STE2 PLUS
€349.00
STE2 PLUS – Professional SNMP Monitoring for Temperature and Environment
Precise and reliable temperature monitoring is indispensable in many industries, whether in the storage of sensitive medications, data centers, or the supervision of technical systems.
The STE2 PLUS offers a tailored solution for modern temperature monitoring. By combining LAN and WLAN, this device enables flexible integration into existing IT infrastructures without compromising security or user-friendliness.
Support for SNMP monitoring (especially the secure SNMPv3 version) allows easy integration into professional network management systems, which is particularly important for companies with high compliance requirements.
Furthermore, the STE2 PLUS provides comprehensive remote monitoring of environmental parameters. With the ability to connect up to 15 sensor values and integrate various sensor types such as temperature, humidity, or gas detectors, this system creates a powerful sensor network.
The data is not only displayed locally but can also be centrally managed via the free cloud platform HWg-cloud.com or professional portals like SensDesk. This enables users to benefit from modern smart monitoring, offering quick access to critical values anytime and anywhere.
Another major advantage of the STE2 PLUS is its support for PoE sensor technology. Power over Ethernet simplifies installation significantly as no separate power supplies are required.
This makes the device especially attractive for use in complex environments such as data centers or large buildings where minimally invasive cabling is desired. At the same time, the PoE functionality guarantees stable power supply even over long cable runs, which sustainably increases the reliability of temperature monitoring.
In the area of alerting, the STE2 PLUS sets new standards: it can not only send emails when defined threshold values are exceeded but also trigger SMS and voice calls—depending on how users configure their system.
Particularly practical is the repeat function that ensures important warnings are not overlooked. Especially in safety-critical areas, where a quick reaction to temperature deviations is essential, the STE2 PLUS offers clear added value.
Furthermore, the device supports integration into existing IT and building management systems via SNMP traps and virtual digital outputs, allowing further actuators in the network to be controlled specifically.
This makes the STE2 PLUS not just a measuring device but a fully-fledged IoT temperature monitoring and control system that can be flexibly adapted to different requirements.
Overall, the STE2 PLUS offers a comprehensive package of state-of-the-art sensor technology, secure network connectivity, and flexible alerting options.
The combination of temperature monitoring, environmental surveillance, and a well-thought-out monitoring system makes it the first choice for professional users who value maximum reliability and ease of use.
Below you will find a detailed overview of the technical features, supported sensors, and application scenarios that make the STE2 PLUS an indispensable tool for monitoring critical environmental parameters.
Reliable Alerting for Threshold Exceedances
As soon as the measured values (temperature, humidity, voltage, etc.) exceed the defined safety limits, the STE2 PLUS reliably triggers an alarm. Alarm notifications can be sent in real-time via multiple channels:
- Email notification directly from the device via a configured SMTP server
- Email alerting via the portal (recommended for long-term reliability)
- SMS and voice calls via external SMS gateways (e.g., SMS-GW3 or SMS-GW3 LTE – optionally available)
A special feature is the alarm reminder, which repeatedly informs about an ongoing alarm condition as long as it persists. This prevents alarms from being overlooked. Simple escalation of alarm messages via email is also possible through the portal.
Simple Setup and Management
Commissioning is straightforward: the device is connected via LAN, the IP address is determined using the HWg-Config software, and then the integrated web interface is accessed. External sensors can be named, value ranges defined, and alarms configured there. In addition, virtual digital outputs (VDO) provide access to remote relays.
Mobile Control with the HWg Monitor App
With the free HWg Monitor App (iOS & Android), sensor values can be conveniently accessed from smartphones or tablets—both over the local network and via the cloud. All sensor values are displayed on a single screen. Important sensors can be displayed as widgets directly on the home screen.
Versatile Application Areas
The STE2 PLUS is the ideal solution for monitoring critical environmental conditions in various areas:
- Server rooms and technical systems
- Medication storage with automatic logging
- Cold and freezer storage in gastronomy and retail
- Building management and heating optimization
- Wine cellars, archives, and museums
Supported Sensors and Detectors
Up to 15 sensor values can be connected to the STE2 PLUS—even via daisy chain connection (RJ11). A physical sensor can measure multiple values (e.g., temperature + humidity). Compatible sensors include:
- Temperature sensors (indoor, outdoor, cryogenic, calibrated)
- Relative humidity sensors
- CO₂ and VOC sensors
- Light sensors
- Current sensors (AC / DC)
- Voltage sensors (0–230 V)
- 4–20 mA converters for industrial sensors
- Water leak detectors (point or cable type)
- Airflow, door contact, motion, and gas sensors
- Power line detection (110 / 230 V)
- Vibration detectors
Portal Functionality: HWg-Cloud & SensDesk
The free HWg-cloud.com portal allows centralized management of up to 20 devices. It offers, among other things:
- Central alarm overview and notifications
- Sensor value charts and historical data
- Device failure alarms
- Control of remote relays based on sensor values
For professional requirements, SensDesk Technology (paid) is available as a cloud service or on-premise solution. Features include:
- SMS, email, and voice call alarms
- Multi-year history charts
- Multi-user access and API integration (SNMP/XML)
- PDF reports, user rights management, advanced alarms
Technical Highlights of the STE2 PLUS
- LAN & WLAN – flexible network connection
- PoE – power supply via Ethernet
- 2× RJ11 ports for up to 15 sensor values
- 2× digital inputs for detectors
- HTTPS support with custom certificates
- SNMP v3 & traps for IT integration
- VDO – control of external relays over the network
- IPv6 support – future-proof communication
YouTube
Network Specifications
• Ethernet: 10/100Mbit
• WiFi: IEEE 802.11bg
• IPv6: Yes
• DHCP: Yes
Protocols
• SNMP: v1 + v3
• SNMP Trap: Yes
• HTTP: Yes
• HTTPS: Yes
• XML: Yes
• SMTP: Yes
• SMTP TLS: Yes
• HWg-Push (SensDesk): Yes
• Net-GSM (SMS GW): Yes
• Syslog: Yes
Sensors
• 1-Wire sensor values: Max 15
• 1-Wire UNI: Yes
• DI (Digital Inputs): 2
• DO (Outputs): 8 VDO
• Virtual Digital Outputs: Yes
Alarms
• Email targets: 5
• Trap targets: 5
• SMS targets: 5
• Alarm reminder: Yes
• Periodic status: Yes
Power Supply and Dimensions
• Power supply: 5V / 300 mA
• Connector: Jack (barrel plug, inner 1.35 mm outer 3.5 mm)
• PoE: Yes
• PoE Current: 60 mA
• PoE Class: IEEE 802.3af Class 0
• Operation / Storage: -30°C to 60°C, 0% RH to 95% RH
• Weight: 91 g
• Dimensions: 98x68x33 mm
• Environment: SoHo, IT
• Installation: DIN rail, desktop, wall
• Protection rating: IP40
Other devices
Available sensors
Extension units
Accessories
DB9 LapLink Cable 2m A LapLink cable (also known as Lablink or null-printer cable) is a cable used to connect two computers directly via a cable connection. Housing: Plastic Type: Cable
DIN-Rail Box Set A mounting kit for installing HW-group devices on a DIN rail. Applications and Use: Mounting kit for installing HW-group devices with metal housing on a DIN rail. Operating environment: -30°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 45 x 11 x 105 (W x H x D) / 22g
Mounting Kit Screw set for mechanical mounting Applications and Use: Screw set for mechanical fastening
Mounting Plate D Bracket for Ares and Poseidon2 Operating environment: -3°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 74 x 6 x 120 (W x H x D) / 58g Warranty: 24 months Wall mounting plate for Ares, Poseidon2 3266/68 and other products.
Mounting Plate E- 1U Rack (cabinet) mounting plate, 1U mounting for HW-group Ares and Poseidon2 devices Operating environment: -30°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 127 x 45 x 94 (W x H x D) / 137g Warranty: 24 months Rack (cabinet) mounting plate, 1U mounting for HW-group Ares, Poseidon2 3266/3268 and other products.
Mounting Plate L DIN Rail DIN rail mounting plate for Ares, Poseidon2 3268, and other products. Features: Metal housing Wall mounting Applications and Use: Profiles for metal-encapsulated HWg devices for wall mounting. Dimensions: 150 x 120 x 45 (W x H x D) / 65g Warranty: 24 months
Rack Shelf 1U A versatile solution for easy mounting of HW-group devices in 1U racks. Operating environment: -30°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 485 x 44 x 104 (W x H x D) / 597g Warranty: 24 months Housing: Metal Type: Wall mounting This shelf makes it easy to use devices in racks. You can even combine different 1U products and sensors.
Mounting Kit for Poseidon2 4002 and HWg-SMS-GW3 Applications and Use: Mounting kit for Poseidon2 4002 and HWg-SMS-GW3 Operating environment: -30°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 136 x 45 x 16 (W x H x D) / 165g Warranty: 24 months
I/O Controller
IP WatchDog
Software
Manufacturer information:
HW group s. r. o.
Rumunská 26
Prague, 120 00
Czech Republic
Phone: +420 222 511 918
Email: sales@hwg.cz
Responsible person:
Didactum® Security GmbH
Marsweg 17
48163 Münster
Deutschland
Fon: +49 - 2501 - 9 78 58 80
Email: info@didactum-security.de
