Description
AQUALARM Wet Exhaust Overheat Alarm Kit, Single Engine 12V – 20245 is a complete single-engine wet-exhaust overheat warning system. The band-mounted detector monitors exhaust temperature and triggers the red warning light and built-in panel buzzer at approximately 200°F, providing early warning of cooling-water loss before severe hose, muffler, or engine damage occurs.
Key Features
- Wet-exhaust detector trips at approximately 200°F / 93°C
- Adjustable aluminum mounting band fits approximately 2 in to 8 in diameter exhaust elbows or flexible wet-exhaust hose
- Panel includes red alarm indication, green power/monitoring indication, and loud built-in buzzer
- Includes approximately 5 ft / 1.5 m of marine-grade tinned wire
- Useful for detecting raw-water cooling failures caused by blocked intakes, failed impellers, closed seacocks, or other flow loss
Specifications
- Manufacturer: AQUALARM
- Part Number: 20245
- System Voltage: 12V DC
- Engine Configuration: Single engine
- Alarm Temperature: Approx. 200°F / 93°C
- Detector Band Range: Approx. 2-8 in / 5.1-20.3 cm diameter
- Wire Included: Approx. 5 ft / 1.5 m marine-grade tinned wire
- Panel Size: Approx. 3 in x 1-3/4 in / 7.6 x 4.4 cm
- Panel Indication: Green power light and red overheat light with audible buzzer
Installation & Compatibility
Secure the detector band around the wet-exhaust elbow or flexible hose at a location that will quickly reflect cooling-water loss. Mount the warning panel at the helm and route the tinned leads away from exhaust heat and moving components.
What’s Included
- Wet-exhaust overheat detector with adjustable aluminum band
- Single-engine warning panel with buzzer and status lights
- Approximately 5 ft of marine-grade tinned wire
Application Notes
This alarm detects elevated wet-exhaust temperature and complements, rather than replaces, engine coolant-temperature and raw-water-flow monitoring.

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