The Sea Marshall AU9 Man Overboard Alerting Unit (PLB) is for general marine use when fishing, yachting, on coastguard duty etc.

This is a fully automatic miniature 121.5 MHz man overboard alerting unit (PLB) that forms part of a self-managed man overboard locating device/SOS system.

This unit has a yellow side switch and AU9 front label to differentiate it from other AU9 models.

Benefits

• 24/7 monitoring gives confidence to you and your crew
• Small and comfortable to wear
• Automatic activation upon immersion
• Protects you and your crew day and night
• Long-range homing signal on 121.5 MHz (can be tracked by SARfinder or coastguard/helicopter)
• Robust marine construction
• Can easily be fitted into a lifejacket or flotation garment. Universal lifejacket PLB fixing kit available separately

Specification

• Frequency (LIVE) 121.5 MHz
• Modulation: Continuous swept tone A3X, downward swept tone
• Output power: 100 mW/500 mW
• Temp range (storage): -55°C to +70°C
• Approvals: CE, FCC
• Test frequencies: 121.65 MHz and 121.775 MHz
• Activation: Manual and Automatic 5 seconds (salt/freshwater) with manual override (manual activation option)
• Antenna: High-efficiency 1-m cable with flexible helical spring section, LED strobe (adaptable for lifejacket fitting)
• Strobe: In-built hi-visibility LED strobe on antenna flashes ‘SOS’
• Internal loudspeaker: 80 dB
• Weight: Approx 250 g
• Waterproofing: IP-68
• Battery: AA lithium, user-replaceable
• Automatic low-battery warning indicator (LED flashes on and off every 15 sec combined with audible beep)
• 500 mW = approx 24-hour transmit
• 100 mW = approx 48-hour transmit