STE2 R2
€245.00
Reliable environmental monitoring for remote locations – via LAN, WiFi and PoE
The HW group STE2 R2 is a reliable LAN and WiFi device for remote monitoring of sensors. It has 2 RJ11 ports for external sensors and 2 digital inputs (DI) for dry-contact detectors. As soon as a temperature that is too high or too low is detected (or e.g. a door is opened), an alarm is triggered. E-mail alarms can be sent directly from the device (SMTP) or via a portal service – there additionally by SMS, voice call and as a device failure alarm.
Even without a portal, the STE2 R2 can alarm via an external SMS gateway on the same network. With or without a portal, the mobile HWg Monitor app (iOS/Android) displays the current sensor values. The scope of delivery includes an international 5V plug-in power supply and a 3 m temperature sensor (IP67); alternatively, the device can be powered via PoE.
Up to 5 sensor values and 2 detectors on one device
The STE2 R2 measures temperature and other environmental values, monitors contacts and reports limit value exceedances.
Temperature sensor included
A temperature sensor with 3 m cable (IP67) is included in the scope of delivery – ready for immediate use, also for outdoor areas.
2x RJ11 (1-Wire / 1-Wire UNI)
Two sensor connectors for HW group sensors with up to 5 sensor values in total, expandable via daisy-chain.
2x DI (dry contact)
Two digital inputs for detectors such as door contact, smoke detector, motion detector, water, vibration or voltage detector.
LAN, WiFi and PoE
Connection via Ethernet (10/100 Mbit) or integrated WiFi (IEEE 802.11 b/g/n); power supply optionally via power supply unit or PoE.
E-mail, SMS and voice alarms
E-mail directly from the device; SMS and voice calls via an external SMS gateway or via the portal.
Open interfaces
Integration into third-party systems via SNMP and XML; connection to portals via HWg-Push; HTTPS web server.
What is included in the box
The STE2 R2 is a device without variants – sensor and power supply are already included in the package.
- STE2 R2 device
- Temperature sensor (Temp-1Wire, IP67), 3 m cable
- 5V plug-in power supply (international: EU, UK, US)
How the STE2 R2 is built
The compact housing measures approximately 98 x 68 x 33 mm (W x H x D), weighs about 91 g and is designed with IP40 protection class for SoHo and IT environments. It can be placed on a desk, mounted on the wall or on a DIN rail. Operating temperature: −10°C to 60°C.
Compact housing for desk, wall and DIN rail
Flat form factor for flexible mounting in server rooms, offices, warehouses or technical rooms.
Ethernet connection with PoE and web server
An RJ45 port (10/100 Mbit) connects the device to the network and can power it via Power over Ethernet (IEEE 802.3af). An integrated web server enables configuration directly via the browser (also via HTTPS).
Integrated WiFi
As an alternative to the cable, the device can be integrated into the network via the built-in WiFi (IEEE 802.11 b/g/n); a WiFi indicator and a reset button are located on the device.
2x RJ11 sensor connector (Port 1 and Port 2)
Two RJ11 ports for 1-Wire and 1-Wire UNI sensors from HW group with a total of up to 5 sensor values. Sensors can be operated individually on both ports or daisy-chained (maximum total length 60 m). A sensor alarm is additionally signalled optically at the RJ11 sockets.
DI terminals for dry contacts
Two screw terminals for digital inputs (dry contact), e.g. for door contacts or detectors. A closed input triggers the configured alarm.
Power connection (5V or PoE)
Supply via a barrel jack (Ø 3.5 x 1.35 mm) with 5V DC (approx. 300 mA) or alternatively via PoE over the Ethernet port (approx. 60 mA). The matching power supply is included.
Expandable with compatible RJ11 sensors and detectors
Up to 5 external sensor values (RJ11) plus 2 DI detectors can be connected. A single physical sensor can provide several values (e.g. °C + %RH + VOC = 3 values).
- Temperature (indoor, outdoor, deep freeze), including calibrated sensors
- Relative humidity (indoor, outdoor)
- CO₂ and VOC concentration
- Light intensity
- AC and DC current
- AC voltage (0–230 V)
- 4–20 mA sensors (via converter) for industrial probes
- Water/flood detector (point detection)
- WLD relay with external sensor cable
- Airflow detector
- Door contact and PIR motion detector
- Gas leak, voltage (110/230 V) and vibration detector
A calibration offset (Calibration Shift) can be configured in the device.
Notification when limit values are exceeded
As soon as a measured value (temperature, humidity, voltage …) leaves the defined min-max range or a DI input is closed, the STE2 R2 sends an alarm.
E-mail from the device
Sent directly from the STE2 R2 via an SMTP server (with TLS support), optionally delayed or periodic. Public webmail SMTP servers are not recommended due to changing security requirements.
SMS and voice call via gateway
Via an external SMS gateway (SMS-GW3 or SMS-GW3 LTE) on the same LAN. One gateway can forward alarms from multiple devices – without a portal or software.
Portal alarms
E-mail from the portal (more reliable in the long term), device failure alarm (Device Invalid Alert), simple alarm escalation via e-mail as well as SMS and voice calls with paid portals.
Display in the app
The free HWg Monitor app displays all sensor values on one screen – also usable as a wall display.
From free cloud access to a professional solution
The STE2 R2 is a standalone device – connection to a portal is optional and can be added at any time.
HWg-cloud.com
Free portal service for up to 20 devices per user account: e-mail alarms, device failure alarm, value graphs, simple alarm escalation (e-mail only), central alarm overview and output switching.
SensDesk.com / portal provider
Paid portals (SaaS or on-premise) with e-mail, SMS and voice alarms, multi-graphs over several years, PDF reports, multi-user accounts and user API (SNMP or XML).
HWg Monitor app
Mobile app for Android and iOS: display of sensor values from local devices or via the portal, with widgets for preferred sensors.
Third-party software
Integration into SNMP-based systems and third-party software (e.g. via the HWg-SDK) possible.
Commissioning in a few minutes
Setup of the STE2 R2 is performed entirely via the web browser.
- Place or mount the device and connect the 5V power supply (or power via PoE)
- Establish a network connection – via LAN cable or the integrated WiFi
- Open the device’s IP address in the browser (initial discovery e.g. with HWg-Config possible)
- Connect external sensors to the RJ11 ports and detectors to the DI terminals
- Set limit values (min-max range) and select alarm types (e-mail, SMS, voice call)
- Optional: connection to HWg-cloud.com or a SensDesk portal
Why the STE2 R2 is the right choice
Ready for immediate use
IP67 temperature sensor with 3 m cable and power supply included in the scope of delivery.
LAN, WiFi and PoE
Flexible network connection and power supply.
Up to 5 sensor values + 2 DI
Two RJ11 ports, expandable via daisy-chain, plus two contact inputs.
Many compatible sensors
Temperature, humidity, CO₂, VOC, current, voltage, water and much more.
App and cloud
HWg Monitor app as well as free portal HWg-cloud.com.
24-month warranty
According to the manufacturer with 24 months warranty from the date of purchase.
Practical application examples
- Remote monitoring of server environments and data centers
- Temperature monitoring in IT
- Air conditioning monitoring (alarm in case of cooling failure)
- Food and pharmaceutical storage: control of storage conditions, HACCP protocols with application software
- Monitoring of temperature, humidity, current and CO₂
- Detection of water leaks (point detector or sensor cable)
- Pharmacies, medical facilities and healthcare
- Warehouses, hotels, holiday apartments, retail and wine cellars
Practical example: In a server room, the STE2 R2 measures the room temperature with the supplied sensor; a door contact on the DI input reports when the door is opened. If the air conditioning fails or the door is opened, the device immediately sends an e-mail. With an SMS gateway on the network or a portal, the alarm is additionally sent by SMS or voice call.
Frequently asked questions
What is the HW group STE2 R2 and what is it used for?
The STE2 R2 is a LAN and WiFi device for remote monitoring of temperature and other environmental values with 2 RJ11 sensor ports and 2 digital inputs. It is used in server rooms, data centers, warehouses, pharmacies, retail, wine cellars and many other areas and reports limit value exceedances by e-mail, SMS or voice call.
What is included in the scope of delivery?
The package includes the STE2 R2 device, a temperature sensor with 3 m cable (IP67) and an international 5V plug-in power supply. The device is supplied without variants.
How many sensors and detectors can be connected?
A total of up to 5 sensor values can be recorded on the 2 RJ11 ports; sensors can be daisy-chained (maximum total length 60 m), and one sensor can provide several values. In addition, 2 digital inputs (DI) are available for dry-contact detectors.
Can the STE2 R2 alarm by SMS or call?
Yes, but not on its own: for SMS and voice alarms an external SMS gateway (SMS-GW3 or SMS-GW3 LTE) on the same LAN or a portal service is required. One gateway can forward alarms from multiple devices; a portal or additional software is not required for this.
Is a portal mandatory?
No. The STE2 R2 is a standalone device; the portal is only an option. For long-term reliable e-mail alarms, however, the manufacturer recommends the free HWg-cloud.com service, which also offers a device failure alarm (Device Invalid Alert).
How is the STE2 R2 powered?
Optionally with 5V DC via a barrel jack (Ø 3.5 x 1.35 mm) – the matching international plug-in power supply is included – or via Power over Ethernet (PoE) over the Ethernet port.
What interfaces does the device offer for integration?
The STE2 R2 supports SNMP and XML as open interfaces as well as HWg-Push for portal connection and can thus be integrated into third-party systems. The web interface is accessible via HTTPS.
Questions about the STE2 R2?
Our support team in Germany advises you free of charge on selection, sensors and configuration.
Network Specifications
• Ethernet: 10/100Mbit
• WiFi: IEEE 802.11bg
• IPv6: No
• DHCP: Yes
Protocols
• SNMP: v1
• SNMP Trap: No
• HTTP: Yes
• HTTPS: Yes
• XML: Yes
• SMTP: Yes
• SMTP TLS: Yes
• HWg-Push (SensDesk): Yes
• Net-GSM (SMS GW): Yes
• Syslog: No
Sensors
• 1-Wire sensor values: Max. 5
• 1-Wire UNI: Yes
• DI (Digital Inputs): 2
• DO (Outputs): No
• VDO (Virtual Digital Outputs): No
Alarms
• E-mail targets: 5
• Trap targets: 5
• SMS targets: 5
• Alarm reminder: No
• Periodic status: No
Power Supply
• Power supply: 5V / 300 mA
• Connector: Jack (Barrel, inner 1.35 mm, outer 3.5 mm)
• PoE: Yes
• PoE current: 60 mA
• PoE class: IEEE 802.3af Class 0
Environmental Conditions
• Operating/storage temperature: -30°C to 60°C
• Humidity: 0% RH to 95% RH
• Environment: SoHo, IT
Mechanical Properties
• Weight: 91 g
• Dimensions: 98x68x33 mm
• Installation: DIN, desktop, wall
• Protection class: 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
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.
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 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
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
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.
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
Im Mühlenfeld 4
48163 Münster
Deutschland
Fon:
(+49) 250 19 71 63 54 / (+49) 171 33 11 577
Email: info@didactum-security.de
