Garmin GT21-TH S/S Thru-Hull ClearV CHIRP, 600W 50/200kHz Traditional, 500W 260 455 ClearV CHIRP [010-01962-10] Anchoring & Docking | Docking Accessories The low-profile construction is impact

The low-profile construction is impact resistant and provides extra protection from water

Firewall mounting hole permits:

More uniform engine heating

Lights include rubber gasket lens seals for enhanced internal corrosion-resistance

ACR offers a Lithium polymer rechargeable battery option

Garmin GT21-TH S/S Thru-Hull ClearV CHIRP, 600W 50/200kHz Traditional, 500W 260 455 ClearV CHIRP [010-01962-10] Anchoring & Docking | Docking Accessories The low-profile construction is impactGT21 TH Perfect for coastal and offshore fishermen who want traditional sonar and CHIRP ClearV scanning sonar with a stainless steel stem, this thru hull mount transducer consistently displays clear and crisp fish arches with superior target separation as well as clear definition of structure below the boat. The CHIRP ClearV element has a power rating of 500 W and operating frequencies of 260 455 kHz. The traditional sonar has a power rating of 600 W