Product · Valve controller

LoRaWAN battery valve controller

LRK 1-2 is a battery-powered smart irrigation controller that fits your existing solenoid valve. No cables, no change to the infrastructure. Managed over Bluetooth on site and over LoRaWAN from the office.

• Features
• Versions
• Off-grid sites
• Specifications
• Mounting
• Sensors

Key features

• Fits the existing valve. Compatible with all standard solenoids. Pipes and sprinklers stay unchanged. See how a solenoid valve works.
• Battery powered. 2 × 9 V batteries. No cables and no mains supply. Battery life lasts for years, depending on reporting frequency.
• Two solenoid outputs. One unit manages two valves or two lines.
• Keeps going without a connection. The program is stored in internal memory and runs until a new task arrives.
• Remote fault detection. Leaks, blockages and valves that fail to close show up in the panel from flow data.
• Password protected. A stolen unit cannot be used elsewhere.
• Outdoor housing. IP67 protection, 7 × 5 × 5 cm.
• Made in Türkiye. Hardware and software are developed locally.

Two versions, by connection

ESTRON BLE

From a phone, over Bluetooth. Connect within 10 m of the valve and upload the program. No internet needed. Works with the iOS and Android app. Suited to small sites and maintenance crews.

ESTRON BLE-LoRa

Adds LoRaWAN to Bluetooth. Valves are managed from the office through the web panel. Range is up to 2 km in the city and 10 km in open terrain. AI decisions reach the controller directly. GSM and NB-IoT connectivity options are available. Recommended for parks, road medians and sites with many valves.

Both versions share the same housing and battery layout. If a BLE unit later needs to join the LoRaWAN network, it is replaced with a BLE-LoRa unit. For parks and medians: park irrigation system for municipalities.

Irrigation control where there is no power or internet

Most valve boxes have no electricity; on a boulevard median, in a cemetery or at the edge of a campus there is no internet either. The controller was designed for this. It runs on 2 × 9 V batteries; no power line is needed. The schedule sits in the controller's memory; it runs on time without internet.

For remote commands one gateway on site is enough; the gateway has power and internet, the valves do not. A valve outside gateway coverage is managed on site over Bluetooth, from a phone. Irrigation does not stop when the internet is down: irrigation keeps running even without internet.

Technical specifications

For battery life and outdoor durability see low battery consumption and field-proof hardware.

Mounting

The unit goes into the valve box, next to the solenoid. The solenoid wires connect to the unit. Batteries go in. The first setup is done from a phone over Bluetooth. Multi-site example: for landscaping companies.

In the BLE-LoRa version the unit registers with the panel through the on-site ATL413LW gateway. After installation, programs are sent from the office.

Mounting needs no digging or cable ducts. The existing irrigation system keeps working.

Sensors and leak detection

Rain, soil moisture, pressure, flow and temperature sensors connect to the unit. The rain sensor postpones watering during rainfall. The soil moisture sensor prevents unnecessary watering.

The flow sensor measures water use. Flow while the valve is closed raises a leak alarm. Lower flow than expected points to a blockage; higher flow points to a broken pipe. Details: catch water leaks without visiting the site.

Together with the software

The unit works on its own. It shows its strength with the landscape irrigation software: AI decisions, map, bulk program delivery, reports and alarms. The whole system is described on the smart irrigation system page.

See the FAQ for common questions or request a quote.