wind socks
dwyer instruments a 376 portable wind meter balls
replacement wind meter ball floats temp . range ambient weather temperatures for use with 3t308 includes 3 replacement ball floats br b features b ul li for use with mfr . no. 100011 00 li li includes 3 replacement ball floats li li item portable wind meter balls li li temp . range ambient weather temperatures li li manufacturers warranty length 1 yr . li ul