Type 93 Passive Sonar

[Edit] Type 93 Passive Sonar No.46 九三式水中聴音機
Small Sonar Effects: +6 +1 Scrap value: 1 1 (Buildable)
Refittable Ship Types
Coastal Defense Ship	Destroyer
Light Cruiser	Torpedo Cruiser
Heavy Cruiser	Training Cruiser
Aviation Cruiser	Fast Battleship
Battleship	Aviation Battleship
Light Carrier	Standard Aircraft Carrier
Armored Carrier	Seaplane Tender
Submarine	Aircraft Carrying Submarine
Submarine Tender	Fleet Oiler
Repair Ship	Amphibious Assault Ship

Introduction

対潜兵装です。
いわゆるパッシブソナーです。性能は残念ながら、あまり良くはありません。
でも、あるとないとでは大違い！対潜作戦のお供に、ぜひどうぞ！

An anti-submarine weapon, also known as the passive SONAR. It may not perform its job well, but it's better than nothing. Please use it for anti-submarine operations!

Notes

Buildable. Ships receive a boost of 15% more ASW firepower when this is used together with a depth charge launcher or depth charge, and 143% more power when all three types are used (must be on the same ship)

Quest reward from the Saury 2015 Seasonal Event.