MangoLantern
Freshness You Can See
Solar-powered quality sensors for tropical street market stalls. Using antenna-based spectrometry to detect fish ammonia levels and mango sugar content in real-time, displaying results on lantern-shaped LED displays.
✨ The Wow Moment
It's 10pm in a Mumbai fish market when a customer who always walks past this vendor sees the lantern glowing bright green with a "Caught: 6AM today" timestamp. She stops, examines the fish, and buys 2kg — something she's literally never done from a street vendor at night. The vendor watches his unsold inventory, usually 40% waste, drop to zero.