Querx PT

Pt100 / Pt1000 Network Thermometer and Data Logger

Querx PT is a web-based thermometer that supports any external Pt100 / Pt1000 temperature probe.

The smart sensor features an integrated data logger, alert functions and several interfaces that allow for manual or automated data access.

The device is controlled and configured via a graphical interface and can operate autonomously.

Querx PT supports various cloud services. This makes all data accessible globally at any time via web, app and API.

egnite - Querx PT - Pt100 / Pt1000 Network Thermometer and Data Logger
egnite - Querx Smart Sensor
Interactive Data Visualization

The web interface displays all tracked measurements in an interactive graph. The latest standards such as HTML5, CSS3 and SVG facilitate access to the interface via your PC, tablet or smartphone.

System Monitoring

Querx PT provides access to data via M2M-interfaces. SNMP support lets you integrate the sensor into network management systems such as Zabbix or Icinga. The device can also be applied in the industrial sector via SCADA systems, due to the integrated Modbus/TCP interface.

Data Export in Several Formats

Recorded measurements can be exported for further external processing and archiving. The CSV format is compatible with spreadsheet applications such as Excel. The XML format makes it possible to process data automatically in customized software solutions.

Accurate Temperature Sensors

Querx PT measures the temperature via external Pt100 / Pt1000 sensors. All data can be accessed via LAN.

Cloud connectivity

If required, all data can be transmitted to the Internet of Things services ThingSpeak and Xively. This lets you access your data globally and facilitates the integration into custom software systems via the interfaces provided by the cloud services.

Various Alerts

Querx PT can send emails, SNMP traps and Syslog messages to notify you if
-the temperature rises above or falls below configurable limits
-the temperature rises or falls exceptionally quickly
-the value returns to its normal range

Data Access via HTTP

All current and logged values can be retrieved in the XML, JSON and CSV file formats. This makes them accessible from the command bar and via Python, PHP or other programming languages.

Always up to Date

The Querx firmware is in continuous development and new functionality is frequently added. New versions are uploaded to the web periodically. You can determine which version your device is running and initiate an update right from the web interface.

Continuous Data Logging

The smart sensor saves the measured values once a minute. The minimum, maximum and average values are saved with a timestamp for at least 51 days and will not be lost, even if a power shortage occurs.

Mobile Apps

The Android and iOS apps Querx Discoverer and IoT Monitor provide access to all your recorded data from your smartphone.

Encrypted Email Alerts

Querx PT can notify up to four recipients of occurring alerts using two discrete email accounts. This ensures that alert notifications are sent even if one server fails.
The emails are encrypted (TLS / StartTLS).
The messages can be customized with text-variables, making them easily comprehensible.

Intuitive Operation via Web-Interface

Configuring and operating Querx PT is an intuitive process. The user interface is self-explanatory and a detailed online help section is also provided.

Quick Setup

Querx PT can be integrated into existing networks without any configuration being required. The smart sensor can be detected automatically by mDNS / Bonjour and it can be configured automatically via DHCP.

Querx PT
Extensive Selection of Sensors

Querx PT supports any 2-. 3- or 4- wire Pt100 or Pt1000 temperature sensors.
Temperatures in the range of -328 °F to 1382 °F can be measured, depending on the connected sensor. This makes the device suited to a wide field of applications.

Easy installation

The case's small footprint makes it possible to install the sensor in confined spaces.
It can be fastened easily by using the slits on the casing.

Accredited Calibration Available

Calibration is an integral part of quality control. DAkkS-certification (German Accreditation Body) is available for Querx devices for a service-fee and can be purchased when ordering the product or at a later date.

Low Power Consumption

Querx PT is very efficient. The power consumption is less than 1W.

Extended Temperature Range

Querx PT works reliably even in unfavourable conditions. The device can operate at temperatures between -40 °F and 185 °F (-40 °C - 85 °C).

Power Supply via USB

An unused USB port or an external power supply can be used to power Querx PT.

Querx PT Specifications

Temperature Sensor
Measuring range
(sensor dependent)
-328 °F to 1382 °F
(-200 °C to 750 °C)
(sensor dependent)
±0.9 °F

(±0.5 °C )
Resolution0.2 °F
(0.1 °C)
Hardware and Interfaces
Measurement rate1 second
Pt100 or Pt1000 connector2-, 3- and 4-wire
CalibrationDAkkS-certification available
Ethernet10/100 Mbit RJ45, HP Auto-MDIX,
static or dynamic IP (DHCP client)
SystemNut/OS 5
Firmware updatesVia web interface, recovery feature
Logging intervalConfigurable
M2MHTTP (XML, CSV, JSON), Syslog, Modbus/TCP, SNMP
Memory73.728 records, ≙
51 days (1 / min) to 8.4 years (1 / h)
Web interfaceInteractive diagram, live update, HTML5, CSS3, XML and SVG
SecurityStart/TLS, password protection,
user management (3 users / 3 groups)
EmailUp to 4 recipients via 2 SMTP servers (StartTLS / TLS)
SNMPSNMPv1 agent and traps
Status-LED3 colours: red, green, yellow
Date / timeBattery backed real-time clock and SNTP update
Power supply5 VDC to 5.5 VDC
Power consumptionTypically 120 mA 0,6 W, max. 200 mA 1 W

EmailUp to 4 recipients and 2 SMTP servers
SNMPSNMPv1 agent and traps
Status-LED3 colors: red, green, yellow
Time / DateReal-time clock with battery backup and SNTP update
Supply voltage5 V DC to 5.5 V DC via micro-USB
Power consumptionTyp. 120 mA, 0.6 W
Max. 200 mA, 1 W
Ambient Conditions
Operation-40 °F to 185 °F, max. 95 % RH
(-40 °C to 85 °C, max. 95 % RH)
Storage-40 °F to 185 °F, max. 95 % RH
(-40 °C to 85 °C, max. 95 % RH)
Casing materialABS plastic, black, RAL 9011
Casing dimensions2.2 x 1.6 x 0.8 in
(56.3 x 40 x 21 mm)
Sensor cable13.4 in
(340 mm)
Weight0.07 lb
(35 g)
Connectors RJ45 (Ethernet), micro-USB
InstallationWall mounting
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
Flammability ratingUL94V-0
Protection classIP20
RoHS standardEU Directive 2011/65/EU

Click here to access tutorials, current firmware versions amongst other things.
Querx Accessories
Accessories for special tasks and spare parts.
Querx sensors can be ordered from our international business partners.

Querx PT Order Details

    Querx PT100
    Querx PT100 with simple Pt100 probe without sensor sleeve
    Product number EGN600514
    Querx PT1000
    Querx PT1000 with simple Pt1000 probe without sensor sleeve
    Product number EGN600814
    Querx PT100 Set
    Querx PT100 with simple Pt100 probe without sensor sleeve + Ethernet cable, Micro-USB cable, USB power adapter (GB, EU, US or AU), documentation on CD
    Product number EGN600414
    Querx PT1000 Set
    Querx PT1000 with simple Pt1000 probe without sensor sleeve + Ethernet cable, Micro-USB cable, USB power adapter (GB, EU, US or AU), documentation on CD
    Product number EGN600714