System Sensor 4W-B Smoke Detectors

Keeping the Old Systems Running like New!

My home combo Fire/Security system is over 25yrs old. I know, that's pretty old. However, it still reliable, works well and does the job I need. Having companies on Ebay who still sell these peripheral devices like smoke detectors allows me to keep my home safe and system running. System Sensor by Honeywell are solid quality products at reasonable cost.Read full review

Verified purchase:  Yes • Condition: new • Sold by: audvidrep1

Need to have, works right out of the box

Replacement for an old unit . Worked right out of the box. They seem to last about 2 years.

Verified purchase:  Yes • Condition: new • Sold by: toomanyamps

Installed in customer's home and worked ...

Installed in customer's home and worked as intended. Thank you.

Verified purchase:  Yes • Condition: pre-owned • Sold by: proutsurplus

very good

very pleased

Verified purchase:  Yes • Condition: new • Sold by: fireandsecurity...

Great devices

Quality and reliable product

Verified purchase:  Yes • Condition: new • Sold by: mtps-tools

At least someone has one

Worked perfectly

Verified purchase:  Yes • Condition: pre-owned • Sold by: lowvoltage

Smoke detector

Great