Legion
28.05.2021 15:27:45
The Safe-T-Alert 60-542 is compact and nicely made and easy to mount. It has come down in price and is a good value, now listing for about $70. here
See full version: CO Detectors: Its MTI Safe-T-Alert
The Safe-T-Alert 60-542 is compact and nicely made and easy to mount. It has come down in price and is a good value, now listing for about $70. here
How We Tested
Underwriters Laboratories (UL) has two standards which define the performance requirements for CO detectors, one for residential applications and one for marine. Alarms for marine use are listed under UL Standard 1524, which sets criteria for sensitivity and detection limits, and for environmental factors such as shock, vibration, temperature and humidity resistance. Our objective was not to replicate ULs acceptance tests but to set up what we judge to be a real-world evaluation process that checks the basic function of each alarm. more
The Fireboy/Xintex CMD2-M is nicely made and simple to install. The circuit board is coated with a varnish, which the company says protects it against the effects of salt air. Price is $88, a third less than five years ago. more
Bottom Line: A good alarm with an effective early warning. Drawback: It requires fresh batteries. [links]
These curves reveal some sobering aspects of the CO problem. For one thing, the effects are not linear. Doubling the concentration of CO cuts the time to reach a given COHb level by more than half. For example, exposure to 200 ppm of CO for 90 minutes produces a 25% COHb level, which can cause headaches and nausea. Doubling the CO level to 400 ppm reduces the time to about 35 minutes. Another tipoff to the hazard: These are very tiny concentrations; 400 ppm is less than 1/20 of 1%. A concentration of 1/10 of 1%, or 1,000 ppm, can cause death in a half hour.
PS also tested a 9V surface-mount detector from The Quantum Group, based in San Diego, CA, called the CO Star Marine ($68), which is marketed as a marine detector. Although it does not have UL certification, it is endorsed by the Recreation Vehicle Industry Association. more
Safe-T-Alert
MTI’s Safe-T-Alert is a UL 2034 certified detector that runs off of ship’s power. It is available in both surface-mount and flush-mount models, which have casings almost twice as large as the CO Sentinels. Surrendering this extra wall space to a CO detector may not be appealing, but the Safe-T-Alert’s $55 price might do something to brighten your perception of it. It also has some unique capabilities relative to the other models we tested. It has a memory function that will convey to you, or a first-responder in an emergency situation, through a series of flashing lights, the approximate CO level that triggered the alarm. It also has a “self-cleaning,” solid-state metal oxide sensor that acts essentially like a self-cleaning oven, burning off potentially damaging dust and chemical residue by heating up the sensor. [links]
Of the hardwired models, the CO Sentinels from Fireboy/Xintex ($157 and $190 for the interface and generator shut-off capabilities) are the better value because of their warranty renewal plan, which will ensure that you have a properly functioning device for as long as you care to keep up with it. The Safe-T-Alert was on par in terms of performance, and is much less expensive than its counterparts at $55. Because of that, and its additional features, we deem it a Best Buy, but keep in mind, you’ll have to replace it at least every five years.
Conclusions
Though these devices tend to be expensive and fickle, the truth is that marine carbon monoxide detectors are necessary equipment if your boat has confined spaces, especially if you operate a portable or on-board generator for long periods of time and you sleep or spend lots of time belowdecks.
• Mute button that temporarily silences alarm. • 24 hour continuous protection. • Easy installation. • No wiring required. • Meets RVIA/NFPA requirements. • Mute button that temporarily silences alarm. • 24 hour continuous protection. • Easy. [links]
• This rugged water light produces brilliant strobe flashes automatically when thrown overboard and is visible for miles at sea. • Unit will flash at the USCG required rate for over 52 hours and. • This rugged water light produces brilliant strobe flashes automatically when thrown overboard. more
• Lamp and lens combo produces brilliant light visible for over 1 mile. • Operates in fresh or salt water. • Standard length lead wire 18”. • Water activated battery. • Waterproof: 10 ft. •. • Lamp and lens combo produces brilliant light visible for over 1 mile. • Operates in fresh or.
• Made from injection molded plastic. • When thrown overboard, the light automatically commences to flash a bright flashing strobe light visible for miles. • Extensively tested to withstand 90. • Made from injection molded plastic. • When thrown overboard, the light automatically commences.
• Waterproof, non-toxic, flame resistant. • Green chemical light stick with a metal clip for attaching to clothing, lifejackets or personal flotation devices. • To activate, squeeze plastic. • Waterproof, non-toxic, flame resistant. • Green chemical light stick with a metal clip for.
• Passes a 76-metre drop height test, which exceeds SOLAS requirements. • Minimum 15-hour duration. • 5-year storage life. • No maintenance or replacement batteries required. • Compact size. •. • Passes a 76-metre drop height test, which exceeds SOLAS requirements. • Minimum 15-hour. more
Test/Reset button is designed for weekly testing if it works properly and resets the unit during CO alert. Alerts users when batteries needs to be replaced. It is highly recommended that this alarm be mounted on a wall surface. Compact, lightweight & easy to operate.
Specifications
1. Color: White
2. Sensor: Electrochemical CO sensor
3. Sensitivity/Alarm Time: Within 60
This Kidde carbon monoxide alarm is designed to provide a loud, 85-decibel warning before the level of tasteless, odorless carbon monoxide in your home becomes dangerous. Its sensitive, electrochemical sensor detects from anywhere in the room. Its test/silencer button allows you to check electronic functions or quiet the alarm while you locate the source of trouble. Battery operation provides protection during power outages. Snap-open cover gives you easy access to batteries. Uses 3 AA batteries (included). 5-yr. limited manufacturer's warranty. No. KN-COB-B. Imported. more