Yamaha Brings CO Sensor to Full Generator Lineup

Yamaha Motor Corporation USA has updated its full line of inverter and conventional generators with Carbon Monoxide (CO) Sensor technology to meet the Portable Generator Manufacturers’ Association’s (PGMA) ANSI/PGMA G300-2018 carbon monoxide emissions standard, the company reports.

Already featured on the EF2200iS since mid-2021, the CO Sensor is now also standard on Yamaha’s EF3000iS/iSEB, EF4500iSE, EF5500DE/D, EF6300iSDE and EF7200DE/D models.

Yamaha EF5500DE

When the CO Sensor detects elevated levels of carbon monoxide, the generators automatically shut off and will remain off for approximately five minutes, with an indication to move to a well-ventilated space. The CO Sensor graphic and LED indicator lights have been added to the control panels to notify the user of carbon monoxide emission levels or system malfunctions.

“As a leader in the portable generator industry, Yamaha supports technology that enhances the overall protection and performance of our products,” says Kevin Reed, Yamaha Outdoor Power Products division senior manager. “Whether for DIY projects, emergency back-up power or camping, delivering safe and reliable power is our top priority as we continue to make this technology a standard feature across our lineup while maintaining the performance and reliability that our customers have come to expect.”

In addition to the CO Sensor, various protection systems are also included to maintain the performance and operation of the generators. All Yamaha generators are equipped with a Low Oil Warning System that shuts off the engine if the oil level drops too low. To prevent electric shock, the EF3000iS/iSEB, EF4500iSE and EF6300iSDE are equipped with a ground earth terminal while the EF5000D/DE and EF7200D/DE feature advanced dual GFCI 120V outlets that automatically cut off power if they sense a leak to ground.

Other features on Yamaha generators include:

  • All Yamaha generators model range EF3000iS/iSEB up to EF7200D/DE are equipped with a 30-amp outlet; the EF3000iS/iSEB and EF4500iSE are equipped with dual 20-amp outlets to power standard appliances and tools; all generators from the EF5500D and up are also equipped with full-power 120/240 dual voltage four-prong locking outlets
  • The EF3000iSEB to the EF7200DE feature an effortless turn-key or push button electric start and fuel gauge.
  • Yamaha’s Smart Throttle (on select models) automatically adjusts engine speed to reduce noise and conserve fuel for maximum efficiency.
  • Yamaha’s Noise Block Sound Reduction keeps noise to 58-64 decibels.


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