Metering hardware built for retrofits

Every node is wireless, battery-friendly, and designed to sit next to an existing meter without rewiring the building.

The devices in the field

Pulse counter node

Clips onto a standard pulse-output meter and reports counted impulses over the air. Each node carries a hardware-burned serial number, so it never needs manual ID provisioning on install.

Multi-channel nodes

One controller can read multiple metering lines simultaneously, cutting hardware count in multi-meter apartments and utility rooms.

LoRa mesh nodes & gateway

Nodes run a FreeRTOS firmware build and talk over the regional 868/915 MHz LoRa band, self-organizing into a mesh so a single gateway covers a whole building or village without line-of-sight to every node.

Third-party meter integration

Meters that speak a different protocol are supported through dedicated data handlers, so a mixed hardware fleet still reports into one system.

From an impulse to a stored reading

Step 1The counter node detects a pulse from the meter and increments its local count.
Step 2The node pushes readings over MQTT on a per-device, per-channel topic to the gateway.
Step 3The subscriber service picks up the message, validates it against the last known value, and persists it. It drops any reading lower than the current value to protect data integrity.
Step 4The node model records liters per impulse, so raw pulses convert to real consumption units automatically.

Built to run unattended for years

Low-power design

Metering nodes are engineered against a sub-0.15 mA power budget, so a small battery lasts years between replacements.

Battery health monitoring

Each node reports its battery voltage over MQTT. The platform logs it automatically and raises an event before a battery actually dies.

Encrypted end to end

Every LoRa payload is encrypted node-to-gateway with a Speck block cipher, and MQTT traffic from gateway to cloud can run over SSL or PSK, alongside HTTPS for the dashboard and API.

No reading lost in transit

Each node buffers its counts in a wear-levelled EEPROM ring buffer, so a power cut or reset never loses data. The gateway queues messages on its Mosquitto MQTT broker and retries automatically if the connection drops.

Pick the connectivity that matches the building

Wi-Fi

Private housing and cottage communities with existing home networks.

GSM / GPRS

The private sector and standalone buildings without local infrastructure.

LoRaWAN

Centralized installation across an entire apartment building or village.

Node configuration, such as the liters-per-impulse setting, is pushed to the device remotely over MQTT rather than requiring a technician to reconnect it.

The actual boards

Pulse counter node

Built around an AVR microcontroller with a socket for the LoRa radio module, exported straight from the manufacturing Gerber files.

LoRa / GSM gateway

ESP12F Wi-Fi module plus the 868/915 MHz radio front-end that relays node readings to the cloud.

Since 2020, this hardware and the platform behind it have gone through well over 1,000 hours of tracked engineering work — firmware, mesh networking, and backend.

Need a hardware spec for your building?

Tell us the meter types and building layout, and we will put together the right device set.

Talk to engineering