HEC303 3D Electronic Compass Sensor High-Precision

Place of Origin CHINA
Model Number HEC303
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
Azimuth Measurement Range 0~360° Azimuth Accuracy After Spatial Calibration ≤0.3°(RMS) (tilt Range -20°~20°)
Azimuth Resolution 0.01° Pitch Accuracy ≤0.2°(RMS)
Roll Accuracy ≤0.2°(RMS) Operating Temperature -40℃~70℃
Working Current ≤100mA Power Supply 5V DC
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High Precision Electronic Compass Sensor


HEC303 Electronic Compass Sensor


100mA Electronic Compass Sensor

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Product Description

HEC303 3D High-Precision Electronic Compass Sensor




HEC303 is specially designed to improve the static measurement accuracy of magnetic compass.It is composed of an industrial-grade single-chip microcomputer with high reliability and strong anti-interference ability, and a high-precision magnetic sensor and drive chip. At the same time, it integrates the hard magnetic and soft magnetic calibration algorithms of Bewis Sensing patented technology, and uses a three-axis accelerometer to compensate the tilt angle, so that accurate heading data can be provided in extremely harsh environments.


Performance Index:


Azimuth Measurement range 0~360°

After spatial calibration ≤0.3°(RMS)

(tilt range -20°~20°)

Resolution 0.01°
Repeatability 0.05°(RMS)
Pitch Measurement angle -90°~90°
Accuracy ≤0.2°(RMS)
Resolution 0.01°
Repeatability 0.05°(RMS)
Roll Measurement range -90°~90°
Accuracy ≤0.2°(RMS)
Resolution 0.01°
Repeatability 0.05°(RMS)
Environment Baud rate 9600~115200(Default 38400)


Electrical index:


Power supply 5V DC
Working current 不大于100mA
Operating temperature -40℃~70℃
Storage temperature -55℃~85℃


HEC303 3D Electronic Compass Sensor High-Precision 0

HEC303 3D Electronic Compass Sensor High-Precision 1




● Individual combat equipment

● Ocean test

● Underwater navigation

● Satellite tracking


BWSENSING's Accuracy Traceability System:

HEC303 3D Electronic Compass Sensor High-Precision 2


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.


HEC303 3D Electronic Compass Sensor High-Precision 3




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.