HWT9053-RS485 | manual v0707 | http://wiki.wit-motion.com/english
2 Use Instructions with PC
2.1 Connection Method
PC software is only compatible with Windows system.
Link to HWT9053’s demo video
2.1.1 Serial Connection
Step 1. Connect the sensor with a serial converter
PIN Connection:
VCC - 5~36V
B - B
A - A
GND - GND
(VCC 5~36V is recommended for connection)