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NA21 can be achieved within the maximum error accuracy 85℃, temperature range from -40℃ to + 1%, the maximum offset is 100 uV.
The high-precision products combine the advantages of 12-bit resolution. This module can be sensed bus voltage range is 0 V to +26 V.
Footprint: SOT23
Working Voltage 3~5V
Size: 25.5* 22.3mm
Used for I2C port zero drift / bidirectional current / power monitoring sensor module
Package Included:
2 * INA219 Bi-directional DC Current Power Supply Sensor Module
Ron Weiner
2025-06-27 21:36:49
When I bought these things, I wasn't sure exactly what I bought. But it turns out that the one that I have put into my project is giving me exactly the information that I need. Easy to wire up, a good library for the Arduino made this an excellent buy. I would not hesitate to buy more for future projects.
Aidan
2025-06-12 10:01:27
Batteries make shunt go bye-bye robot now takes voltage to monitor where it is battery-wise, which was always the plan... But it always get some sort of wonky voltage reading whatever you power it up for the first time.
S. A. ROBBINS
2025-05-14 10:29:52
I have replaced quite few of these due to failure. But they are a simple and easy way to get current info into an Arduino module. if you do buy these, just make sure to test them before the return period expires.
Nazmul Hossain
2025-05-06 14:18:30
Based on the other reviews, I knew I was playing a game of roulette. Neither of the two units I purchased worked. Very disappointed!
Alla Alamsi
2025-04-27 15:07:22
I was expecting the high precision version of the chip (ina219b), which is a small one similar to the one shown in the pictures. Instead I got the regular one which is a bigger chip and is not as precise. Update your pictures if you are using different parts!
kyle williams
2025-04-05 17:23:01
Just as the other reviews said they stoped working in one day. all 4 of them . 2 deployed at a time on a 5 volt system
Customer
2025-02-18 11:13:18
These don't work in any way, they reply with nonsense over the i2C port.
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