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At Otacell.se you will find reliable and user-friendly solutions for remote control and monitoring over the mobile network, developed and manufactured in Sweden for maximum operational reliability and durability.
Whether you control the heating in your holiday home, the parking heater in your car, or electrical equipment remotely with our 4G-controlled relays, proper documentation and manuals are the key to easy installation and trouble-free use.
Current OTACELL 4G devices:
OTAC-AG-H02A USER MANUAL (Swedish only)
OTAC-AG-H01C USER MANUAL (Swedish only)
OTAC-LM63T USER MANUAL (Swedish only)
OTAC-LM60T USER MANUAL (Swedish only)
Older 2G (GSM-START) devices that have been discontinued:
Whether you already have a 4G-controlled relay via mobile app, a GSM-START solution for your Webasto or Eberspächer heater, or control other systems via our APP, clear manuals help you to:
Understand the product’s functions and technical specifications
Make correct connections and configure the device properly
Troubleshoot common issues without unnecessary waiting time
Get the most out of features such as temperature monitoring, alarms, and app settings
We have gathered all important resources for our products so that you can quickly find:
✔ Installation guides
Step-by-step instructions for connecting 4G relays, parking heater control (Webasto & Eberspächer), and other devices.
✔ User manuals for APP control
Complete guidance to get started with our GSMS Remote Control APP, how to add devices, manage profiles, and perform settings directly in the app.
✔ Temperature and alarm settings
Instructions on how to use accessories such as temperature sensors and how to configure alarms and regulation via the relay’s inputs/outputs.
✔ Product-specific manuals
Detailed documents for all our products, from 2-channel 4G relays to specialized kits for heater control.
To get the maximum benefit:
Identify your product – Check the article number or model before downloading the manual.
Follow the installation order – Always start with safety procedures and basic wiring.
Use the APP instructions in parallel – For products controlled via mobile app, combine physical installation with the APP settings.
Save the documents locally – Keep the manuals available on your mobile phone or computer when needed.
We continuously update our documents to reflect new features, improved guides, and additional troubleshooting steps so that you always have up-to-date support for both new and older models.