Does the quick connect electrical connector come with each detector

For all those writing reviews that they are unhappy with the AC plug in this is an easy fix. First turn the power off to your smoke detectors. If you don't know what breaker this is then just turn off the power to the whole house if possible and work with a small flashlight or head lamp. Just disconnect the wire nuts from the existing electrical connector making sure to remember or mark which colors are connected to each other. Then reconnect in reverse the new electrical connector and presto you have converted your current connections to the new electrical connector. I did this on over 10 detectors two years ago and have 4 more to replace this winter. It takes a little time, but is as simple as changing a light bulb. Skill level is about a 1.

I bought the set of 4 and I need another why can’t I find single units of these on Amazon.

Probably because if the connectors aren't the same, you can't return the product, so you get stuck with 4 boat anchors and they make bigger profits at your expense. The product page does NOT say that there is no return.

Does test also sense for Carbon monoxide?

No. There ARE combination smoke detectors/carbon monoxide detectors, but this isn't one of them.

Kidde I4618ac Hardwire Smoke Alarm 4 Pack

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HK$3863

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Sold byAmazon Hong KongDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔥 Stay ahead of danger with Kidde’s smartest smoke alarm yet! 🔋

SMART ALARM MEMORY - Red LED flashes to identify the initiating alarm in interconnected systems, so you know exactly where danger strikes.
RELIABLE POWER BACKUP - 9V battery backup ensures continuous protection even during power failures—never compromise safety.
BUILT TO LAST SECURE - Tamper-resistant locking feature deters theft and dust cover reduces false alarms during construction.
UNMATCHED CONNECTIVITY - Interconnect up to 24 devices, including smoke, CO, and heat alarms, for whole-home safety synergy.
EFFORTLESS INSTALLATION - Front battery pull tab and large mounting base make setup a breeze, saving you time and hassle.

The Kidde i4618AC Hardwire Smoke Alarm 4-pack combines easy installation with advanced interconnectivity, featuring a 9V battery backup and tamper-resistant design. Ideal for modern homes, it offers reliable, whole-house fire detection with smart alarm memory and dust protection, ensuring peace of mind for you and your family.

Specifications

ASIN	B07J9KC24B
ASIN	B07J9KC24B
Alarm	Audible
Batteries	4 9V batteries required.
Best Sellers Rank	#79,747 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #83 in Smoke Detectors & Fire Alarms
Brand	Kidde
Color	White
Customer Reviews	4.6 4.6 out of 5 stars (1,535)
Date First Available	October 9, 2018
Item Weight	2.58 Pounds
Item model number	i4618AC
Manufacturer	Kidde
Manufacturer	Kidde
Mfr Part Number	748427903060
Model Number	i4618AC
Power Source	Battery Powered
Product Dimensions	4.72 x 3.94 x 3.94 inches; 2.58 Pounds
Product Style	Hardwired
Sensor Type	Ionization
UPC	748427903060
Unit Count	4 Count
Upper Temperature Rating	40 Degrees Celsius

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