detectors and sensors best sellers

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

$31.29 on Amazon

#2 🔥 🆕 Fire Alarms Smoke Detectors RENSECUM Fire Alarms Smoke Detectors, Photoelectric Sensor Smoke Alarm Battery Operated, Fire Alarm with Test Button & Low Battery Signal, LED Warning Light 85 dB Alarm Sound for Bedroom and Home, 3 Pack

$29.99 on Amazon

#3 Enegitech CR123A 3V Lithium Enegitech CR123A 3V Lithium Battery, 3 Volt 123 123A CR17345 Battery for Motion Detector Alarm Sensors 12 Pack

$15.19 on Walmart

#4 2 Pack Upgraded Combination Yfwsrecinoe 2 Pack Upgraded Combination Smoke and Carbon Monoxide Alarm Detector, Dual Sensor Smoke Alarm&Carbon Monoxide Detector (Includes Battery)

$25.52 on Amazon

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

$116.11 on Amazon

#6 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

$22.29 on Amazon

#7 Gas Dryer Heat Detector Gas Dryer Heat Detector Flame Sensor for GE WE4X448 AP2042635 PS268031

$21.64 on Ebay

#8 2 Pack Smoke Detector XUK 2 Pack Smoke Detector, Photoelectric Sensor Battery-powered Fire Smoke Alarm, LED warning light 85 dB alarm sound, low battery warning, mute and test buttons, suitable for living rooms, bedrooms, etc.

$16.58 on Amazon

#9 Pulse Metal Detector Pulse Metal Detector Metal Sensor Metal Search Clone PI-W DIY Kit M158.1 Module

$22.10 on Ebay

#10 Motion Sensor Infrared MARKENLOS Motion Sensor Infrared PIR Movement Detector Outdoor Sensor Light Switch

$6.85 on Ebay

#11 Instapark IN07A Water Instapark IN07A Water Leak Leakage Detection Detector SoundAlarm Sensor Safe Lot

$7.10 on Ebay

#12 🔥 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 Closed, F2)

$11.40 on Amazon

#13 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)

$10.20 on Amazon

#14 🆕 Digital Gas Leak Detector Digital Gas Leak Detector Alarm Sensor Propane Butane Methane Natural Gas Catch

$19.66 on Ebay

#15 Digital Gas Leak Detector MM ELECTRONICLES Digital Gas Leak Detector Alarm Sensor Propane Butane Methane Natural Gas Catch

$19.72 on Ebay

#16 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)

$13.98 on Amazon

#17 🔥 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, F5)

$18.28 on Amazon

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

$113.99 on Amazon

#19 Digital Gas Leak Detector Digital Gas Leak Detector Alarm Sensor Propane Butane Methane Natural Gas Catch

$17.94 on Ebay

#20 🆕 2PCS Motion Sensor Infrared 2PCS Motion Sensor Infrared PIR Movement Detector Outdoor Sensor Light Switch

$14.66 on Ebay