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Long-term stable temperature probes over years
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Room temperature probe Basic

€12.96 *

Prices incl. VAT plus shipping costs of 4,95 € to GER (incl. VAT)

Delivery time 3 Workdays to GER (AT, NL, BE +1 workdays)

Repeated order: check settings carefully and change if necessary.
1.Configure and order now
A - Measuring element

Bitte prüfen Sie, welches Messelement (Thermistortyp oder Pt) für Ihre Anwendung der Passende ist. Wichtige Informationen zum Messelement entnehmen Sie bitte den Kennlinien und Datenblättern. Diese finden Sie in der Langbeschreibung oder in unserem Download-Bereich.

keine Auswahl
(A012) Pt100 Class B
(A032) Pt1000 Class B
(A105) NTC 5 kOhm
(A110) NTC 10 kOhm
(A120) NTC 20 kOhm
(A421) KTY 81-210
2.How many probes do you need?
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A - Measuring element:  
Configuration is incomplete - please check it!
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  • Advice directly from experts
  • Quality directly from the manufacturer
  • Long-term stable temperature probes over years
  • B2B customers welcome: All information here
Questions about the article?
Our employee will be happy to help you:
Julian Mäntele
Tel.: +49 (0)7653 96 59 771
E-Mail: jmaentele@testo-sensor.de
Room temperature probes are used to enable room temperature-controlled heating and air... more
Product information "Room temperature probe Basic"

Room temperature probes are used to enable room temperature-controlled heating and air conditioning systems to respond quickly and reliably to temperature fluctuations. Testo Sensor offers various indoor temperature sensors with different sensor characteristics and housing designs.

Here you can find our downloads for the Room temperature probe Basic

pdf-download Data sheet Room temperature probe Basic
pdf-download Instruction manual Room temperature probe Basic
pdf-download Operating instruction Room temperature probe Basic
pdf-download Declaration of Conformity Room temperature probe Basic

Indoor probe - General Information

Measuring range -30 °C to +70 °C depending on the measuring element and the housing
Perm. temperature range housing -50 °C to +80 °C
Accuracy depending on sensor Type
Connection type 2-Wire
Response time t63 / t99: information is available on request

Indoor probe - Supply and output

Max. measurement current max. 1 mA
Supply voltage approx. 5 V depending on measurement current
Measurement signal passive (resistance value)

Indoor probe - Ambient conditions

Protection class IP20 according DIN 60529
Humidity and moisture condensation resistance according to application-specific qualification

Indoor probe - Certificates and Standards

Standards DIN EN 61326-1:2013 | DIN EN IEC 63000:2019-05
Directive RoHS 2011/65/EU | 2014/30/EU
Certificates Certificate of suitability (on request)

Indoor probe - Technical Drawing

A - Measuring element
All dimensions in mm

Indoor probe - Measuring element

Measuring element Perm. range °C Accuracy / Tolerance resistance
Pt100 -50 °C to +400 °C Class B dT = ±(0,30 °C + 0,005|t|)1}
Pt1000 -50 °C to +400 °C Class B dT = ±(0,30 °C + 0,005|t|)1}
NTC 5 kOhm -40 °C to +125 °C R25 = 5 KOhm ±1 %
NTC 10 kOhm -40 °C to +125 °C R25 = 10 KOhm ±1 %
NTC 20 kOhm -40 °C to +125 °C R25 = 20 KOhm ±1 %
KTY 81-210 -50 °C to +150 °C R25 = 2 KOhm ±1 %
1} according to IEC 751 / EN 60751 | The permissible measuring range depends on the measuring element and the housing.

Indoor probe - Housing

Material ABS
Dimension (L/W/H) (mm) 82 x 55 x 33
Color light grey
Clamping range (mm) 3 to 9
Electrical connection Screw terminals max. 1,5 mm²

Indoor probe - Delivery

Delivery and Packaging Probe, seperatly packaged in PE bag
Matching accessories Cable

Indoor probe - Important assembly advices

For accurate measurement of the room temperature, it is important to consider the temperature dynamics in the room. Air circulation should take place exclusively through the openings of the housing cover. Therefore, the probe should be installed away from objects or obstacles that shield air movements. Also, please be sure to avoid uncontrolled air currents (drafts) by installing near doors or windows (drafts). In addition, the probe should not be mounted on the colder outside wall.


Qualification measurement series to ensure the function of our temperature probes over their service life

Qualifizierungsmessreihe Robust even with temperature changes Temperature probes are exposed to harsh environmental conditions, such as changing temperatures and humidity, and should still work reliably in the field for 15 years or more. Checkmark
Qualifizierungsmessreihe Resistant to heat and humidity Extremely varying ambient conditions cause immense stress for the temperature probe and the design must be suitably robust and qualified.        
Qualifizierungsmessreihe Long-term stable in any weather Continuous exposure to sunlight, snow, fog, cold and ice shall not impair the function of the temperature probe and compliance with the specification.        
Qualifizierungsmessreihe Robust even under high vibration load Depending on the application, compressors and fans generate strong vibrations which are transmitted to components and cables. Therefore the used temperature probes have to be vibration resistant (20g). Checkmark
Qualifizierungsmessreihe Reliable in practice: high pull-out force The robust design ensures the necessary cable pull-out resistance, even under vibration and higher temperatures.        
Qualifizierungsmessreihe Efficient through short response time Depending on the application, short response times may be necessary to ensure efficient control of the system. Our sensor design is optimised for this requirement and we prove response times.        
Qualifizierungsmessreihe Corrosion-resistant even in salt spray Temperature probes are also used in coastal regions. For this reason, the temperature probes must also be able to withstand salty air for a lifespan of 15 years.        

Applicable for this probe type

Measuring element: KTY 81-210, NTC 5 kOhm, NTC 10 kOhm, NTC 20 kOhm, Pt100 Class B, Pt1000 Class B
Connection type: 2-Wire
industry: Air conditioning and ventilation technology, Building automation, Heating technology, Refrigeration
Temperature range: -30 °C to +70 °C
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