Home Assistant (WiFi) | ESPHome over WiFi, local control via HA Add-on — $100 |
| Cellular | Cellular modem to Flux Cloud, for remote locations — $150 |
| Updates | Over-the-air (OTA) |
| Firmware | ESPHome, v1.4.5 |
Features
3-Depth Sensing
Measure soil moisture at shallow, mid, and deep levels for a complete picture of your soil profile.
Solar Charging
Built-in solar panel keeps the battery topped up for long-term outdoor deployment.
Deep Sleep
Wakes periodically to take readings, then returns to deep sleep to conserve battery.
HA Add-on Integration
Feeds moisture data to the Flux Home Assistant Add-on for moisture-based watering decisions.
WiFi or Cellular
WiFi version for areas with coverage. Cellular version for remote locations far from the controller — no WiFi needed.
Battery Monitoring
Real-time battery level and charging status reported to Home Assistant.
Smart Watering Integration
How Gophr works with the Home Assistant Add-on for automated watering decisions.
Gophr Reads Soil
The probe wakes from deep sleep and measures moisture at three depths, then transmits the data over your chosen protocol.
Add-on Processes Data
The Flux Home Assistant Add-on receives moisture readings and compares them against your configured thresholds.
Controller Waters
If moisture is below threshold, the Add-on triggers the Flux Irrigation Controller to water the appropriate zones.