# Battery-Less NFC Sensor for pH Monitoring

> Research article (IEEE Access, 2019) · cited 46× · AI/ML

**Wikidata**: [openalex:W2921755150](https://www.wikidata.org/wiki/openalex:W2921755150)  
**Source**: https://4ort.xyz/entity/battery-less-nfc-sensor-for-ph-monitoring