Main Features of Sun Index Device

Free companion app

No Sun Index device? No problem. Our free app works without a wearable.

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Sun Index Specifications

Size and weight
26X26X9 mm, 1X1X0.35 inch
~7g with battery
UV Sensor
Range 0 to 11+
Temperature sensor
-40°C to +60°C (@25°C ±0.5°C)
-40°F to +140°F (@77°F ±1°F)


Plastic enclosure


Syncs via Bluetooth Low Energy (BLE)
Replaceable coin size battery (CR2032)


Notifications and alerts
5 x LED: White, Cool 6020K
Buzzer: 65dB @10cm


Environmental conditions
Optimum Operating Temperature: -22° to +131° F (-30° to +55° C)
Non-operating Temperature: -40° to +140° F (-40° to +60° C)
Splash-proof: Resistant to variable weather conditions


Internal Memory
256-kb flash memory. Saves 45 days of detailed data