LoRa Accessories & Sensors

Solem Humidity Sensor

The HM1500 LF is a high-reliability capacitive air humidity sensor delivering precise measurements across 0–100% relative humidity. Calibrated to ±2% RH at 55% RH, it features a linear voltage output, fast response time (~10 seconds), and resistance to water immersion. Designed for long-term stability with minimal temperature dependence, it connects to the LR-MS sensor module and integrates seamlessly into the Solem LoRa ecosystem to help you adjust irrigation schedules and conserve water.

Solem Level Sensor

Hydrostatic level sensor for continuous water-level monitoring in tanks; up to 10m deep. Supplied with 6m or 10m of heavy-duty cable, it offers accuracy of ±2–3 cm and is suitable for drinking water. Paired with an LR-MS module, it transmits data via LoRa and triggers alerts when levels fall outside your defined thresholds. Ideal for small to medium-sized installations.

Solem LoRa MV or Pump Control

Waterproof, battery-powered LoRa & Bluetooth master valve/pump controller operating from a single 9 V battery (approx. 1‑year life). Controls a 9 V solenoid valve or 230 V pump via the optional relay. Features 1 sensor input for water flow or pressure monitoring. Syncs automatically with all Solem controllers on the same water network via a LoRa gateway, giving you full remote management and pump optimisation through the MySOLEM app/web dashboard. IP68 rated for outdoor installation.

NB. If using with a 230v pump requires the Solem 9v Pump Relay, in conjunction with a suitable 230v pump control panel.

Solem LoRa Sensor Module

Solem LR-MS range of LoRa based sensor modules offer a compact and fully waterproof (IP68) sensor interface. Available with 1 or 4 sensors inputs and compatible with analogue, digital pulse or dry-contact sensors- perfeect for humidity, rain , flow or wind. Powered by a single standard v battery, it transmits readings wirelessly to your gateway and the MySOLEM platform for threshold based alerts and irrigation automation.

Solem Moisture Sensors

Solem offer a selection of moisture sensors that are compatible with the LR-MS range of sensor modules; these include capacitive, dielectric- type and granular matrix-based soil moistrue sensors.

Specific details can be found on the individual product pages. If you require assistance contact a member of the LWS team.

Solem Pressure Switch

Reed‑switch pressure sensor providing a simple on/off signal at your set pressure threshold. Operated between 0-10 bar pressure. Monitors line pressure to detect anomalies such as bursts, blockages, or pump failure. Compatible with LR‑MS, LR‑IP, LR‑IS, and LR‑AG controllers. Sends instant alerts to your phone or email via MySOLEM, helping you protect your irrigation infrastructure and minimise water waste.

Solem Pressure Transducer

Continuous analogue pressure transmitter delivering a proportional signal across the full 0–16 bar range. Enables real‑time monitoring of operating pressure, dynamic flow analysis, and precise system diagnostics. Integrates with LR‑MS modules to log trends and trigger automated responses — such as pump shutdown — when pressure deviates from normal operating bands.

Solem 9V Pump Relay

Pulse‑operated power relay bridging 9 V battery‑powered LoRa controllers to 230 V single‑phase pumps and equipment. Rated for up to 16 A continuous load. Receives commands wirelessly from LR‑PM or compatible units and safely switches high‑voltage circuits at a distance. Fully enclosed, wire‑connected design with up to 30 m installation distance. Enables full remote pump control from battery‑powered systems.

NB. Used with the Solem LR-PM control relay.

Solem Davis Rain Gauge

Professional‑grade tipping‑bucket rain sensor with AeroCone collector for enhanced accuracy and reduced wind error. Self‑emptying, clog‑resistant mechanism with 0.2 mm resolution and measurement accuracy within 4%. Delivers reliable daily and cumulative rainfall data. Connects to LR‑MS modules to automatically pause or suspend irrigation during and after precipitation — a key water‑saving feature.

Solem Temperature Sensor

Precision PT100 RTD temperature probe for accurate air or soil temperature monitoring. Delivers stable, repeatable readings across a wide operating range. Plugs directly into the dedicated temperature channel of LR‑MS‑4 modules, enabling temperature‑driven rules such as frost protection or seasonal scheduling adjustments. Essential for weather‑smart irrigation optimisation.

Solem Wind Sensor

Robust cup anemometer measuring wind speeds from 2 to 200 km/h with ±1 km/h accuracy. Heavy‑duty bearings for long life in exposed locations. Provides output compatible with LR‑MS modules. Automatically detects high‑wind conditions to shut off sprinklers and prevent drift — saving water and protecting nearby landscapes.