Web Thermometer, Hygrometer and Data Logger
Querx TH measures temperature and humidity precisely and calculates the dew point.
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 web interface and can operate autonomously.
Querx TH supports various cloud services. This makes all data accessible globally at any time, via web, apps and APIs.
Reliable Data Tracking
Querx TH tracks temperature-, humidity- and pressure-values and calculates the dew point. All data can be accessed via LAN.
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 25 days and will not be lost, even if a power shortage occurs.
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.
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.
Querx TH 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 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.
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.
Querx TH can send emails, SNMP traps and Syslog messages to notify you if - the temperature, humidity or dew point rises above or falls below configurable limits - the temperature, humidity values rise or fall exceptionally quickly - the values return to their normal range
Encrypted Email Alerts
Querx TH 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 TH is an intuitive process. The user interface is self-explanatory and a detailed online help section is also provided.
Querx TH 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 TH features integrated temperature-, humidity- and air pressure sensors.
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 when purchasing the product or at a later date.
Extended Temperature Range
Querx TH works reliably even in unfavourable conditions. The device can operate at temperatures between -40 °F and 185 °F (-40 °C - 85 °C).
Low Power Consumption
Querx TH is very efficient. The power consumption is less than 1W.
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.
|Measurement range||-40 °F to 185 °F
(-40 °C to 85 °C)
|Accuracy ||±0.7 °F at 14 to 185 °F
±1.8 °F at -40 to 14 °F
(±0.4 °C at -10 to 85 °C)
(±1.0 °C at -40 to 10 °C)
|Long term stability||Typ. 0.018 °F
|Measurement range ||0 % to 95 % RH|
|Accuracy||3 % RH at 20 to 80 % RH and 86 °F (30 °C)
1 % RH Hysteresis
|Resolution||1 % RH|
|Long term stability||Typ. 0.25 % per year|
|Sensor type||CMOS IC with polymide film|
|Hardware and Interfaces|
|Calibration||DAkkS-certificate optionally available|
|Ethernet||10/100 Mbit RJ45, HP Auto-MDIX, static or dynamic IP (DHCP client)|
|Firmware updates||Via web interface, recovery feature|
|Sampling rate||1 second|
|M2M interfaces||HTTP (XML, CSV, JSON), Syslog, Modbus/TCP, SNMP|
|Memory capacity||73.728 records, ≙ 51 days (1 entry / min) to 8.4 years (1 entry / h)|
|Web interface||Interactive diagram, live update, HTML5, CSS3, XML and CSV export|
|Security||StartTLS / TLS, password protection, user management (3 users / 3 groups)|
|Up to 4 recipients and 2 SMTP servers|
|SNMP||SNMPv1 agent and traps|
|Status-LED||3 colors: red, green, yellow|
|Time / Date||Real-time clock with battery backup and SNTP update|
|Supply voltage||5 V DC to 5.5 V DC via micro-USB|
|Power consumption||Typ. 120 mA, 0.6 W
Max. 200 mA, 1 W
|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 material||ABS plastic, black, RAL 9011|
|Casing dimensions||2.2 x 1.6 x 0.8 in
(56.3 x 40 x 21 mm)
|Sensor cable||13.4 in
|Connectors||RJ45 (Ethernet), micro-USB|
|Interference immunity||EN 61326-1:2013 Class A
|Emitted interference||EN 61326-1:2013 Class B
|RoHS standard||EU Directive 2011/65/EU|
Querx THQuerx TH with integrated sensors for temperature, humidity
Order number: EGN600214
140.00 EUR excl. VAT
166.60 EUR incl. 19% VATto the egnite Shop
Querx TH SETQuerx TH with integrated sensors for temperature, humidity
Micro-USB power adapter with plugs for EU, UK, US, AU
Order number: EGN600114
155.00 EUR excl. VAT
184.45 EUR incl. 19% VATto the egnite Shop