Don’t know, we retuned ours as it was full of problems and non-existent tech support. I would stay away from this company made in China. Ended up getting a great a unit from Davis Instruments, made in California. (Purchased from Amazon) they have live telephone support and they could answer your question or recommend the best product for your boating needs.

Country of Origin	USA
Item part number	WH68AE
Package Dimensions	38.2 x 30.2 x 7.2 cm; 500 g
ASIN	B07JLRQJ12

ECOWITT WS68 Wireless Solar Powered Anemometer with Light & UV Sensor - Accessory Only, Can Not Be Used Alone

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