[GUEST ACCESS MODE: Data is scrambled or limited to provide examples. Make requests using your API key to unlock full data. Check https://lunarcrush.ai/auth for authentication information.]

![sandraAFRL Avatar](https://lunarcrush.com/gi/w:24/cr:twitter::396795992.png) Sandra Pérez [@sandraAFRL](/creator/twitter/sandraAFRL) on x XXX followers
Created: 2025-07-25 02:20:28 UTC

Hack-for-water challenges ask students to design low-cost water-quality sensors using pH probes and IoT modules for community wells. #HackForGood #WaterTech


X engagements

![Engagements Line Chart](https://lunarcrush.com/gi/w:600/p:tweet::1948569008090779979/c:line.svg)

**Related Topics**
[iot](/topic/iot)

[Post Link](https://x.com/sandraAFRL/status/1948569008090779979)