Index >> Products >> Monitoring

HWg-STE PoE: Termómetro SNMP

HWg-STE PoE es el web termómetro permitiendo IP con SNMP y las alertas de Email. Mide la temperatura y humedad por dos sensores externos. Propulsado a través de Ethernet o del taco adaptador.

Note: Shorted version - full details in english version.

HWg-STE PoE web termómetro es configurado usando web server integrado. Cuando la temperatura (humedad) sobrepasa el umbral específico, la alerta de email está enviada. Incluye el HWg-PDMS software de monitorización para crear gráficos y exportar los datos a MS Excel.

  • HWg-STE IP termómetro está completamente SNMP compatible.
  • PoE monitorea la temperatura, E-mail alerta el recalentamiento o la caída de temperatura
  • Incluye Windows software, fuente de alimentación de CA y sensor de temperatura
  • Instalación simple, soporta DHCP & PoE (IEEE 802.3af)

Las aplicaciones típicas incluyen la remota monitorización de temperatura del equipo, ordenadores o array de discos, o la monitorización de la operación de HVAC.

Optional accessories:

  • Humidity probe
  • Temperature and humidity probe for installation in a 19" rack
  • Waterproof, stainless-steel temperature probe, -50°C to +125°C (-58°F to +257°F)
  • Fridge / Icebox temperature probe, flat cable, -30°C to +60°C (-22°F to +140°F)
SNMP teploměr, poe dohled teploty, teploměr s napájením přes ethernet, PoE čidlo teploty, IEEE 802.3af, teplota, vlhkost

The device   Rear view  Side view

Paper Box  Package contents    

Web interface
  MS Excel report



  • Remote rack monitoring
    Temperature / humidity monitoring inside and outside of a rack (cabinet), SNMP monitoring, PoE (Power over Ethernet - IEEE 802.3af).

  • Air conditioning failure
    Temperature monitoring; rising temperature indicates cooling fault.
    HWg-STE power over ethernet thermometer is easy to install.

  • Heating system monitoring
    Remote monitoring of a heating system, alert by e-mail or SMS (Email-2-SMS) to a danger of freezing.
    Temperature report to MS Excel available.

  • Cooler/freezer monitoring
    Sends an e-mail if the cooler malfunctions. Logs operating and storage conditions. Temperature reports.

  • Heating optimization
    Web PoE thermometer saves heating and air-conditioning costs. Temperature reports for MS Excel.

  • Food storage
    Monitors optimal storage conditions. With application software, HACCP reports can be created.


STE models comparison

HWg-STE plus
LAN Interface
WiFi Interface (internal antenna)
PoE (IEEE 802.3af) support
External sensors (data points) that can be connected
Combined temperature + humidity sensor counts as 2 sensors.
3 (2x RJ11) 2 (2x RJ11) 2 (2x RJ11)
Temperature & Humidity sensors (1-Wire)
Digital Inputs (for Dry Contacts) 2 2
HWg-SMS-GW support
HWg-Push protocol (required for
SNMP protocol (port 161)
SNMP protocol (port 162)
Retail package
Power adaptor, CD, STE device, temperature sensor included
Ordering quantity single units, 30-pack single units, 10-pack 10-pack, 30-pack

Características básicas

  • Instalación simple: soporta DHCP y autodetección de sensor
  • Estándar de SNMP: conecta con NMS (SNMP MIB)
  • Precisión: Temperatura con resolución de 0.1°C, visualizado en °C o °F (Humedad: 0.1 %RH)
  • Alertas: envía e-mail, cuando la temperatura (humedad) es muy alta / muy baja 
  • Seguridad: protegido por contraseña
  • Incluido en el paquete estándar:
    • adaptador
    • sonda de temperatura en el cable de 3m -10°C a 80°C (+14°F a +176°F)
  • Accesorios opcionales (segundo sensor):
    • sensor de humedad (versión de pared / rack / cable)
    • sensor de temperatura en interior (versión de pared / rack / cable)
    • sensor de temperatura en exterior, rango -50°C a 125°C (-58°F a +257°F)
    • sensor de temperatura con el cable flat para nevera / congelador
  • HWg-STE PoE SNMP termómetro, PoE monitorización de temperatura, PoE termómetro, suministro de energía a través de ethernet termómetroEthernet: RJ45 (100BASE-T)
  • Alimentado a través de IP (estándar de PoE IEEE 802.3af), o de adaptador suministrado
  • Web: Web server integrado
  • MT web: web página de index disponible también en el formato para los navegadores de teléfonos móviles
  • Protocolos de comunicación de M2M : SNMP (161), XML (solamente para leer)
  • Energía:
    • HWg-STE: adaptador
    • HWg-STE PoE: PoE (IEEE 802.3af) + adaptador (depende de tipo)
  • Software soportado
    • Configuración: UDP Config  - configuración de la dirección de IP y detección (con DHCP)
    • HWg-PDMS: registración de valores, gráficos, exportación a MS Excel, reportes
    • CapTemp: Visualización en mapa, control de salidas, reenvío de alarma a SMS
    • SNMPcap: valores de sensor & visualización de dispositivos
  • For programmers: HWg-SDK contains interface descriptions and examples of using M2M protocols in several programming languages
    (JAVA, PHP, Borland C++ Builder 6.0, Microsoft Visual C++ 6.0, Borland Delphi 6.0, Microsoft Visual Basic & Excel VBA, VB.NET, C code for Linux, JavaScript (AJAX) Microsoft Visual C# 2005 (.NET)

Monitoring software


PDMS: Excel reportingHWg-PDMS (Poseidon-Damocles Monitoring System) periodically collects input and sensor values from units connected to a LAN (Poseidon, Damocles, HWg-STE). Collected data are periodically saved as MS Excel reports.

  • Registered version is free of charge for 3 sensors
  • Collects data over a LAN (using http from the device IP address / by e-mail)
  • Data collection runs in the background as a Windows service
  • Graphical overview of the collected data
  • Temperature report for MS Excel (runs periodically in the background - generate XML database)


Compatible 3rd party SNMP software

HWg-STE PoE SNMP , Thermomètre IEEE 802.3af PoE thermomètre, PoE temperature sensor, PoE

  • ActiveXperts NM (Network Monitor)
  • Axence nVision
  • CA Unicenter NSM R11
  • Cacti
  • CBR little:eye
  • GFi NSM (Network Server Monitor)
  • HP OpenView NNM
  • IBM Tivoli
  • Intellipool INM
  • Ipswitch WhatsUp
  • LoriotPro (LUTEUS)
  • ManageEngine OpManager
  • Microsoft MSC Operations Manager 2007 & MSC Essentials 2007
  • Monitor one (M1)
  • Nagios (special plugin)
  • Paessler IPCheck
  • SNMPc 7 - Castle Rock Computing SNMPc 7
  • The Dude (Microtik)
  • Zabbix

>> 3rd party monitoring SNMP software

Frequently Asked Questions

    Ask for the price or details:
     - Web:  http://
    Country: *

    Spam protection. How many is SIX times six?

  • It is possible to power the HWg-STE PoE using a power adaptor?
    Yes, you can use a standard Power over Ethernet switch or the supplied power adaptor.
  • How can I plot the temperature in a graph?
    Use the supplied free HWg-PDMS temperature monitor software. It's fully compatible with HWg-STE web thermometer.
  • Where can I find the MIB file for connecting with my SNMP software?
    The "HWg-STE.mib" file is available at the "System" page. Simply save it and import it into your SNMP software.
  • Which SNMP version is supported.
    HWg-STE is SNMP monitor compatible with SNMP v1 & SNMP v2.
  • Where can I find SNMP Trap settings?
    HWg-STE does not support SNMP Traps (port 162). Only SNMP at port 161 is supported.
    Use any Poseidon or Damocles products, there are SNMP Traps supported.
    If you need SNMP Trap functionality in HWg-STE for any bigger project, contact us.
  • Can I use HWg-STE without a SNTP server?
    Yes, of course. SNTP server is used to synchronize time and to initialize the clock after power up. However, the time shown in STE e-mails will be incorrect.
  • How can I connect a door contact?
    The HWg-STE IP thermometer supports only temperature and humidity probes. To connect a Dry contact, use e.g. Poseidon 3266, or contact a HWg distributor with your requirements.
  • How can I create a protocol (reports) with recorded temperatures?
    Use the supplied HWg-PDMS software. Logged values can be displayed or exported to MS Excel.
    Temperature and Humidity reports are produced on background, you can analyze data with your own excel formulas.
  • The SNMP thermometer only works when powered from the wall plug adaptor. Why doesn't PoE work?
    On most PoE switches, you need to manually enable PoE power for each individual port. Please make sure that you have enabled PoE for the port where HWg-STE PoE is connected.
  • Where can I find the prices of your devices?
    Ask our distributors, or request a quote directly from us using the form at this page.


Ordering numbers


OID Description
Quote HWg-STE PoE (photo)
PoE SNMP web thermometer package. Contains an AC adapter, a temperature probe on a 3m cable, and CD with software. PoE support (IEEE 802.3af).
Quote HWg-STE (photo)
Standard web thermometer contains an AC adapter, a temperature probe on a 3m cable, and CD with software.



  • temperatureoutdoor temperaturetemperature and humidity probe for Ethernet thermometer Temp-1Wire (temperature probes for SNMP thermometer)
  • Ethernet thermometer humidity accessories Humid-1Wire Ethernet thermometer humidity accessories (humidity probes / combined temperature-humidity probes)
    Can be connected to HWg-STE PoE temperature monitor.

Palabras claves

HWg-STE PoE SNMP termómetro, PoE monitorización de temperatura, PoE termómetro, suministro de energía a través de ethernet termómetro, IEEE 802.3af, monitorización de temperatura, snmp de temperatura, cuarto de ordenadores, monitorización de server
PoE termómetro, PoE sensor de temperatura, PoE, snmp, alerta de email, poe temperatura, reporte de temperatura, poe humedad



Related products

  • Poseidon model XXXX - Overview of Poseidon models
  • HWg-WLD - Water Leak detection with sensing cable up to 85m
  • HWg-STE – web thermometer/hygrometer with SNMP
  • HWg-STE plus: Ethernet thermometer with Digital Inputs
  • STE2: WiFi and Ethernet Thermometer with Digital Inputs