Simrad CE33 ChartSounder Manual page 140

Chapter 10-12 CE33 Installation and service
Airmar SS505
- Optional fairing
Ref.no. 179-0401-011
Thru-hul stem mount
Accomodates hull thickness:
Min. no fairing 6 mm (1/4"), Max. with fairing 83 mm (3 1/4")
Frequency: 50/200 kHz
Beamwidth: 45° / 15°
Cable length: 10m (32')
Depth information.
Ref.no. 179.0401.004 (B45)
Housing: Bronze
Recommended for fiberglass or wooden hulls only.
Ref.no. 179.0401.008 (SS505)
Housing: Stainless steel
Recommended for any hull material.