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Perseus Monitoring 145

Remote Monitoring with LAN and LTE Backup

The HW group Perseus Monitoring 145 is a solution for remote monitoring of on-site environmental conditions via LAN – and thanks to the integrated LTE modem, also when no LAN connection is available or fails. The device combines data from externally connected physical sensors and detectors with data from other HWg devices integrated over the network. Local conditions, Lua scripting, a calendar or a periodic scheduler help evaluate the measured data – with a capacity of up to 1,000 variables.

Alarm situations can be indicated locally via relay outputs (DO), sent as standalone alarms (SMS, call, e-mail – also via the internal LTE modem) or evaluated via the SensDesk portal with graphs, virtual sensors, device failure alerts and PDF reports. The Perseus 145 can also provide all measured values individually via the open API (SNMP, MQTT, Modbus/TCP, XML).

Sensors, Detectors, LTE Backup and Other Network Devices in One System

The Perseus Monitoring 145 combines classic sensor connections with the evaluation of other devices on the same LAN – and remains reachable even in the event of an Ethernet failure thanks to the LTE modem.

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Integrated LTE Modem

Globally deployable LTE modem for backup connectivity to the portal as well as SMS and call alarms; can also be used as an SMS gateway for other HWg devices. SIM card not included.

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4x RJ11 (1-Wire UNI)

Up to two 1-Wire UNI sensors from HW group per port, e.g. for temperature, humidity, voltage or current.

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RS-485 (Modbus/RTU)

4-pin terminal block with 12V for connecting Modbus/RTU-capable third-party sensors.

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WLD Water Leak Detection

1 zone for an external water sensor cable with a total length of up to 185 m.

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4x DI / 2x DO

Four digital inputs for dry contacts and two relay outputs for controlling e.g. ventilation or doors.

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Meters API

Additionally reads sensor data from other HWg and third-party devices on the same LAN (SNMP, Modbus/TCP, MQTT, HWg XML).

Individually Selectable: Base Unit or Starter Set

The Perseus Monitoring 145 is available either as a pure base unit or as a complete temperature monitoring starter set. The desired variant is selected directly above the shopping cart.

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Please note: The base unit "Perseus Monitoring 145" includes neither a power supply, sensors, GSM antenna nor a SIM card. The "Perseus Monitoring 145 Tset" variant additionally includes a power supply, a temperature sensor and an LTE antenna – but also without a SIM card. The variant must be selected before adding to the shopping cart.

Perseus Monitoring 145

Perseus 145 unit for IT and industrial applications: metal housing, LTE backup, 4x DI, 2x DO (relays), 4x RJ11 (8x60 m, 1 port = 1 sensor), 1x WLD zone, RS485 Modbus-RTU, Meters API. Power adapter, sensors, GSM antenna and SIM card are not included.

Perseus Monitoring 145 Tset

Perseus 145 temperature monitoring starter set. Includes: Perseus Monitoring 145 as above, universal power supply 12V/1.5A, Temp-1Wire-3m-IP67 temperature sensor and an LTE antenna Quadband Pigtail. No SIM card included.

How the Perseus Monitoring 145 Is Built

The robust metal housing is compact at approx. 35 x 111 x 140 mm, with protection class IP40 and designed for operating temperatures from -30°C to 65°C.

1

Metal Housing

Robust metal housing for IT, SoHo and industrial environments, optionally mountable on a desk or in a rack (optional mounting plate "Mount plate F-1U" available according to the manufacturer for Perseus Monitoring 140/145).

2

Ethernet Port with Web Server

One RJ45 Ethernet port (100BASE-T) connects the device to the network; an integrated web server enables configuration directly via the browser.

3

LTE Modem with SIM Slot and External SMA Antenna

Internal, globally deployable LTE modem with SIM card slot and connection for an external SMA antenna. Serves as a backup channel to the portal as well as for SMS and call alarms; SIM card and antenna are not included with the base unit.

4

Sensor Connections

Four RJ11 ports for 1-Wire/1-Wire UNI sensors and a 4-pin RS-485 terminal block (including 12V) for Modbus/RTU sensors.

5

WLD, DI and DO Terminals

One WLD zone connection for the water leak sensor cable (A/B), four terminals for digital dry-contact inputs and two relay outputs (up to 50V/1000mA) for controlling external actuators.

6

Power Supply

The Perseus 145 is powered either via a barrel connector (2.1/5.5 mm) or via a terminal block with 9–30 V DC (power consumption approx. 500 mA).

7

Status Indicators

LEDs on the front of the device indicate, among other things, status, alarm and WLD state.

Evaluate Sensor Data from Other LAN Devices as Well

The Meters API is a unique feature of the Perseus product line: the device additionally reads sensor values from external LAN devices and includes them in analyses and alarms.

  • Readable protocols: HWg XML, Modbus/TCP, SNMP, MQTT
  • Examples of supported third-party devices: STE2 R2, NETIO PowerPDU 8QS, SNMP-capable UPS systems
  • Comparison of multiple sources possible, e.g. own 1-Wire temperature sensor vs. external thermometer vs. UPS temperature probe
  • Alarm can be triggered as soon as at least 2 of several sources exceed a critical value

In addition, the Perseus Monitoring 145 supports integration into building automation systems via BACnet/TCP as well as IPv6 for modern, future-proof network environments.

Multi-Level Notification for Critical Events – Even During LAN Failure

The Perseus Monitoring 145 offers local, network-based and LTE-supported alarm options.

Local Alarms

Switching of the relay outputs (DO) based on sensor data, e.g. to activate ventilation or sirens.

Standalone Device Alarms

SNMP trap, e-mail as well as SMS/calls via the integrated LTE modem – independent of the LAN connection.

Portal Alarms (SensDesk)

Additionally e-mail, SMS, voice calls, device failure alert (Device Invalid Alert), alarm escalation and group alarms – the portal connection remains intact even in the event of an Ethernet failure thanks to LTE backup.

Advanced Conditions

Alarms can be configured, for example, so that they only take effect when 2 of 5 sensors exceed a threshold or are unreachable.

Lua Scripting, Conditions and Schedules

For individual evaluation logic, the Perseus Monitoring 145 comes with several tools.

  • Local, user-defined scripts in Lua
  • Variables with multiple conditions and actions
  • Calendar- or period-based scheduler
  • Template repository for third-party sensors
  • Virtual sensors as well as unit conversion and calibration offset
  • Integrated logger with 32 MB memory

Secure Authentication and Encryption

  • RADIUS authentication according to IEEE 802.1X
  • HTTPS with customer certificate
  • Admin and user accounts with separate access rights
  • IPv6 support as well as SNMP v1 and v3 (including SNMP traps)

From Free Cloud Access to Your Own Portal Instance

The Perseus Monitoring 145 can optionally be connected to the SensDesk portal and thereby expanded with central evaluation and management functions – the connection remains intact even in the event of a LAN failure thanks to LTE backup.

HWg-cloud.com

Free portal service with e-mail alarms, device failure alert and a value graph with short history.

SensDesk.com / Portal Provider

Paid portals with e-mail, SMS and voice call alarms, virtual sensors, multi-graphs over several years, PDF reports and multi-user accounts.

Portal On-Premise

Standalone SensDesk installation on your own server for companies with special data protection requirements.

HWg Monitor App

Mobile app for iOS and Android, shows all sensor values at a glance – also usable as a wall display in the technical room.

Commissioning in a Few Steps

Setting up the Perseus Monitoring 145 is done entirely via the web browser.

  1. Place the device on a desk or optionally mount it in a rack
  2. Connect the power supply (9–30 V DC; power supply already included with the Tset variant)
  3. Connect the device to the network via Ethernet cable
  4. Optional: insert SIM card and screw the LTE antenna onto the SMA connector (antenna included with the Tset variant; SIM card not included with either variant)
  5. Open the device’s IP address in the browser (initial search e.g. possible with HWg-Config)
  6. Connect 1-Wire UNI sensors to the RJ11 ports or Modbus/RTU sensors to the RS-485 terminal block
  7. Optional: wire the WLD sensor cable, dry contacts and relay outputs
  8. Optional: configure alarm rules, Lua scripts or the connection to SensDesk/HWg-cloud.com

Why the Perseus Monitoring 145 Is the Right Choice

LTE Backup

Remains reachable and capable of alarming even if the LAN connection fails.

Versatile Sensing

4x RJ11, RS-485, WLD, DI/DO in one device.

Meters API

Additional evaluation of sensor data from other LAN devices.

Open Standards

SNMP, Modbus/TCP, MQTT, XML and BACnet/TCP.

Robust Metal Housing

Designed for operating temperatures from -30°C to 65°C.

24-Month Warranty

According to the manufacturer with 24 months warranty from the date of purchase.

Practical Application Examples

  • Remote monitoring of machines and technical rooms
  • Environmental monitoring of warehouses and storage rooms
  • Data concentrator for all local sensors and measuring devices at one site
  • Pharmaceutical storage and HVAC environmental monitoring
  • Monitoring of control cabinets or telecommunications sites without reliable LAN
  • Base stations (BTS) and greenhouses
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Practical example: In a warehouse with cold and freezer rooms, up to four 1-Wire UNI temperature sensors are connected directly to the Perseus Monitoring 145. In addition, the device reads the battery status of an SNMP-capable UPS via the Meters API. An alarm is triggered as soon as 2 of 5 sensors exceed a threshold or are unreachable; thanks to the internal LTE modem, the SMS or call notification is reliably sent even in the event of a LAN connection failure.

Frequently Asked Questions

What is the HW group Perseus Monitoring 145 and what is it used for?

The Perseus Monitoring 145 is a LAN- and LTE-based remote monitoring solution that combines external sensors, detectors and data from other LAN devices. It is suitable for server rooms, technical rooms, warehouses, telecommunications sites and other critical environments, particularly where a reliable LAN connection cannot be guaranteed.

What is the difference between the base unit and the Tset?

The base unit "Perseus Monitoring 145" includes neither a power supply, sensors, GSM antenna nor a SIM card. The "Perseus Monitoring 145 Tset" variant additionally includes a universal power supply (12V/1.5A), a Temp-1Wire-3m-IP67 temperature sensor and an LTE antenna Quadband Pigtail – a SIM card is not included with either variant. The variant is selected above the shopping cart.

What is the purpose of the integrated LTE modem?

The internal, globally deployable LTE modem serves as backup connectivity to the SensDesk portal if the LAN connection fails, and enables direct SMS and call alarms. In addition, it can be configured as an SMS gateway for other HW group devices on the network. A SIM card is not included and must be obtained separately.

What exactly is the Meters API?

The Meters API is a special feature of the Perseus product line: in addition to the directly connected sensors, the device can also read values from other devices on the same LAN, for example from further HWg devices, SNMP-capable UPS systems or network PDUs, and include this data in its own analyses and alarms.

How many sensors can be connected?

Directly available are 4x RJ11 ports with up to two 1-Wire UNI sensors each as well as one RS-485 connection for Modbus/RTU sensors. In total, the Perseus Monitoring 145 supports up to 1,000 variables according to the manufacturer, among other things through the additional integration of sensors via the Meters API.

What is the maximum length of the water leak sensor cable?

An external water sensor cable with a total length of up to 185 metres can be connected to the WLD zone connection.

How is the Perseus Monitoring 145 powered?

The device requires a DC voltage of 9–30 V, either via a barrel connector or via a terminal block. A matching 12V/1.5A power supply is only included in the Tset package; for the base unit it must be obtained separately.

What security features does the device offer?

The Perseus Monitoring 145 supports RADIUS authentication according to IEEE 802.1X, HTTPS with customer certificate, separate admin and user accounts as well as IPv6 and SNMP v1/v3 including SNMP traps.

Questions about the Perseus Monitoring 145?

Our support team in Germany provides free advice on selection, sensors and configuration.

Datasheets
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Datasheet 1 (520.58 KB)
Datasheet 2

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Datasheet 2 (10.56 MB)
Available Variants (Please select above)
  • Perseus Monitoring 145:
    Base unit only - power adapter, sensors, GSM antenna, and SIM card NOT included
  • Perseus Monitoring 145 Tset:
    Universal power supply 12V 1.5A
    Temp-1-Wire 3m IP67
    LTE quad-band pigtail antenna - NO SIM card included.

Interfaces:

  • 4× RJ11 ports for 1-Wire / 1-Wire UNI sensors
  • 1× RS-485 (Modbus/RTU) – 4-pin terminal block with 12V
  • 1× WLD zone for external water leak detection cable
  • 2× DO (relay outputs)
  • 4× DI (digital inputs, dry contact)
  • Ethernet RJ45 (100BASE-T)
  • Integrated LTE modem (SIM card not included)

Meters API Support:

  • HWg XML
  • Modbus/TCP
  • MQTT
  • SNMP

Alarm Functions:

  • SNMP Trap
  • Email
  • SMS / Calls (via integrated LTE modem)
  • LTE available globally

Open API:

  • SNMP
  • XML
  • Modbus/TCP
  • MQTT

Security Features:

  • IPv6 support
  • SNMP Traps
  • SNMPv3
  • Radius – IEEE 802.1X
  • Admin and user accounts
  • HTTPS (client certificate)

Technical Specifications:

  • Power supply: 9-30V (12V, 1.5A)
  • Operating temperature: -30°C to 65°C (-22°F to 149°F)
  • Enclosure: Metal, 35 × 111 × 140 mm
  • Warranty: 24 months

LTE Modem Features:

  • Backup connectivity to the portal
  • SMS and call alarms
  • Can be configured as an SMS gateway for other HW group devices
  • Enables monitoring even without LAN connection

Sensors and Cables:

  • External water sensor cable for water leak detection
  • Support for 1W-UNI sensors from HW group
  • Connection for third-party sensors via RS-485
  • 4× digital inputs for detectors (normally open/closed contacts)

Additional Features:

  • Local Lua scripts
  • Calendar-based scheduler
  • Template repository for third-party sensors
  • Variables with multiple conditions and actions
  • Unit conversion

Typical Applications:

  • Remote monitoring of machines / technical rooms
  • Environmental monitoring of warehouses / storage rooms
  • Data concentrators for local sensors / measuring devices
  • Remote monitoring of base stations

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

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