GSL doo designs, manufactures, implements and maintains electronic devices and IoT systems that make operations easier, safer and cheaper to run. Full cycle, in-house, from Novi Sad, Serbia.
Founded in Novi Sad
R&D, production & software
On-site demo & training
Systems that monitor, control and report by themselves — so your people stop doing it by hand and start acting on the data.
Access control, monitoring and instant alerting built for real industrial sites and utilities, not for office demos.
Innovative technology that cuts electricity consumption and minimizes the long-term maintenance cost of the system.
Founded in 2021 in Novi Sad, GSL doo covers design, manufacturing and sale of electronic components, microcontroller programming, and custom software for computers and mobile devices. We are flexible enough for a single custom device and structured enough for a city-wide deployment.
Our goal is to develop innovations that reduce environmental pollution and make everyday operations simpler for the people who run them. Free training and a demonstration at your own location are part of every project.
Schematic design, PCB layout, prototyping and series production of custom electronic devices, controllers and sensor modules.
Microcontroller firmware, desktop, web and mobile applications, plus the monitoring and management platforms that sit on top of our hardware.
Testing and validation of pre-insulated heating pipe sections, including moisture detection and localization of the fault along the line.
Wireless mesh control for street and industrial lighting. Dim, schedule and monitor each luminaire individually and cut energy use without losing light where it actually matters.
Continuous monitoring of industrial processes and infrastructure, with live dashboards, historical trends and automatic alarms when a value leaves its allowed range.
Access control for gates, doors and restricted industrial zones, with user rights, complete entry logs and remote administration.
Controller for automated gates and barriers with remote and GSM operation, user list management and a full record of every opening.
Detects moisture inside pre-insulated district-heating pipes and localizes the fault along the route - before it turns into an excavation.
A compact device that turns any contact or sensor input into an instant notification – the fastest way to put an alarm on equipment that has none.
Also available as standalone modules: GSM 4G LTE Controller, G4R2 4G communication module, wireless inertial sensors and their charging stations.
T
Utilities, industry and technology companies that already run our systems.















Tekelijina 28, 21000 Novi Sad, Serbia
GSL doo · Development, manufacturing, implementation and maintenance of electronic devices and systems