SEC340 Cost-Effective 3D Electronic Compass Sensor

Place of Origin CHINA
Model Number SEC340
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 Power Voltage 5V DC
Operating Temperature -40℃~85℃ Heading Accuracy 1°(RMS)
Resolution 0.1° Repeatability 0.3°
Start-up Delay <3s Dimension L33 X W27 X H5 (mm)
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5V DC Electronic Compass Sensor


lination Compensation Electronic Compass Sensor


Optical rangefinder electronic compass module

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Product Description

SEC340 Cost-Effective Inclination Compensation 3D Electronic Compass Underwater Navigation Optical rangefinder



SEC340 integrates a three-axis magnetic sensor. When calculating the heading in real time through the central processor, the three-axis accelerometer is used to compensate the inclination angle, so that it can provide accurate heading data in a very harsh environment. Sec340 supports RS232, RS485 and TTL level output interface. It can meet the needs of different application scenarios, and can easily and quickly integrate the functions of electronic compass into various systems.


Performance Index:


Compass heading parameters Heading accuracy 1°(RMS)
Resolution 0.1°
Repeatability 0.3°
Compass tilt parameters Pitch accuracy 0.1º
Roll accuracy 0.1º
Resolution 0.01°
Tilt range ±40°
Calibration Hard magnetic calibration Yes
Soft magnetic 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


SEC340 Cost-Effective 3D Electronic Compass Sensor 0






● Individual combat equipment

● Marine survey

● Underwater navigation

● Mechanical control

● Satellite tracking


BWSENSING's Accuracy Traceability System:


SEC340 Cost-Effective 3D Electronic Compass Sensor 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.


SEC340 Cost-Effective 3D Electronic Compass Sensor 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.