BMR3300 6-Axis High-Accuracy Electronic Compass Sensor RS232/RS485/TTL Optional

Place of Origin CHINA
Model Number BMR3300
Minimum Order Quantity 1 unit
Packaging Details BWSENSING BOX,Express package
Delivery Time 3-5 working days
Payment Terms T/T

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Product Details
Name Electronic Compass Heading Accuracy 0.2 RMS(Horizontal Use)<0.5 RMS(Pitch<30°)
Heading Resolution 0.001° Repeatability 0.05°
Hard Magnetic Calibration Yes Soft Magnetic Calibration Yes
Limited Tilt User Calibration Yes Output Form RS232/485/TTL
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6 axis magnetic compass sensor


magnetic compass sensor RS232


satellite Tracking high accuracy digital compass

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Product Description

BMR3300 6-axis High Accuracy Electronic Compass Accuracy0.2° RS232/RS485/TTL




BMR3000 is specially designed to improve the static measurement accuracy of magnetic compass. For fixed interference, it can still maintain high measurement accuracy. It can be customized according to customer needs, which can easily and quickly integrate the function of electronic compass into various products. It is composed of industrial grade single chip microcomputer with high reliability and strong anti-interference ability, high-precision magnetic sensor and driving chip.


Performance Index:



Compass heading parameter

Heading accuracy

0.2 RMS(Horizontal use)

<0.5 RMS(Pitch<30°)

Resolution 0.001°
Repeatability 0.05°

Compass tilt


Pitch accuracy 0.01°
Roll accuracy 0.01°
Resolution 0.001°
Tilt range ±45°
Calibration Hard magnetic calibration Yes
Soft magnetic calibration Yes
Limited tilt user calibration Yes



Size L74.9 x W30.5 x H10 (mm)
Weight 100g
Output form RS232/485/TTL interface



Start-up delay <3s
Maximum output frequency 50Hz
RS232 communication rate 2400 to 115200 baud rates
Environment Anti-vibration performance 2000g


BMR3300 6-Axis High-Accuracy Electronic Compass Sensor RS232/RS485/TTL Optional 0




● Individual combat equipment

● Ocean test

● Underwater navigation

● Mechanical control

● Satellite tracking

● Petroleum geological exploration

● Optical range finder

● GPS assisted navigation


BWSENSING's Accuracy Traceability System:

BMR3300 6-Axis High-Accuracy Electronic Compass Sensor RS232/RS485/TTL Optional 1


Company introduction

Wuxi Bewis Sensing Technology LLC(BWSENSING) is an innovative fast growing company established in 2010. The company was born in The Institute of Microelectronics (IME) of Peking University. We have achieved the top spot in the middle and high-end industry applications in the Chinese market.

From 2019, BWSENSING ® is approved as our global brand.With 10 years experience in the research-design-development and manufacture of a range of Inertial sensor technology, BWSENSING posses the skills, knowledge and experience to provide fully integrated OEM/ODM design and manufacturing services for Inclinometer, Electronic Compass, IMU, AHRS, GNSS/INS and Fiber Optic Gyroscope. As the company co-founder Dr. Guangyi Shi said, we will use the Accurate and Cost-effective sensors to make a greater contribution to the global society for a better IoT world.


BMR3300 6-Axis High-Accuracy Electronic Compass Sensor RS232/RS485/TTL Optional 2




Q1: Accuracy definition of products

A: RMS accuracy, the accuracy of each product can be traced.Accuracy test report can be provided if required.


Q2: How to select suitable model?

A: Users should check the following points:

a. Single or dual axis?

b. Commom protocol, Modbus or CAN?

c. Dynamic or static Application scenarios?

d. Horizontal or vertical installation?



Q3: How to purchase?

A: If you want sample, please purchase on BWSENSING online shop. We accept Paypal/TT/CC.If you purchase in bulk, it is recommended to consult the sales for the best price.


Q4: How long is the warranty period?

A: One year.


Q5: Precausions for using Electronic compass

A: Please refer to manual, and keep away from sensitive items like iron or motors, or even your cell phone;Electronic compass outputs magnetic north, not true north.


Q6: How to calibrate electronic compass?

A: a. Consult Sales about corresponding calibration videos.

b. It is divided into common calibration and 12 point calibration. The 12-point calibration is only for high-precision electronic compass.

c. Customized NMEA output.