Quick Setup

egnite Querx can be integrated into existing networks without any configuration effort and supports Zeroconf (mDNS, LLMNR) and DHCP.
WPS simplifies integration into WLAN environments, alternatively, mobile devices can be connected directly to Querx WLAN.

Simple Operation via Web Interface

Each Querx operates completely autonomously, no special gateways or software installations are required.
In the integrated web interface, the recorded measured values are available as interactive graphics for web browsers on the PC, tablet or smartphone.

Reliable Data Logging

Querx WLAN PT features a connection terminal for Pt100 / Pt1000 temperature sensors via a 2-, 3- and 4-wire circuit.
The measured values are securely stored in the device every minute for several years. Logging takes place even if the network connection is disrupted and the recorded data is not lost even in the event of a power failure.

The device provides the data via LAN or WLAN and can therefore also be used in locations without a cable network.

Diverse Alerts

Querx WLAN PT will notify when configurable warning and alarm limits for the temperature are breached, when values are rising or falling unusually fast, and when values return to normal.
Notification takes place selectively via email, SNMP trap, FTP transfer, HTTP push, MQTT or Syslog.

Data Export in Various File Formats

The network sensor can export data, making further processing and archiving simple.
The CSV format is suited for spreadsheet software such as Excel. JSON and XML formats support automatic further processing in custom software solutions. Freely configurable data formats also allow flexible adaptation to existing systems such as cloud servers.

The data export can be triggered manually as well as time- or event-controlled.

Suitable for Monitoring Systems

The sensor can be integrated into network management systems such as PRTG, Icinga or Zabbix via SNMP. Modbus/TCP allows the use with SCADA in the industrial sphere. All logged and current data can be accessed from Python, PHP and other programming languages via HTTP.

Long-term Security

If desired, data is transmitted encrypted via HTTPS respectively TLS. Own certificates can be installed for authentication. SNMPv3 is supported for secure network management.

The Querx firmware is continuously improved and adapted to current developments. New versions are put online from time to time. You can determine your currently loaded firmware version and start an update via the web interface.

Efficient Hardware

Even under adverse conditions, Querx functions reliably and even operates at temperatures between -40 °F and +185 °F (-40 °C and +85 °C).

At the same time, Querx WLAN is highly economical. The power consumption is approximately 1 W. Either a free USB port or an external power supply unit is used for power supply.

Accredited Calibration upon Request

Calibration is a vital component of quality control. With an ISO or DAkkS (German accreditation body) certificate, the measurement characteristics of the Querx network sensor can be documented.


Test the user interface and get an idea of the functions offered by the Querx sensors.

Specifications Querx WLAN PT


Hardware and Interfaces
Sensor port2-, 3- and 4-wire
Measuring range-328 to 1382 °F
(-200 to 750 °C)
±0.9 °F
(±0.5 °C)
Resolution0.1 °F
(0.1 °C)
Ethernet10/100 Mbit RJ45, HP Auto-MDIX, static or dynamic IP (DHCP, mDNS)
WLAN2.4 GHz IEEE 802.11 b/g/n
SecurityWEP, WPA, WPA2, TLS 1.2, provision and verification of certificates, user management (3 users / 3 groups)
Firmware updatesVia web interface, recovery feature
Data memory4 million entries, sufficient for at least 7 years
M2M interfacesHTTP/S, Modbus/TCP, MQTT, SNMPv1/v3, FTP
Web interfaceInteractive diagram, live update, data export
EmailUp to 4 recipients and 2 SMTP servers
SignallerRGB LED, beeper
Time / DateReal-time clock with battery backup and SNTP update
Supply voltage5 V DC via micro-USB
Power consumptionTyp. 200 mA, 1 W
Max. 300 mA, 1.5 W
Ambient Conditions
Operation-40 to 185 °F, max. 95 % RH
(-40 to 85 °C, max. 95 % rF)
Storage-40 to 185 °F, max. 95 % RH
(-40 to 85 °C, max. 95 % rF)
Mechanical data
Casing materialABS plastic, black, RAL 9011
Casing dimensions2.6 x 2 x 0.8 in
(66 x 50 x 21 mm)
Sensor cable13.4 in
(340 mm)
Weight0.2 lb
(63 g)
Connectors RJ45 (Ethernet), micro-USB
InstallationWall mounting
CalibrationDAkkS or ISO certificate optionally available
Interference immunityEN 61326-1:2013 Class A
EN 61000-4-2:2009
EN 61000-4-3:2011
EN 61000-4-4:2013
EN 61000-4-6:2009
EN 61000-4-8:2010
Emitted interferenceEN 61326-1:2013 Class B
EN 55011:2011
ETSIEN 300 328, Ver. 1.8.1
EN 301.489 - 17
Flammability ratingUL94V-0
Protection classIP20
RoHS standardEU Directive 2011/65/EU

Support + Downloads

Related Links

Latest Firmware



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English, German



Querx WLAN PT100

Querx WLAN PT100
Simple Pt100 probe without sensor sleeve

Order number: EGN601415

to the egnite Shop

Querx WLAN PT100 SET

Querx WLAN PT100
Simple Pt100 probe without sensor sleeve
Ethernet cable
Micro-USB cable
Micro-USB power adapter with plugs for EU, UK, US, AU

Order number: EGN601315

to the egnite Shop

Querx WLAN PT1000

Querx WLAN PT1000
Simple Pt1000 probe without sensor sleeve

Order number: EGN601715

to the egnite Shop

Querx WLAN PT1000 SET

Querx WLAN PT1000
Simple Pt1000 probe without sensor sleeve
Ethernet cable
Micro-USB cable
Micro-USB power adapter with plugs for EU, UK, US, AU

Order number: EGN601615

to the egnite Shop