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Amazon Price as of 02/25/2025 12:03 GMT+00:00
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average price $20.92
$0.93 cheaper than average
$19.96
$21.98
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WiFi Hygrometer Thermometer Sensor: Wireless Smart Temperature Humidity Monitor with App Notification Alert, Data Storage Export, Calibration Function, Compatible with Alexa (White-1PCS)
-11% $14.99
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WiFi Hygrometer Thermometer Sensor: Wireless Smart Temperature Humidity Monitor with App Notification Alert, Data Storage Export, Calibration Function, Compatible with Alexa (White-4PCS)
-14% $39.99
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WiFi Water Ieak Detector: Smart Water Ieak Sensor with 80dB Alarm and App Alerts, Wireless Water Sensor with App Remote Control, Water Alarm for Home, Laundry, Kitchen, Basement
-14% $17.99
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WiFi Human Presence Sensor: Smart Motion Sensor with 5.8GHz mmWave Radar, Zone Positioning, App Notification Alerts, Real-time Human Occupancy Sensor for Home Automation, Support Alexa
-7% $23.17
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WiFi Smart Thermometer Hygrometer: Wireless Temperature Humidity Sensor with Notification Alert, Data Storage & Export, Calibrable Digital Temperature Monitor, Compatible with Alexa (4-PCS)
-12% $42.99
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WiFi Thermometer Hygrometer: Digital Indoor Temperature Humidity Monitor with App Notification Alert, Free Data Storage Export, Backlit LCD Screen, Smart Temperature Sensor Compatible with Alexa
-5% $21.55
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WiFi Caregiver Pager Call Button: Wireless Nurse Alert Call Bell, Personal Alarm Call Button with App Alerts, Emergency Alert Pager for Elderly Patients (2 SOS Buttons+1 Siren)
-17% $32.99
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WiFi Door and Window Sensors,Tuya Smart Alarm with Free Notification APP Control Home Security Alarm System, No Hub Required,Compatible with Alexa, Google Home (3-Pack)
-5% $28.49
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WiFi Hygrometer Thermometer Sensor: Wireless Smart Temperature Humidity Monitor with App Notification Alert, Data Storage Export, Calibration Function, Compatible with Alexa (White-2PCS)
-11% $24.68
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WiFi Door Sensor Alarm: Smart Door Window Sensor with 90db Alarm & App Notification, Wireless Door Open Contact Sensor for Home Security Burglar Alert Compatible with Alexa Google Home (1pack)
-6% $14.99
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WiFi Caregiver Pager Call Button: Wireless Nurse Alert Call Bell, Personal Alarm Call Button with App Alerts, Emergency Alert Pager for Elderly Patients (3 SOS Buttons+1 Siren)
-16% $35.14
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WiFi Thermometer Hygrometer: Intelligent Temperature Humidity Sensor with App Remote Control & Data Storage Export, Indoor Temperature Humidity Monitor Compatible with Alexa (1Pack-Black)
-10% $15.26
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WiFi Smart Thermometer Hygrometer: Wireless Temperature Humidity Sensor with Notification Alert, Data Storage & Export, Calibrable Digital Temperature Monitor, Compatible with Alexa (1-PCS)
-12% $16.58
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WiFi Door Sensor Alarm: Smart Door Sensor with 90db Real-time Alarm, App Notification, Wireless Door Open Contact Sensor for Home Security Burglar Alert Compatible with Alexa Google Home (2pack)
$25.99
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WiFi PIR Motion Sensor: Smart Indoor Motion Detector with App Notification Alerts & Records, Battery Included, Infrared Movement Detector for Remote Monitor and Home Automation (4-Pack)
-9% $38.98
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PUTECCH Gas Leak Detector,Natural Gas Detector for Home, Portable Combustible Gas Sniffer with Visual & Audible Alarm to Locate Leaks Like Methane, Propane, Butane (Batteries Included) (Yellow)
$20.99
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Cheffort Oxygen Gas Meter, Digital Portable Automotive O2 Gas Tester, Digital LCD Display Alarm O2 Concentration Measurement Tester Device for Car, Climbing, Tunnel, Laboratory and Industry
$119.95
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VIVOHOME Natural Gas Leak Detector with 3000mAh Rechargeable Battery and Audible Visual Alarm, 3 Modes Sensitivity, Portable Combustible Gas Leak Tester Sniffer Detector Like Propane for Home RV
$79.99
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Kidde KN-COEG-3 Nighthawk Plug-in Carbon Monoxide and Explosive Gas Alarm with Battery Backup (Pack of 2)
$189.99
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Oxygen Detector by Forensics | Industrial Wall Mount | Continuous Monitoring | USA NIST Traceable Calibration | Explosion Proof | Sound & Light Alarms | Relay Output | 0-30% O2 |
$739.45
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HYDROGEN Gas Detector, Meter & Analyzer by FORENSICS | USA NIST Calibration & Certificate | Dust & Explosion Proof | USB Recharge | Sound, Light and Vibration Alarms | 0-1000 ppm |
$397.45
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YoLink Smart Home Starter Kit: Hub & Water Leak Sensor 4 with 105dB Audio Alarm 3-Pack, SMS/Text, Email & Push Notifications, Freeze Warning, LoRa Up to 1/4 Mile Open-Air Range, w/Alexa, IFTTT
$69.99
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GAEYAELE Liquid Timer Control Relay Electronic Liquid Level Controller 10A (GRL8-01,AC/DC24V-240V)
$24.90
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YoLink Water Leak Detector 4 with 105dB Audio Alarm, App Push, Email Alerts and Limited Text, MoveAlert Function, Freeze Warning Water Sensor Alarm w/ Alexa, IFTTT - 1/4 Mile Long Range, Hub Required
$31.99
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Water Leak Detector 5-Pack, 100dB Water Sensor Alarm, Leakage Detection Devices for Home Pipe/Drain/Sink/Faucet Drip, Floor Flooding in Basement/Bathroom/Kitchen/Toilet/Laundry Room
$49.99
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KKnoon Wireless Ultrasonic Water Level Monitor Tank Liquid Level High/Low Alarm Solar Powered Water Level Sensor Water Level Indicator Gauge IP65 Waterproof
$90.99
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4 Pack WiFi Door Sensor: Smart Window Contact Sensor, App Alerts, Programmable with Tuya/Smart Life Devices for Home Security & Smart Home Automation, Compatible with Alexa Google Assistant
$39.99
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FloodStop Water Heater Leak Detector Kit with Automatic Water Shut-Off and Visual/Audible Alarms, 3/4" Compression
$195.43
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Filotimo Water Leak Detector, Lound Sound Sensor Alarm, Home Water Flooding Monitor Sink Overflow Monitoring Wet Moisture Alert Pipe Leakage Drip Detection Warning for Basement, Laundry, Bathroom
$11.99
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KERUI Wi-Fi Water Leak Sensor Alarm, Smart Water Detector with App Alerts for Kitchens, Basements, Bathrooms - 3 Pack, Battery Included
$29.99
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