Skip to main content Skip to search Skip to main navigation

Perseus Monitoring 140

The Versatile LAN Solution for Remote Monitoring of Technical Sites

The HW group Perseus Monitoring 140 is a mid-size solution for remote monitoring of on-site environmental conditions via LAN. 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) or evaluated via the SensDesk portal with graphs, virtual sensors, device failure alerts and PDF reports. The Perseus 140 can also provide all measured values individually via the open API (SNMP, MQTT, Modbus/TCP, XML).

Sensors, Detectors and Other Network Devices in One System

The Perseus Monitoring 140 combines classic sensor connections with the evaluation of other devices on the same LAN.

🔌

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.

🧾

RS-485 (Modbus/RTU)

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

💧

WLD Water Leak Detection

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

🔗

4x DI / 2x DO

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

🌐

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 140 is available either as a pure base unit or as a complete temperature monitoring starter set.

⚠️

Please note: The base unit "Perseus Monitoring 140" includes neither a power supply nor sensors. Only the "Perseus Monitoring 140 Tset" variant is supplied with a power supply and a temperature sensor.

Perseus Monitoring 140

Perseus 140 unit for IT and industrial applications: metal housing, 4x DI, 2x DO (relays), 4x RJ11 (up to 8x60 m, 1 port = 1 sensor), 1x WLD zone, RS485 Modbus-RTU, Meters API. Power adapter or sensors are not included.

Perseus Monitoring 140 Tset

Perseus 140 temperature monitoring starter set. Includes: Perseus Monitoring 140, universal power supply 12V/1.5A and a Temp-1Wire-3m-IP67 temperature sensor.

How the Perseus Monitoring 140 Is Built

The robust metal housing measures approx. 145 x 135 x 38 mm (W x H x D) and weighs around 550 g, with protection class IP40.

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" for 1U racks available according to the manufacturer).

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

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.

4

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.

5

Power Supply

The Perseus 140 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).

6

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 LITE / STE2 R2, Poseidon2 4002, Damocles2 1208, 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 140 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

The Perseus Monitoring 140 offers both local and network-based 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 an external SMS gateway (e.g. SMS-GW3).

Portal Alarms (SensDesk)

Additionally e-mail, SMS, voice calls, device failure alert (Device Invalid Alert), alarm escalation and group alarms.

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 140 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 140 can optionally be connected to the SensDesk portal and thereby expanded with central evaluation and management functions.

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 140 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. Open the device’s IP address in the browser (initial search e.g. possible with HWg-Config)
  5. Connect 1-Wire UNI sensors to the RJ11 ports or Modbus/RTU sensors to the RS-485 terminal block
  6. Optional: wire the WLD sensor cable, dry contacts and relay outputs
  7. Optional: configure alarm rules, Lua scripts or the connection to SensDesk/HWg-cloud.com

Why the Perseus Monitoring 140 Is the Right Choice

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.

Flexible Alarming

Local, via e-mail/SNMP trap or via the SensDesk portal.

Robust Metal Housing

Designed for operating temperatures from -30°C to 85°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
  • Base stations (BTS) and greenhouses
💡

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 140. 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, and is sent to the responsible recipients according to an internal schedule.

Frequently Asked Questions

What is the HW group Perseus Monitoring 140 and what is it used for?

The Perseus Monitoring 140 is a LAN-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.

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

The base unit "Perseus Monitoring 140" includes neither a power supply nor sensors. The "Perseus Monitoring 140 Tset" variant additionally includes a universal power supply (12V/1.5A) and a Temp-1Wire-3m-IP67 temperature sensor.

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 140 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 140 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 140 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 140?

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

Videos
YouTube
Datasheets
Datasheet 1

Oops! Your browser doesn't support PDFs!

Datasheet 1 (529.91 KB)
Datasheet 2

Oops! Your browser doesn't support PDFs!

Datasheet 2 (10.56 MB)
Available Variants (Please select above)
  • Perseus 140:
    Base unit only - NO power supply included
  • Perseus 140 Tset:
    INCLUDES 12V 1.5A universal power supply
    Temp-1Wire 3m IP67 temperature sensor

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)

Meters API Support:

  • HWg XML
  • Modbus/TCP
  • MQTT
  • SNMP

Alarm Functions:

  • SNMP Trap
  • Email
  • SMS / Calls (with external SMS gateway)

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 85°C (-22°F to 185°F)
  • Enclosure: Metal, 35 × 111 × 140 mm
  • Warranty: 24 months

Sensors and Cables:

  • External water sensor cable up to 185m total length
  • 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
  • Pharmaceutical / HVAC environmental monitoring

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

Questions?

You have questions about HW group products?

You would like a quote?

Contact us