Are auto inflating life jackets reliable?

I am buying a life jacket for fishing, so want something which gives me some freedom of movement. The auto inflate ones seem to be the lightest and give the most freedom of movement, however I am worried about their reliability – will they inflate when needed? Also, what sets off the auto inflate and is this likely to happen by accident?

I’ve done a training course with them and mostly they worked OK. However the one was given failed to go off – whether this was part of the course or not, am not sure. I had to manually inflate the jacket which was no problem to do – easy to inflate it.

Campbell Hausfeld MP6000 Tire Inflator with Gauge $13.99 Inflation gun, chuck and gauge are combined in one easy-to-use unit for quick and accurate tire inflation. Clip-on design enables hands-free chuck use….

Black & Decker ASI300 Air Station Inflator $38.59 Powerful and portable, the Black & Decker ASI300 Air Station Inflator is the portable solution to household and on-the-go inflation needs. An illuminated pressure gauge gives you precise control, with an automatic shut off feature to make inflation easy. The ASI300 draws power from any home outlet or your vehicle’s lighter socket, so you can set it up where you need it.ul.indent {list-style: insid…

Campbell Hausfeld RP3200 12-Volt Inflator and Worklight $22.88 12V 140 P.S.I. inflator with safety light. Perfect for emergency roadside tire inflation or sporting equipment, or other inflatables. Features a built in pressure gauge that simplifies monitoring and tire pressure, plus it will automatically shut off pump when preset pressure (P.S.I.) is achieved. Bright work and safety light aids in nighttime emergencies. Cooling fan gives unit extended life and …

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Omron HEM-712CLC Automatic Blood Pressure Monitor with Large Cuff $44.95 Not only does the HEM-712CLC Automatic Blood Pressure Monitor utilize Omron’s patented IntelliSense technology, but it also features an larger cuff that is perfect for larger-sized arms. It’s easy to apply the cuff to your arm without any assistance — simply wrap the cuff around your arm and press start. In seconds your blood pressure and pulse are displayed on the large digital panel. Proven tim…

Omron HEM-712C Automatic Blood Pressure Monitor with IntelliSense This unit automatically inflates with the push of a button and displays blood pressure and pulse rate on a large digital panel. It includes your choice of adjustable adult arm cuffs- standard ( fits arms 9″ to 13″ ) or large ( for arms 13″ to 17″ ), operates on 4 “AA” batteries and includes a 2-year warranty….

Mark Of Fitness Mf-46 Auto-Inflate Blood Pressure Monitor (Electronics-Other / Blood Pressure Monitors) $37.29 MARK OF FITNESS MF-46 AUTO-INFLATE BLOOD PRESSURE MONITOR. CLINICALLY PROVEN ACCURATE, MEMORY FOR 2 STORES 30 READINGS EACH WITH AVERAGE, IQ SYSTEM, LARGE DISPLAY OF READINGS WITH DATE & TIME…

ADC 6012 ADVANTAGE Semi-Automatic Blood Pressure Monitor $29.99 Compact and easy-to-use….

Blood Pressure Monitor with Manual Inflation & Auto Defl. (Catalog Category: Blood Pressure / Manual-Inflate Digital B. P.) $48.41 Manual Inflation Automatic Deflation * Features 15mm Digits 60 memories risk category indicator memory average function date & time stamp * Includes adult standard size cuff storage bag and batteries * Beautiful four color impact packaging *…

Black & Decker JUS500IB 500-Amp Jump Starter with Built-in Tire Inflator $78.99 - 500 Instant starting amps for maximum performance- 120 PSI inflator for vehicle tires sports equipment and more- Ultra bright area light for increased visibility – Low-profile design for easy storage in vehicle or garage- Visual and audible reverse polarity alarms warn against improper connections to battery terminalsBNDJUS500IB…