TQS3 O: Outdoor RS485 Thermometer

A digital thermometer for RS485; outdoor design with IP65 protection. It measures temperatures in the range from -55 to +125°C and the measured value is sent in degrees Celsius. The thermometer has ve...more information
This product includes:
TQS3 O - Outdoor RS485 Thermometer
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Order CodeTQS3_O_1Warranty36 monthsCustoms Code90251900Weight102 gCountry of originCZMakerPapouch.com

A digital thermometer for RS485; outdoor design with IP65 protection. It measures temperatures in the range from -55 to +125°C and the measured value is sent in degrees Celsius. The thermometer has very low consumption and communicates via Spinel or MODBUS protocols. The TQS3 intelligent temperature sensor can be connected to other modules by a single bus, which can be up to 1200 m long.

New feature: The users can now switch between the Spinel and Modbus RTU communication protocols using ModbusConfigurator software.

The thermometer communicates via RS485 using the Spinel or MODBUS RTU protocol. In the case of Spinel protocol, the thermometer can be connected to a joint communication link with other devices of our company – most of our devices communicate via the Spinel protocol. TQS3 can communicate via the binary as well as ASCII format of the Spinel protocol. ASCII format is very simple – the instructions can be sent and the measured values read to/by some of the many terminals for serial communication. For machine processing, it is preferable to use the binary format of the protocol. For both versions, the documentation provides specific examples.

In the case of communication by the MODBUS RTU protocol, the thermometer can be easily integrated into the systems that communicate via this industrial protocol.

Opened TQS3 O and the optional wall holder

Open TQS3 O and look on the underside of the option holder on the wall

Features of RS485 thermometer

  • Thermometer measuring temperatures from -55 to +125°C.
  • 0,1°C resolution
  • Accuracy ±0,5°C from -10 to +85°C, otherwise ±2°C
  • Communication line RS485 - up to 32 devices can be connected on a single bus (even more when a repeater is used)
  • Outdoor make with a sensor in a metal rod. Normalised diameter 6mm.
  • Spinel or MODBUS RTU communication protocol (to be selected by the user; the factory default setting is the Spinel protocol)
  • Low power requirements (typically 2 mA)
  • Wago terminal connection


TQS3 thermometer: Connection to RS232 or USB

Example of TQS3 connected to a PC through USB or COM port.

TQS3 thermometer: Connection to Ethernet

Example of TQS3 connected to a computer network (Ethernet, Internet).

Converter: USB connection is provided by SB485. To connect RS485 to the Ethernet, GNOME485 can be used.

Power: To power all converters and thermometers 12V DC PSU is enough for most cases.

Connection wires: To connect thermometers, power supply and converter, TP cable (Cat5e) is recommended. Use one pair for RS485, and other wires for power supply.

Software: To watch and log the temperatures from TQS3 sensors, Wix software can be used (freeware). Other option is user made software. The protocol is well documented and very simple.

Versions of the TQS3 thermometer

Versions of the TQS3 thermometer (left to right): TQS3 I, TQS3 O, TQS3 P, TQS3 E.



Complete datasheet (manual). Including Spinel and Modbus RTU protocol documentation.

File size: 1 MB

Date: 07-26-2018



Wix - Free version of measurement software, version
Software for measurement, storing values, controlling and viewing measured-out values from Papouch s.r.o. devices (or others if integrated with for example MODBUS).
(Restrictions in the free version can be removed by purchasing a license.)
Go to Wix main page...

File size: 3.1 MB

Date: 08-31-2018



Simple utility to set-up address and communication speed of your devices with Spinel protocol. Version 2.0 with added features and functions

File size: 339 kB

Date: 06-22-2017



Searching utility. This will search your RS485 line and find all devices with Spinel protocol you have connected. It can also switch TQS3 to TQS1 mode and vice versa.

File size: 506 kB

Date: 03-11-2011


sw-modbus-configurator.zipModbus Configurator

Software designed for switching communication protocols in our devices, primarily between Spinel and Modbus RTU.
ModbusConfigurator homepage...

File size: 637 kB

Date: 08-21-2018


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