Uno Pressure Transducer data logger 5v supply question

Using Arduino Project Guidance
1

Hello all,

This is my first Arduino project so I'm a little bit unsure regarding the supply voltage to a pressure transducer that I want to log.

It's a ratiometric transducer:

Working Voltage: 5VDC
Output Voltage: 0.5-4.5 VDC
Sensor material: Carbon steel alloy
Working Current: ≤10 mA
Working Pressure Range: 0-1.2 MPa
The Biggest Pressure: 2.4 MPa
Cable length: 19cm
Destroy Pressure: 3.0 MPa
Working TEMP. Range: 0-85℃
Storage Temperature Range: 0-100℃
Measuring Error: ±1.5 %FS

I also have an Adafruit data logger shield connected with RTC and intend to power it via 2 18650 batteries at 7.2v 3100mah to the DC jack.

Runtime will be no longer that 5.mins at a time with a sample rate of 250ms.

Given the relatively crude accuracy of the transducer ( compared to an industrial one) is the onboard 5v rail sufficient or is external 5v preferable?

Apologies in advance if the question sounds daft.

Thank you.

2

Ratiometric sensors should use the same voltage as the ADC. I.e. the default setting: Vcc of the Arduino as ADC reference voltage. 10mA is within the capabilities of a 5V Arduino line.