Force sensor RA18P-DIY - 4kg round 18mm

Index: MRV-12157 EAN: 5904422318789

Pressure sensor reduces its resistance when the force put to the round tip, increases. The sensor is round with a diameter of 15 mm, overall width of 18 mm and the maximum pressure of 4 kg.

Force sensor RA18P-DIY - 4kg round 18mm
€11.30 tax excl.
Discontinued product
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Pressure sensor 4kg - size:
Manufacturer: Marveldex


The product has been discontinued. Check other products in category.


The sensor reduces its resistance when the force put to the tip, increases. Due to this phenomenon, and the use of microcontroller with analog to digital converter, you can build a sensor that measures the force of pressure. The measurement can be displayed, for example, on the LCD display.

podłączenie czujnika nacisku RA18P-DIY

Diagram of connection withArduino.

Wiring diagram

The sensor has eight Vin and the ADC pins. For correct operation, the wire must be connected appropriately using any of the 4 deisgned for pins, fields. The sensors can be connected with each other.

Wyprowadzenia czujnika RA18P-DIY

Schemat podłączenia RA18P-DIY

A graph of the resistance from the applied force

Wykres rezystacji RA18P-DIY

The product is compatible with Arduino

The manufacturer provides acode examplefor Arduino.


  • Response time: < 10 µs
  • Operating temperature: -20 to 60 °C
  • Storage temperature: -30 °C to 60 °C
  • Operating humidity: up to 90 %
  • Current consumption: 5 mA to 20 mA
  • The output resistance range: from ∞ to 200 Ω
  • Mechanical tolerance: 50 µm
  • Temperature effect: 10 %
  • Influence of humidity: 20 %
  • Output tolerance: max. 20 %
  • Measuring range: from 5 g to 4 kg
  • Size: 18,65 x 18,32 x 1.35 mm
  • Sensor's diameter: 8 mm

Package width 6 cm
Package height 0.1 cm
Package depth 10 cm
Package weight 0.001 kg

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Product reviews

Force sensor RA18P-DIY - 4kg round 18mm


Average grade


Customers opinion
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and come from the post-purchase process.
Krystian 12.09.2022 Confirmed purchase Translated review
In addition to not very accurate measuring the pressure force, the sensor proved to be perfect in the design.

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