Knowledge base articles overview - All knowledge base articles
The HW group product portfolio includes three major domains: Environmental, system and process monitoring devices; technology for IP based serial interface system control and data logging and Access Systems.
Monitoring
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Changing the default configuration of Poseidon2 and Damocles2 - Disabling TCP settings
Small change in the upcoming Poseidon2 and Damocles2 FW update. The default configuration is affected and this braks the backward compatibility. The news is that the TCP setup will be disabled in the default configuration.
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Device Disconnected Alert from HWg-Cloud: Long-term reliable monitoring system
A functional remote monitoring device may face interruptions like power cuts or connection failures, preventing alert delivery. To notify you during such instances, portals (even free ones like HWg-cloud.com) can alert when the device is disconnected.
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Difference between Water Spot Detection and WLD Zone Detection
This article explains the main difference between spot and zone detection.
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Ethernet remains the favourite network for both IT and industry
Poseidon2, Damocles2, and STE2, the industry-leading environmental monitoring products, use the wire-based Ethernet and Wi-Fi standards that are most suitable for the industrial environment.
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Getting started with SensDesk Technology
We have created a central repository where everything we have ever produced about SensDesk can be found.
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How (not) to destroy a relay
A relay, being a switching element, is usually regarded as a simple component. However, it is relatively easy to destroy if it is used to switch unsuitable loads.
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Many sensor options as a part of the Ecosystem
Let's take a look at some of the most popular sensor and detector options used by professionals for environmental monitoring.
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MQTT - universal protocol for cloud and IoT applications
Protocol intended especially for sensor networks, used by many manufacturers of sensor devices as well a universal single-board applications, including HW group. Its main advantage is small data overhead leading to fast transfer, which is ideal for IoT ap
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SensDesk portal as a unified monitoring center
Create custom views and graphs, arrange devices in groups and view sensor data in custom graphs – these are basic SensDesk features. At the same time, it unifies the communication with and control of all HW group devices, including mutual communication.
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Smart devices or a central portal: Simple single-purpose devices (SD devices) do their job, too
HW group devices support two trends in modern sensor technology. First, there are single-purpose devices with IoT network topology, dependent on a central application for control. Then, there are smart devices for autonomous operation and networks.
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SMS-GW as a part of the Ecosystem
In extensive projects, efficient monitoring is vital. Preferences vary; some opt for SMS/calls over emails for alerts. HW group acknowledges this and offers two SMS gateway versions, a topic we'll explore further.
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SNMP – Interface description
SNMP (Simple Network Management Protocol) is suitable for primary system information exchange using short packets.
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STE2 r2 – More than just a software facelift
The most visible differences between the STE2 r2 and the first generation include HTTPS support, more modern web design, reworked method of setting targets for SMS and e-mails, and the ability to configure sensor safe ranges remotely from the SensDesk.
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Top-selling WLD component: WLD Relay
The focus of this article is to describe and explain our best-selling WLD component: WLD Relay
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Use a public SMTP server: Not recommended
Public SMTP servers fall short in 2023 for long-term alerts. Discover a more dependable path with HW group's free Portal.
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Water Detection: Sensing cable versus Flood sensor
Early Water Leak/Spot Detection is essential in a lot of businesses. With the right detection of water and early alert, costly damages can be avoided.
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Water Leak Detection (WLD) system
Water Leak Detection system is complex solution for detection of water leakage. With the right detection of water and early alert, costly water damages can be avoided.
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WLD Sensing Cable: The Heart of the WLD System
HW group's WLD System, featuring the Type A sensing cable, transforms water leak detection. From data centers to industrial sites, its robust design ensures rapid response, safeguarding businesses from potential damages and financial losses.
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WLD System Components by HW group
This article is about WLD zone devices from the HW group and best practices related to the alerting process.
Software
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HWg-NR1: Node-RED & STE2 R2 Integration Example (LAN)
An example of STE2 family device integration with the Node-RED platform (LAN)
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HWg-NR2: Node-RED & STE2 + NB WLD Integration Example (Sensdesk.com Portal)
An example of STE2 family device + NB WLD device integration with the Node-RED platform (Sensdesk.com Portal)
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SensDesk portal as a unified monitoring center
Create custom views and graphs, arrange devices in groups and view sensor data in custom graphs – these are basic SensDesk features. At the same time, it unifies the communication with and control of all HW group devices, including mutual communication.
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Smart devices or a central portal: Simple single-purpose devices (SD devices) do their job, too
HW group devices support two trends in modern sensor technology. First, there are single-purpose devices with IoT network topology, dependent on a central application for control. Then, there are smart devices for autonomous operation and networks.