Precise measurement every time

RM3100 Magnetic Sensor

PNI’s proprietary Magneto-Inductive sensor technology provides high resolution, low noise, low power consumption and large dynamic range.


Impeccable signal to noise, no drift, and precise magnetic field measurements make integration of the RM3100 sensor simple and perfect for any application.


No drift, low noise, high sensitivity and no hysteresis.


Stable and reliable over time and temperature.


I2C and SPI interfaces.


Proven in real world across a wide range of applications.

Technical Specifications

Cycle Counts
Field Measurement Range± 1100 µT
Noise30 nT20 nT15 nT
Gain @ 3V (LSB/µT)20 µT38 µT75 µT
Linearity over ± 200 µT0.5% (typical)
Sensitivity50 nT26 nT13 nT
Max 3-Axis Sample Rate534 Hz284 Hz147 Hz
Current Usage @ 8 Hz, 3 Axes70 µA 135 µA260 µA
Circuit Oscillation Frequency180 kHz
InterfaceSPI and I2C
Operating Temperature Range-40°C to +85°C
Size (L x W x H)SEN XY
RM3100 Breakout Board
6.0 x 2.1 x 2.2
3.88 x 2.98 x 6.35 mm
4.0 x 4.0 x 0.75 mm
25.4 x 25.4 x 7.1 mm

Downloads for RM3100

Sensor Suite User Manual

Testing Boards User Manual

Try our products for yourself

Order one of our Evaluation Kits and try out our products and amazing technology for yourself.

Ask our experts

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(707) 566-2260



2331 Circadian Way
Santa Rosa, CA 95407