Waterproof NTC Temperature Sensor Thermistor 10K 1% 3950

Code: LA131103A LA131103B LA131103C Choose variant
The average product rating is 5,0 out of 5 stars. 6 ratings Rating details
€0,95 €1,15 €1,56 from €0,95 €0,79 excl. VAT €0,95 excl. VAT €1,29 excl. VAT from €0,79 excl. VAT Measure price:
In stock (387 pcs) In stock (369 pcs) In stock (393 pcs) Choose variant
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21/10/2026 21/10/2026 21/10/2026 Choose variant

This waterproof temperature sensor with an NTC thermistor is the ideal choice for measuring the temperature of liquids, surfaces, or outdoor environments.

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Product detailed description

This waterproof temperature sensor with an NTC thermistor is the ideal choice for measuring the temperature of liquids, surfaces, or outdoor environments. The probe features a durable enclosure that withstands continuous contact with water, and depending on the chosen variant, the 1, 2, or 3 metre cable allows you to place it exactly where needed. The sensor serves as both a replacement and an expansion probe for W1209 and W1401 series digital thermostats, or can be connected to Arduino, ESP32, or any other platform with an analogue input using a simple voltage divider with a 10 kΩ resistor. The cable is terminated with a JST-XH 2P connector, making the connection a matter of seconds.

Specifications:

  • Sensor type: NTC thermistor (resistance decreases as temperature rises)
  • Nominal resistance: 10 kΩ at 25 °C
  • Resistance tolerance: ±1 %
  • B-constant (Beta): 3950 K ±1 % (standard 10K 3950)
  • Measuring range: -20 °C to +105 °C
  • Dissipation coefficient: approx. 5 mW/°C
  • Probe insulation resistance: > 100 MΩ
  • Probe protection: waterproof enclosure
  • Dimensions:
    • Probe: 5 × 25 mm
  • Connector: JST-XH 2P
  • Suitable for:
  • Compatibility: Arduino, ESP32, ESP8266, Raspberry Pi Pico and other platforms with an analogue input (ADC)
  • Variants (cable length):
    • 1 m
    • 2 m
    • 3 m

Package contents:

  • 1× waterproof temperature sensor NTC Thermistor 10K 1% 3950 (according to the chosen variant)

Note:

  • This product is not a standalone functional unit and may require professional installation.
  • Product images are for illustrative purposes only and may sometimes differ from the actual appearance of the item. However, this does not change their basic properties.

Additional parameters

Category: Temperature, humidity and pressure sensors
Warranty: 2 years
Output: Analog
Sensor type: Temperature

Product rating

The average product rating is 5,0 out of 5 stars. 6 ratings
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List of ratings

5
PP Avatar of author The product rating is 5 out of 5 stars. 30/04/2026
Použil jsem do VZT rekuperační jednotky a funguje bez problémů.
5
BD Avatar of author The product rating is 5 out of 5 stars. 17/05/2022
Použil jsem čidlo do kotle Protherm. Funguje naprosto bez problémů. Oproti originálu jsem ušetřil přes 250 Kč. Spokojenost.
5
JB Avatar of author The product rating is 5 out of 5 stars. 13/11/2021
To co jsem potřeboval
5
MK Avatar of author The product rating is 5 out of 5 stars. 20/09/2021
Dělá přesně to co má. Čidla jsem použil k serveru Loxone, funguje bez problémů.
5
PC Avatar of author The product rating is 5 out of 5 stars. 25/08/2021
Bez výhrad
5
LŠ Avatar of author The product rating is 5 out of 5 stars. 21/09/2020
Naprosto spokojen

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