1. Operating voltage: 4.75V–13.20V
2. Operating current:
   - Average operating current: < 5mA @ 5V
   - Peak transmission current: < 45mA @ 5V
3. Oxygen concentration measurement range: 21%–95.6%
   - Resolution: 0.1%
   - Accuracy: ±1.8% @ 5°C–45°C
4. Flow rate measurement range: 0–10 L/min
   - Resolution: 0.1 L/min
   - Accuracy: ±0.2 L/min or ±5% of reading (whichever is greater) @ 5°C–45°C
5. LED output interface:
6.  Green  Oxygen concentration ≥ 82%
7.  Yellow  50% < Oxygen concentration < 82%
8.  Red  Oxygen concentration ≤ 50%
9. Operating temperature: 5°C–50°C
10. Built-in temperature compensation
11. Communication interface: UART (baud rate: 9600 bps, 8-N-1)
12. Factory calibrated

This module integrates two ultrasonic transducers and a flow tube. Oxygen concentration and flow rate are calculated by measuring the upstream and downstream transit time of ultrasonic signals transmitted and received by the transducers. Measurements are performed automatically every 500 ms.

Connector List

Name	Type	Description
J1	PH2.0-3P	Power input connector
J2	PH2.0-4P	Digital signal output connector
J3	XM2.54-5P	Programming connector
J4	PH2.0-4P	LED indicator output connector (reserved)
J5	XM2.54-4P	Production testing connector

Connector	Pin	Name	Description
J1	1	GND	Ground
	2	NC	—
	3	VIN	Module power input
J2	1	VIN	Module power input
	2	RX	UART receive pin
	3	TX	UART transmit pin
	4	GND	Ground
J4	1	R	Red LED output (O2 ≤ 50%)
	2	Y	Yellow LED output (50% < O2 < 82%)
	3	G	Green LED output (O2 ≥ 82%)
	4	COM	COM

This product is an upgraded version of the previous BM62S5601-1, redesigned with optimized size and interface layout. A detailed comparison is shown below: