Protect your fleet and
the future with ZeroRPM™

An eco-friendly solution for your patients, your crew,
the environment, and your operational costs.


The ZeroRPM Idle Mitigation System
Your EMTs are never off-duty and neither is their ambulance. Always on call, your fleet is often idling all day and all night to keep vital equipment protected: HVAC, interior/exterior lighting, communications equipment, electrical systems; including batteries, chargers, narcotics, temperature-controlled compartments, life-support systems, and more. That’s why departments choose ZeroRPM, because when every second counts, an ambulance crew must always be ready to go.

With ZeroRPM, ambulance owners will see a decrease in fuel consumption, a reduction in CO2 emissions, and a decline in their vehicle operating costs. Designed to alleviate the expenses and complications that come from constantly running an ambulance’s engine, use of the ZeroRPM Idle Mitigation System (IMS) results in less risk to the environment and personal health. You’ll also see an extension of the ambulance’s chassis life, which means ZeroRPM is a win-win for patients, crews, and your entire ambulance fleet.

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What is ZeroRPM?

ZeroRPM is a hands-free Idle Mitigation System (IMS) for your ambulance, enabling it to function the same when parked whether the engine is running or not. It is designed to virtually eliminate costly, and harmful, vehicle idling.

Automatically starting and stopping the engine to decrease fuel consumption, pollution, and maintenance costs, ZeroRPM allows complete use of the ambulance’s critical functions as if the engine were still on. While crews continue to have access to the vehicle’s A/C, heat, windows, lighting, accessories, vital equipment and more, ZeroRPM helps reduce the negative impact extended idling has on the environment, personal health, and vehicle operating costs.

ZeroRPM is a perfect idle-mitigation solution when your ambulance is on the scene of a call, parked at the emergency room, or in static standby for its next call.

How ZeroRPM Operates

Activating ZeroRPM couldn’t be simpler. When the vehicle is placed in park and the driver takes his or her foot off the brake, the ZeroRPM Intelligent Vehicle Management System takes full control of the engine’s operation, shutting down or re-starting the engine, as necessary, to provide seamless operation of all the ambulance’s systems with minimal, if any, engine idling.

When idle mitigation is activated, ZeroRPM continues to provide power to operate as if the engine is running, allowing idle-free use of radios, emergency lights, interior lights, oxygen and medical air, fresh air ventilation, chassis windows, etc.

ZeroRPM also continues to heat or cool the vehicle as requested, with the heat and A/C systems working as they normally would through the factory-installed vents and controls. For extreme cold weather climates, a fuel-fired heater can be added, providing enhanced idle-free heat.

While the engine is off, ZeroRPM will monitor multiple conditions and, if required, ZeroRPM will automatically restart the engine to ensure continuous use of the ambulance. The ZeroKey feature allows the crew to leave the ambulance unattended without the need to leave the key in the ignition.

ZeroRPM systems have an Intellimetrics option, allowing you to track vehicle usage and observe idle mitigation operation. This feature provides valuable data such as Vehicle Diagnostic Trouble Codes (DTC) to support vehicle maintenance, calculators to track fuel and maintenance savings, and tracking to identify other possible idle reduction areas.

There is even an additional temperature control on the ZeroRPM controller to enable the cab’s heat and air conditioning to be set to a specific temperature. When set, ZeroRPM will turn off the cab’s HVAC once the selected temperature is reached.

Available Options

ZeroRPM offers several configurations to meet your specific needs. The common configurations are listed, below. Please consult with your REV Ambulance dealer for more detailed information.

How It Pays Back

In addition to reducing the environmental impact of unnecessary idling, ZeroRPM dramatically reduces the cost of operations, providing real savings and payback on the investment.

While operating and idling conditions vary widely between agencies, the table indicates ranges of common costs associated with idling that ZeroRPM is designed to eliminate.

Frequently Asked Questions

What is ZeroRPM?

ZeroRPM is an award-winning company with award-winning Idle Mitigation Systems (IMS) and ClimateGuard (CG) systems. Founded in 2012, ZeroRPM has thousands of active systems in the field. IMS can be found in armored trucks, ambulances, fire engines, bucket trucks, work trucks, police vehicles and security vehicles.

What is an IMS?

An Idle Mitigation System (IMS) is how we describe the family of technology that allows us to transform a standard vehicle into a hybrid on the scene or job site. We use the acronym IMS as a nickname for the same system. You will see both Idle Mitigation System and IMS used universally in our marketing and technical documentation.

What is the warranty for an IMS?

ZeroRPM warrants all system elements against failure due to defects in materials and workmanship for one (1) year. Extended battery warranties are optional at an additional cost.

Does adding the IMS to my vehicle void any OEM warranties?

An IMS does not void the factory warranty. Adding an IMS to your vehicle can reduce OEM warranty claims by mitigating engine idle time and thus engine hours.

Learn More About ZeroRPM

Already know the ZeroRPM system is right for your fleet? Looking to find out more about how this hands-free system works? No matter your request, simply fill out the form below and a member of our team will be in contact with you in no time.

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