Si-Tex TM150M Plastic Transom Mount Transducer with CHIRP Free Ground Shipping! Si-Tex TM150M Plastic Transom Mount Transducer with CHIRP SiTex 300W Transom Mount Transducer with CHIRP Technology. Depth and Temp. SKUSIXTM150M MAN#TM150M ID#: 7278 (Rating 86) Our Price: $279.95 Availability: Usually Ships in 3-5 Days Shipping:Free Ground Shipping! Condition:Brand New Add to cart We’re sorry for the inconvenience, but please know we are working hard to replenish stock and fill backorders. Global shipping constraints and other material shortages have slowed the supply of products in many industries, including GPS and Marine electronics. We update the Estimated Shipping Date on our website in real time, so feel free to check back frequently. Thank You for your patience and for shopping with The GPS Store, Inc.