SEC380 3D High-Precision Cost-Effective Electronic Compass Sensor RS232/RS485/TTL Optional

Place of Origin CHINA
Model Number SEC380
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 1°(RMS)
Resolution 0.1° Repeatability 0.3°
Hard Magnetic Calibration Yes Soft Magnetic Calibration Yes
Dimension L55 X W37 X H24 (mm) Start-up Delay <3s
High Light

Electronic Compass Sensor RS232


Electronic Compass Sensor RS485


high precision digital compass Resolution 0.1

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Product Description

SEC380 High-Precision Cost-Effective Inclination Compensation 3D Electronic Compass RS232/RS485/TTL Optional



SEC345 is a cost-effective three-dimensional electronic compass, which can meet the needs of different application scenarios. It can easily and quickly integrate the functions of the electronic compass into various systems. The product adopts the patented hard iron and soft iron calibration algorithm, so that it can still provide high-precision heading information when its inclination reaches 40 °. It has the advantages of small volume and low power consumption.


Performance Index:


Compass heading parameters Heading accuracy




Resolution 0.01°
Repeatability 0.1°
Compass tilt parameters Pitch accuracy 0.1º
Roll accuracy 0.1° for pitch <80°
Resolution 0.01°
Tilt range ±80°
Calibration Hard magnetic calibration Yes
Soft magnetic calibration Yes
Limited tilt user calibration Yes



Dimension L33 x W27 x H5 (mm)
Weight 25g
Output form RS232/485/TTL interface
Interface characteristics Start-up delay <3s
  Maximum output frequency 50Hz
  RS232 communication rate 2400 to 115200 baud rate
Environment Anti-vibration performance 2000g







● Petroleum geological survey

● Optical rangefinder

● GPS assisted navigation

● Individual combat equipment

● Marine survey

● Underwater navigation


BWSENSING's Accuracy Traceability System:


SEC380 3D High-Precision Cost-Effective Electronic Compass Sensor RS232/RS485/TTL Optional 0

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.


SEC380 3D High-Precision Cost-Effective Electronic Compass Sensor RS232/RS485/TTL Optional 1




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.