The product is a pair of Apollo deep isolating bases (45681-518) designed for use with fire alarms.
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Wireless Portable Fish Finder 45M/135FT Sonar Depth Sounder Alarm Ocean River Lake echo sounder
Aliexpress UK
The Apollo 55000-017APO AlarmSense Sounder VID is a fire alarm device that emits a red flash to alert users of potential fire hazards. As part of the Apollo brand, this unit is designed to provide reliable and effective fire protection in various commercial, industrial, and business settings. With its sleek design and operational flexibility, this sounder is an essential component of any comprehensive fire protection system to ensure a safe and secure environment for employees and visitors alike.
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Erchang F68 WIFI Fish Finder 100M Wireless Fishing Sounder Echo Sounder Detect Finder fishing for Lake Sea Fishing IOS& Android
Aliexpress UK
Left over from recent installation. 2 unopened optical smoke detectors. 1 opened smoke detector and sounder base, like new condition. No base with smoke detector and no batteries with sounder base.
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Erchang F68 WIFI Fish Finder 100M Wireless Fishing Sounder Echo Sounder Detect Finder fishing for Lake Sea Fishing IOS& Android
Aliexpress UK
The Apollo Deep Isolating Base 45681-518 APO Red Flash Sounder is a high-quality, compact unit designed for use in a variety of deep water applications. With a focus on isolation and sound transmission, this product is perfect for underwater monitoring and detection tasks. The red flash feature enhances visibility in challenging environments, ensuring accurate results every time. Built by the trusted brand Apollo, this unit guarantees top-notch performance and reliability for all your underwater needs. These sounders were installed but not powered up due to them being the wrong model and not compatible with the existing fire alarm Used in very good condition No box’s Dispatched 2nd class Royal Mail
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LUCKY FF918-C180S Wired Fishing finder 540ft/180m Depth Sounder Fish Detector Monitor echo sounder for fishing from a boat
Aliexpress UK
Removed from system in working order - as shown in photos is what you will get
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Erchang Fish Finder Wireless Sounder For Fishing 60m/197ft Depth Rechargeable Echo Sounder Sonar Fishing Portable Fish Finder
Aliexpress UK
Apollo Discovery Base Sounder (White) with Isolator - 45681-702APO. Condition is New. Dispatched with Evri Tracked.
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LUCKY FF1108-1 Portable Fish Finder Ice Fishing Sonar Sounder Alarm Transducer Fishfinder 0.7-100m Fishing Echo Sounder
Aliexpress UK
XP95 Open-Area Sounder with white body. Built-in isolator. XP95 (works on Discovery & CoreProtocol). EN54-3 Sounder.
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Erchang F12B Wireless Fish Finder Rechargable Echo Sounder 90M Depth Portable Waterproof Sonar For Winter Ice Fishing
Aliexpress UK
They are loop powered wall mounted devices.
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Erchang Portable Fish Finder Water Depth Echo Sounder Handheld Sonar Castable Kayak Boat Fishfinder Transducer Fishing
Aliexpress UK