Kidde KN-COP-DP-LS Nighthawk AC Plug-In CO Alarm with Digital Display

Kidde KN-COP-DP-LS Nighthawk CO Alarm: At a Glance

The Kidde KN-COP-DP-LS Nighthawk is an AC-powered plug-in carbon monoxide alarm from Kidde's long-established Nighthawk product line, featuring a clear digital display that continuously shows ambient CO concentration in parts per million. SKU KN-COP-DP-LS identifies this as the AC plug-in variant with digital display in the Nighthawk series — a product engineered for straightforward outlet installation combined with professional-grade monitoring capability. Powered directly from a standard 120V wall outlet, this alarm is always-on under normal power conditions, with the digital readout giving users and safety staff an at-a-glance view of CO levels without triggering a test alarm. For facilities managers, property managers, and safety coordinators who need reliable, branded CO protection with visual monitoring, the KN-COP-DP-LS delivers Nighthawk credibility in an easy plug-in form factor.

• Model / SKU: KN-COP-DP-LS (Kidde Nighthawk AC plug-in)
• Power: AC plug-in (120V)
• Display: Digital CO ppm readout
• Series: Nighthawk — Kidde's field-proven CO alarm line
• Standard: UL 2034 listed

Why Choose the Kidde KN-COP-DP-LS Nighthawk?

The Nighthawk name has been synonymous with CO detection credibility for years. The KN-COP-DP-LS brings that reputation into a simple AC plug-in package that installs in seconds and provides continuous digital monitoring from the moment it's powered up. For safety buyers who want a trusted specification — one with a proven brand behind it and a clear digital readout that maintenance staff and building occupants can interpret without training — the KN-COP-DP-LS is a straightforward choice.

The AC plug-in form factor is ideal for locations where power is consistently available and where the convenience of outlet installation is preferred over hardwiring costs. Unlike battery-operated units that require ongoing battery replacement and monitoring, the KN-COP-DP-LS draws from a reliable AC supply, reducing maintenance overhead for property managers and building maintenance teams. The digital display means every site visit can include a quick visual CO check — replacing a reactive alarm-response model with a proactive monitoring approach.

Key Features

• AC plug-in power — continuous operation from standard 120V outlet
• Nighthawk series — Kidde's established, field-proven CO detection line
• Digital display shows live CO concentration in parts per million
• Electrochemical CO sensor for stable, accurate detection over time
• 85 dB audible alarm upon reaching CO alarm threshold
• Peak CO memory stores highest CO level recorded during an event
• End-of-life indicator alerts when sensor nears replacement interval
• Test/reset button for routine monthly functional verification
• UL 2034 listed — meets most residential and light commercial CO code requirements
• Outlet plug-in installation — no tools, no electrician, no permits needed
• Compact Nighthawk housing — familiar form factor for users standardized on the brand
• No battery replacement required under normal AC power conditions

Real-World Benefits

Building owners and property managers who specify the KN-COP-DP-LS benefit from Kidde's supply chain reliability and the brand recognition that Nighthawk carries among safety professionals. When a property is sold, inspected, or audited, having a recognized brand's UL 2034 listed CO alarm installed reads immediately as a professional safety specification — not an afterthought purchase from a discount store. The digital display reinforces that professionalism by demonstrating active monitoring rather than passive alarm presence.

Facilities teams appreciate that AC-powered alarms eliminate the low-battery complaint cycle that plagues battery-only units. With the KN-COP-DP-LS, the alarm is always on, always monitoring, and always displaying CO data as long as the outlet has power. For routine safety inspection checklists, this simplifies the verification process: plug it in, confirm the display reads a value (zero or otherwise), and move on — no battery test required. The end-of-life indicator handles sensor replacement timing automatically, adding a further layer of maintenance simplicity.

For hospitality properties, senior living facilities, and educational settings where simple, reliable CO protection is needed across many rooms or units, the KN-COP-DP-LS's plug-in convenience makes large-scale deployment achievable without specialized labor. A property manager or maintenance tech can install a unit in every unit in a building in a single afternoon without electrical permits or contractor scheduling.

Applications & Ideal Use Cases

The KN-COP-DP-LS excels in any setting with consistent AC power and a preference for outlet-based installation. Best-fit deployments include residential units near sleeping areas and attached garages, hospitality guest rooms requiring reliable visible CO monitoring, office spaces adjacent to parking structures or mechanical rooms, senior living common areas and individual rooms where continuous monitoring is valued, and property management portfolios where a single standardized Kidde Nighthawk model is deployed across many buildings for simplified procurement and maintenance. The Nighthawk brand also makes this a natural choice for safety professionals who have used the line in past projects and trust its performance record.

Product Specifications

Related Products & Resources

• Browse All CO Detectors at WC Safety
• Kidde KN-COP-DP-B — Same Series with Battery Backup
• Kidde KN-COPF-I Hardwired Interconnectable CO Alarm
• Kidde KN-COPP-B-LP Nighthawk Battery CO Alarm
• WC Safety Product Reviews Blog

Frequently Asked Questions

What is the difference between the KN-COP-DP-LS and the KN-COP-DP-B?

The KN-COP-DP-B includes battery backup for continued protection during power outages, while the KN-COP-DP-LS is an AC-only model that relies on outlet power. If protection during outages is a priority — particularly in locations where portable generators or alternate heating may be used during outages — the KN-COP-DP-B is the better choice. For locations with reliable power and a preference for simpler, lower-maintenance operation, the KN-COP-DP-LS is an excellent fit.

Does the KN-COP-DP-LS work during a power outage?

No. The KN-COP-DP-LS operates on AC power only and will not function during a power outage. If battery backup during outages is required, consider the KN-COP-DP-B or battery-operated models such as the KN-COPP-B-LP or KN-COPP-B-LPM. For locations where outage protection is essential, a backup battery model is recommended.

How do I read the digital display?

The digital display shows the current ambient CO concentration in parts per million (ppm). A reading of 0–9 ppm represents normal background conditions. The display also shows L (low) or numerical readings during alarm events, and provides status indicators for end-of-life and other conditions. During alarm conditions, follow established emergency procedures regardless of the displayed ppm value.

How often should I test the KN-COP-DP-LS?

Kidde recommends testing CO alarms at least once per month using the test/reset button. This verifies that the alarm circuitry and audible alarm are functional. Monthly testing also confirms the digital display is operating and the unit remains properly plugged in and powered.

Is the Nighthawk series being discontinued?

Kidde continues to support the Nighthawk series for existing installations and ongoing sales. WC Safety stocks current Nighthawk inventory and can advise on equivalent replacement models if specific variants are unavailable. Contact our team for current availability and recommendations for Nighthawk-series orders.

Can I order the KN-COP-DP-LS in bulk from WC Safety?

Yes. WC Safety specializes in B2B safety supply and welcomes bulk orders of the KN-COP-DP-LS and other Kidde Nighthawk models. We offer volume pricing, consolidated shipping, and net-terms accounts for qualifying business customers. Contact our team to discuss your deployment needs.