IsurLog

The datalogger that goes where cables can't

IsurLog records any parameter you connect to it, anywhere, battery-powered and cable-free, and sends the data to the cloud so you can view it, analyze it and receive instant alarms. We design and build it at Isurki, from the board to the firmware, so it adapts to every installation and doesn't depend on third parties.

4 years

maximum battery autonomy

depending on battery type and configuration

4 networks

NB-IoT, LoRa, DECT NR+ or satellite

you choose each unit's module

Sensors

4-20 mA, Modbus RS-485, PT100, I2C and digital

with internal temperature and humidity sensor

100 % in-house

board, firmware and platform

designed and built at Isurki

Features

Everything you need in a single device

Remote communications

Integrates wireless communications over terrestrial (NB-IoT), satellite (NB-IoT-NTN) and proprietary (LoRa) data networks.

01 / 09 · use the mouse wheel or the arrow keys

Connectivity

The same board, the network you choose

Every site is different. That's why the IsurLog board supports several communication modules, and each unit is fitted with the one that best suits its location: NB-IoT, LoRa, DECT NR+ or satellite.

NB-IoT

Mobile network, subscription

Wherever there is mobile coverage it works without deploying your own infrastructure.

LoRa / LoRaWAN

Your own free network

With many points in one area, a single gateway serves them all without depending on an operator.

DECT NR+

Free network

The first non-cellular 5G standard, over free spectrum and with no data contract.

NB-IoT-NTN satellite

No terrestrial coverage

For remote, forest or coastal sites that no network reaches.

Bluetooth and WiFi

Local connectivity

Nearby setup from your phone, and WiFi when the site already has a network.

Not sure which one to choose? Read our IoT connectivity comparison guide (in Spanish).

Hardware

Technical specifications

Built-in I/O for external sensors and detectors

4×

4-20 mA

Active/passive inputs, with a self-resetting protection fuse.

1×

RS-485

Up to 32 sensors, plus a QWIIC connector for I2C sensors.

1×

PT100

2, 3 or 4-wire sensors.

1×

Digital status/count

Voltage-free contact input.

3×

SSR relay

Solid-state outputs: 1 × 2 A + 2 × 0.4 A.

3×

GPIO

Configurable as inputs or outputs.

Sensor power supply

9-24 V / 1 A, software-adjustable, plus 5 V / 0.5 A.

I/O expansion module

Modbus RTU

4×

4-20 mA

Analog inputs, active or passive loops.

4×

Digital

2 status digital inputs + 2 counting digital inputs.

Valves

On/off and proportional

Control of automatic hydraulic valves: pressure and flow regulators with latch solenoid valves.

T / RH

Internal

Internal temperature and relative humidity measurement.

How it works

From sensor to decision, in three steps

1

Measure

Any quantity you connect: 4-20 mA sensors, Modbus RS-485, PT100 or contacts, plus the status of other field equipment.

2

Transmit

Sends the data through the communication module chosen for that unit, with no time windows: always listening.

3

Manage

Cloud history, alarms by email, SMS and Telegram, and remote management of the whole fleet from IsurDash.

All the data goes to IsurDash, our cloud platform for managing the entire fleet of installed units.

Success stories

IsurLog working on real projects

Legionella control network in hot water systems with IsurLog

Healthcare

Osakidetza · Donostia University Hospital

Legionella control in hot water networks

2 LoRa gateways and 36 IsurLog nodes measure temperature and flow at the critical points of 5 buildings and act on the thermostatic valves.

LoRa network with one gateway per health center and temperature at every storage point, with an immediate alert for any risk.

Radar level sensor and IsurLog over NB-IoT to monitor tides and wave agitation in ports and estuaries, with cloud data in IsurDash.

Abstracted flows, pressure regulated to demand and adaptive irrigation per plot with the ISURDROP kit and LoRaWAN.

See the case

Manufacturing

Our own design and manufacturing

At Isurki we control every phase of the process, from design to final installation. Our board design is entirely our own. Once manufactured with their components soldered, we load the firmware at our own facilities — also developed by our team — bringing each device to life.

We also design and manufacture, with our own 3D printers, the enclosures that protect the boards, adapting them to each installation environment. We complete the ecosystem with custom accessories, such as solar panels that recharge our devices' batteries and guarantee their autonomy at any location. This total control over design and manufacturing lets us offer quality, reliability and a level of customization that doesn't depend on third parties.

Process

From design to installation

Our process combines technical analysis, in-house manufacturing and continuous improvement to deliver reliable solutions. Every stage is designed to guarantee robustness, adaptability and maximum confidence in every installed device.

01

Analysis and design

We analyze the possible requirements of all kinds of clients and design a robust and adaptable solution, capable of responding to the needs of any environment.

02

Manufacturing and assembly

We manufacture and assemble each board, load the corresponding firmware and register the device on the IsurDash platform, ready to start working.

03

Testing and feedback

We are in a continuous improvement process, running constant tests and adapting the analysis and design based on our clients' feedback.

Downloads

Documentation and resources

IsurLog WikiFull documentation, guides and technical support (in Spanish)Open ISURLOG DatasheetTechnical characteristics and options for ISURLOGDownload ISURPOWER User ManualTechnical characteristics and options for ISURPOWER (PDF in Spanish)Download Easy-Wiring Quick Connection GuideSimple field wiring overview (PDF in Spanish)Download

Shall we talk about your project?

Tell us what you need to measure and where, and we'll help you choose the IsurLog configuration that fits best.

Contact us Datasheet