detectors and sensors best sellers

#1 4 in 1 Upgraded Combination NORJAN 4-in-1 Upgraded Combination Natural Gas Leak Detector and Carbon Monoxide Detectors, Dual Sensor Gas Leak Detector & Carbon Monoxide Detectors Plug in (Temperature & Humidity Sensor) for Home, RV

$35.97 on Amazon

#2 Carbon Monoxide Detector CO FDUIOSPF Carbon Monoxide Detector,CO Gas Monitor Alarm Detector,CO Sensor with LED Digital Display for Home,Depot,Battery Powered

$11.99 on Amazon

#3 1 Pack Upgraded Combination Yfwsrecinoe 1 Pack Upgraded Combination Smoke and Carbon Monoxide Alarm Detector, Dual Sensor Smoke Alarm&Carbon Monoxide Detector (Includes Battery)

$17.95 on Amazon

#4 🔥 White Flo Smart Water Moen White Flo Smart Water Leak Detector, Water Sensor Alarm for Home, 3-Pack, 920-005

$112.99 on Amazon

#5 🔥 Acme Security 110 dB Acme Security 110 dB, 1000 ft Range Black LED Motion Detector Household Sensor and Alarm, 2 Pieces

$38.99 on Walmart

#6 Carbon Monoxide Alarm YHOCO Carbon Monoxide Alarm Detector,CO Gas Monitor Alarm Detector,CO Sensor with LED Digital Display, 85dB Sound Alarm for Home,Office (Batteries NOT Included) (1piece)

$7.99 on Amazon

#7 🔥 Flo Smart Water Leak Moen Flo Smart Water Leak Detector, Water Sensor Alarm for Home, 1-Pack, White, 920-004

$44.98 on Amazon

#8 Leak Alert Water Leak Zircon Leak Alert Water Leak Detector & Flood Sensor Alarm/Water Leak Sensor with Dual Leak Alarms 90Db Audio/Battery Powered (2 Pack) Batteries Not Included (72311) White

$27.99 on Amazon

#9 🔥 500 Foot Range Wireless Guardline 500 Foot Range Wireless Driveway Alarm [1 Motion Detector Alarm Sensor & 1 Receiver] Weatherproof Outdoor Security Alert System for Home & Property

$44.99 on Amazon

#10 Pipe Blockage Detector Yeipower Pipe Blockage Detector Locators-Sensor - Water Pipe Wall Scanner 40M Pipeline Detector Metal PVC Water Pipes Clogging Tool

$144.99 on Amazon

#11 🔥 1320 Foot Range Wireless Guardline 1320 Foot Range Wireless Driveway Alarm [2 Motion Detector Alarm Sensors & 1 Receiver] Weatherproof Outdoor Security Alert System for Home & Property

$129.99 on Amazon

#12 Motion Sensor Infrared Motion Sensor Infrared PIR Movement Detector Outdoor Sensor Light Switch US

$9.49 on Ebay

#13 🔥 10 Year Smoke and Carbon Ecoey 10-Year Smoke and Carbon Monoxide Detector, Dual Sensor Smoke CO Alarm with Built-in Battery and Silence Function,FJ183-A,4 Packs

$119.99 on Amazon

#14 Pipe Blockage Detector Yeipower Pipe Blockage Detector Locators-Sensor - Water Pipe Wall Scanner 30M Pipeline Detector Metal PVC Water Pipes Clogging Tool

$126.99 on Amazon

#15 DC12 24V NPN PNP 3 Wire Taidacent DC12-24V NPN PNP 3 Wire Inductive Proximity Limit Switch Metal Detector Proximity Sensor Iron Induction Micro Proximity Switch Sensor (NPN Normally Open, H2)

$9.98 on Amazon

#16 Water Sensor Alarm Leak SECRUI Water Sensor Alarm Leak Detector: 120db Water Leak Detector, Water Sensor Alarm for Home Basement Floor, Flood Leakage Drip Water Detection Alert Devices

$37.99 on Amazon

#17 Carbon Monoxide Detector CO VLAIAN Carbon Monoxide Detector,CO Gas Monitor Alarm Detector,CO Sensor with LED Digital Display for Home,Depot,Battery Powered

$11.99 on Amazon

#18 (2 Pack) 3.6V 3600mAh YUTSUJO (2-Pack) 3.6V 3600mAh LS17500 Battery, Replacement for SAFT LS17500, Emergency Backup, Data Collection, AMR Add-ons, Smoke Alarms, Carbon Monoxide Detectors, Intrusion Sensors, Fleet Monitoring

$19.99 on Amazon

#19 Air Quality Detector LIEBEWH Air Quality Detector, PM2.5 Sensor Module High Accuracy Detection Built‑in Fan PM1.0 PM2.5 PM10 PMS7003 0 Error Alarm Rate

$20.68 on Amazon

#20 DC12 24V NPN PNP 3 Wire Taidacent DC12-24V NPN PNP 3 Wire Inductive Proximity Limit Switch Metal Detector Proximity Sensor Iron Induction Micro Proximity Switch Sensor (NPN Normally Open, F2)

$12 on Amazon