Accessories Temperature Sensor for ST-EW-1 & ST-EW-2 Code:ST-ET-1 Price:$25.00 Quantity in Basket:none   Temp. & Humidity Sensor for ST-EW-3 Code:ST-ET-2 Price:$35.00 Quantity in Basket:none   UV Sensor for ST-EW-3 Code:ST-ET-3 Price:$80.00 Quantity in Basket:none   Air Quality Sensor for ST-EW-3 Code:ST-ET-4 Price:$89.00 Quantity in Basket:none   External Transducer Set for ST-SM-5 Code:ST-CK-5 Price:$49.00 Quantity in Basket:none   SKYWATCH Rail Mount Code:ST-AP-15 Price:$23.00 Quantity in Basket:none   SKYWATCH Backstay Mount Code:ST-AP-16 Price:$23.00 Quantity in Basket:none   Windtunnel for ST-SM-18 & ST-SM-19 Code:ST-SM-WT Price:$35.00 Quantity in Basket:none   Carrying Case (All Windmeters) Code:ST-AP-22 Price:$15.00 Quantity in Basket:none   SKYMATE Impeller for ST-SM-18, ST-SM-19 & ST-SM-28 Code:ST-AP-28 Price:$25.00 Quantity in Basket:none

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