SEZO HM
Hatch and Door Monitoring Sensor
SEZO HM is a compact sensor designed for safeguarding critical technical infrastructure in both outdoor and indoor environments.
It provides anti-tamper and theft protection for:
- manhole covers,
- doors,
- gates,
and transmitting data to the user’s server. The device operates using LTE-M technology.
MONITORING HATCH OPENINGS
SEZO HM provides information on the opening of manhole covers, doors, and other structural partitions through the use of a limit switch on a cable. This enables the sensor to be used in hard-to-reach places, allowing for optimal placement of the switch for hatch or door monitoring and the sensor relative to the range of wireless communication. This advanced solution supports the management of urban, industrial, and retention infrastructure, ensuring reliability and efficiency in monitoring key access points.
LTE-M TECHNOLOGY
LTE-M is a low-power, long-range network specifically designed for IoT devices to connect directly to the 4G network. This technology supports high data transfer speeds, enabling real-time communication, ideally supporting asset monitoring.
Thanks to its performance, LTE-M is an excellent solution for a wide range of IoT applications, providing a reliable connection even in difficult conditions.
PLATFORM INTEGRATION
SEZO HM is fully integrated with the Orange™ Live Objects platform, facilitating the viewing and analysis of data collected by the device. Configuration can be performed remotely configuring the device on the platform according to customer requirements. Additionally it is also possible to connect SEZO HM to other existing platforms, which is possible thanks to the ability to easily set the network server setting. The decoder is available for download on SEZO’s GitHub platform.
Key Features:
- Battery Power: Two 6000mAh lithium batteries (2x ER26500M; 3.6V; Size C).
- Communication: LTE-M, bands B8 and B20.
- Geolocation: Satellite geolocation.
- Integration: Default Orange™ Live Objects platform; possibility of integration with other platforms.
Measured Parameters:
- Opening status, e.g. of a manhole cover (open/closed) or the ability to detect the liquid level in the tank using a float.
- Device location.
- Tamper alarm.
Function Description:
- Hatch Opening: Thanks to the limit switch on a cable, the device provides information about the opening of a hatches or doors, which allows installation in hard-to-reach places. It is also possible to replace the limit switch with a float.
- Anti-Tamper: The device is equipped with a mechanism for detecting tampering attempts, which increases its safety and reliability.
Applications
- Manhole cover monitoring.
- Door and window monitoring (magnets).
- Septic tank monitoring (float sensor).
- Compatibility with any NO/NC sensor.
Get in touch with us to create a system tailored to your requirements. We will be happy to provide support from the conceptual phase to the implementation of your system.
Application Examples
Manhole Cover Monitoring
SEZO HM can be installed in sewer manholes to monitor their opening and closing. This allows urban infrastructure managers to respond quickly to unauthorized openings, preventing theft and vandalism.
Telecom Infrastructure Protection
The device is ideal for monitoring hatches and doors in telecommunication equipment enclosures. Detecting openings and tampering helps secure critical network points.
Water Meter Box Monitoring
SEZO HM can be used to monitor water meter box manholes, enabling quick detection of openings and securing access to water supply infrastructure.
Landfill security
Installation of sensors on landfill manholes and gates enables remote monitoring of access, which is essential for maintaining safety and compliance with regulations.
Pump Station Monitoring
The device can monitor access to water and sewage pump stations, providing immediate alerts for unauthorized access attempts or malfunctions.
Warehouse Space Management
SEZO HM can be used in warehouses to monitor the opening of doors and gates, helping to secure stored materials and optimize space management.
Would you like to share information about SEZO HM with your company’s CTO?
Send a link to this page or share the brochure in PDF format – download below.
TECHNICAL SPECIFICATIONS
Measured Parameters
Location of the device, tamper alarm, opening status, e.g., well flap (contactor) or door/gate (reed switch) or liquid level (float).
Operating Temperature
-30°C ÷ 60°C
Communication Protocols
LTE-M + MQTT, MQTTS (wireless communication with LO).
Radio Frequency and Power
LTE-M band, up to 21 dBm.
Data Transmission Interval
Default 24h or event-triggered (configurable OTA).
Power Supply
2x 6000mAh lithium batteries (2x ER26500M; 3.6V; Size C).
Housing and Mounting
IP67, polycarbonate, mounting elements enabling mounting using expansion bolts on flat surfaces or metal straps on poles.
Weight
Body: 334g.
Body with mounting brackets: 380g.
Body, mounts, and cover opening detector: 682g.
Dimensions
Body: 110 x 95 x 60mm.
Body with mounting brackets: 110 x 95 x 105mm.
Contact us for more information, to organize a remote product training or to create a system personalized to your requirements. We will be happy to support you in developing an IoT system based on SEZO sensors from the conceptual phase to its implementation in your project.
info@sezo.pl
aleja Zwycięstwa 96/98
81-451 Gdynia, Poland
+48 58 663 10 10
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