Life Basis Radon Detector for Home, Smart Radon Monitor Fast Capture of Fluctuating Levels, Radon Tester Short & Long-Term Monitoring with Alert Notifications - Connected Mobile App & WiFi

Radonova Radtrak³ Radon Detector for Home - Long Term (90 Days to 1 Year) Radon Test Kit for Home - Reliable Accurate Readings - Radon Test Kit Lab Analysis Included - 1 Detector

-14% $50.96

Natural Gas Detector, Gas Leak Detector with a 11inch Probe to Situate Combustible Gas Leaks for Propane, Natural Gas, Methane, Butane, LPG in RV, HVAC, Home, Measuring PPM or%LEL

$49.99

Natural Gas Leak Detector with Audible & Visual Alarm, Portable Gas Sniffer to Locate Combustible Sources Like Methane, Propane for Home (Includes Batteryx2)-GD15J

-17% $15.39

2 in 1 Gas Leak Detector, IVOLWIN Natural Gas Leak Detector with Foldable Screwdriver, Audible & Visual Alarm, Portable Gas Detector for Home Natural Gas, Methane, Propane and Combustible Gases

-41% $9.99

HQRP 2-Pack Battery Compatible with TIF8800, TIF8800A, TIF8806, TIF8806A, TIF8850, TIF8900-A Combustible Gas Detector Meter Test Equipment, NP-5459, NP5459 405421-00 ANIC0286 Robinair

$11.91

SwitchBot WiFi Water Sensor 4 Pack, Smart Water Leak Detector, 100dB Adjustable Alerts & App Alerts, IP67 Waterproof, Wireless Detector for Kitchen, Bathroom, Basement, No Hub Required (Support 2.4G)

$65.99

WiFi Water Leak Detector 3 Pack, Smart Water Alarm with Leaks & Drips Detector, Smart Home Kit with Expandable Other Smart Sensors for Kitchen/Bathroom/Sink/Laundry/Flood, Adjustable Alarm & App Alert

-15% $32.99

YoLink FlowSmart NSF Water Meter, Smart Water Usage Monitor and Water Leak Detection: 2 Inch Advanced Smart Home Water Meter, Hub Included

$569.99

YoLink FlowSmart NSF Water Meter, Smart Water Usage Monitor and Water Leak Detection: 1.5 Inch Advanced Smart Home Water Meter, Hub Included

-4% $419.99

WiFi Water Level Detector with Dual Probe, Smart High/Low Water Level Sensor Alarms, Detached 16.4FT Detection Line, Left and Right Dual Alarms, Remote App Monitoring, Dual Alerts, AAA Battery Powered

-22% $28.49

Airthereal Water Leak Detectors 2-Pack, 120dB Adjustable Audio Alarm Sensor, Sensitive Leak and Drip Alert, for Kitchen Bathroom Basement (Battery Included)

$19.99

GAGALOR White Color SS1 Float Switch for HVAC Condensate Overflow Safety Sensor Accessories with 3/4 Adaptor

$14.88

Honeywell CHW3610W1001 Wi-Fi Water Leak And Freeze Detector, 1 -Pack

-18% $89.00

Ximimark 2Pcs Water Leak Alarm Flood Level Bath Tub Sink Overflow Detector Sensor Home Garage Kitchen Security Alert 120db

$8.79

Risinglink Smart Water Leak Detector, Zone Water Detector, WiFi-Enabled with 6.5 ft Sensing Cable, Real-Time Notifications via Text, Email, and Audio, Battery Powered

-15% $67.99

WiFi Door Window Sensor: Smart Window Detector, Tuya Smart Alarm with Free Notification, Smart Home Security System, Compatible with Alexa Google Home (1 Pack)

-38% $8.49

U.S. Solid Water Leak Detector - Water Leak Detect and Protect System with 3/4" Brass Motorized Ball Valve, Controller and 3 Sensors

-9% $100.23

U.S. Solid Water Leak Detector - Water Leak Detect and Protect System with 1" Brass Motorized Ball Valve, Controller and 3 Sensors

-8% $105.48

Water Pipe Leakage Monitor, Underground Water Pipe Leakage Detector Enhanced High Strength Sound Intensifier Water Leak Tester Water Pipeline Detection Tool for Site Construction(US)

-16% $35.01

WESUA SS2 Condensate Overflow Float Switch Safety Water Level Sensor PVC for HVAC Drain Pan 3/4 inch Adaptor White Color

$16.99

KooingTech 20000X Underground Water Leak Detector, -70D db Double Probe Water Leak Detection Device, AC100-240V US Plug Water Pipe Monitor Kit for Construction Pipeline Inspection

$39.39

RV Carbon Monoxide & Propane Gas Alarm, Briidea Dual LP/CO Alarm with Separate LED Indicator Light, 100dB Loud Alarm, Provide You with Early Warning to Ensure Safety, 12 VDC, White

-1% $56.99

TopTes Guard-122 4 Gas Monitor Multi Gas Detector for H2S, CO, LEL, O2, 0.5s Response, Triple Alarms, Sensor Positioned at The Top for Unobstructed Detection, Safety Explosion-Proof for Work, Home

-5% $84.99

2 Pack MQ-2 Smoke LPG Butane Hydrogen Gas Sensor Detector Module

$7.99