The CL 520 V4 is an GSM-based alarm transmitter with diverse applications. It is used amongst other things as an burglar alarm, for operations monitoring and remote control. It is ideal for the surveillance of objects without a land line or existing alarm system. Such objects could be holiday homes, houses, boats, caravans, motorhomes, containers, maintenance vehicles, etc.
- Sends alarms via texts(up to 160 characters)
- Controlled via mobile phone
- 5 alarm zones
- 2 relay outputs, controlled via texts or events
- Temperature sensors with monitoring and control features
- Prepared for external battery back-up
- Alarm in event of power failure (with battery back-up)
- Easy configuration via PC-programme and partially via texts
- Status message via text
- Slim aluminium casing
CL520 V4 Unit
2 temperature sensors
230V Power Supply - 24VDC
GPRS/Dial Up Data (CSD)
Signal Strength Indication
Text At Power Loss
Text At Low Battery
Battery Backup (accessory)
External Lead Acid
Remote Activated Output
Input Power Rating
Making 24V 1A
Current consumption nom
Temperature Rating (c)
-40 - +85
Dimensions LxWxH (mm)
Number of alarm texts per input
Sends Both Alarm And Reset
There are several products in our range for logging, measuring controlling and monitoring the temperature. These products makes it easy to get a text message if the temperature is above or below the set limits. Some products will also work as remote controlled thermostats and control heating or cooling in your facililty.
Refridgerated / Frozen / Temperature critical transports
With an GSM-based alarm transmitter it's easy to increase the operational safety, an alarm is sent as soon as anything goes wrong. To retrofit facilities with our versatile transmitters is simple and cost efficient. Our products are used in many different areas and send alarms from sites such as:
Motor protection fault
General alarm, A & B-Alarm
Being able to remotely control your machines and equipment is becoming increasingly popular. Our products enables you to control the attached equipment using nothing more than a text or even a phone call.
Use your mobile phone to open the garage door, turn on the heat or restart the server. You can also get feedback via texts that the event has been performed.
Our products are used to remotely control a wide range of things, here are some examples.
Several of our products are suitable as burglar alarms or can be used as alarm transmitters for existing alarm system to send text messages. No land lines are needed and they are well suited for stationary as well as mobile objects.
The alarm transmitter has an operable alarm function that is controlled by calling or sending an text to it. A programmable list is used to determine whether the sender is authorized or not. It's free to activate the alarm function by calling the unit because the call is never answered, the unit looks at the number, compares it to the access control list, and then cancels the call. CL520 V4 can also be equipped with key fob and keypad.
5 Alarm Zones:
Each alarm zone can be individually programmed for constant surveillance, activated surveillance or perimeter function. Alarm sections can also be individually programmed for sensor type (n/o or n/c) and filter times. When an alarm is triggered up to 4 texts per input will be sent to the programmed recipients. Supply voltage +12V is available for connection of active sensors such as infrared detectors, smoke detectors and humidity sensors and more.
2 Event-driven relay outputs:
The alarm transmitter has two relay outputs (max. 1A at 12V), which is activated automatically at an event or manually via an text. An event can be exceeded temperature limit, activating/deactivating the alarm function or an affected alarm zone. Only users who are in the access control list that can control the functions of the unit via texts, others are ignored.
2 Temperature Sensors:
The alarm transmitter has two temperature sensors that can be queried remotely by text. They can also be made to send text messages or activate a relay output if the set temperature limit is exceeded. The sensors can thus be used for temperature control or frost alarms, temperature can be changed easily by sending an text to the dialer.
The alarm transmitter has a siren output that can drive up to 500mA.
An external backup battery can be connected and will be charged by an internal charge control to ensure long life and trouble free operation. If the battery voltage drops below 11V, an text message will be sent to indicate low battery voltage, ideal for battery monitoring in for example boats or caravans to avoid deep discharge.
Monitoring of supply voltage:
The alarm Transmitter continuously monitors the supply voltage (typically 110/230V via PSU) and alerts via texts if it disappears and when it recurs. (With a connected battery backup.)
Programming the device:
All settings are made very easily with the help of CLx20 V3 Config Tool, most settings can also be made via text messages.