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Shop the best prices on 4,701 great value detectors. Shopping for detectors is easy with Fruugo, with SALE discounts, offers and savings on GreenZech, Chacon, Fstniceted and more. Buy detectors online safely with Fruugo, with secure payment and fast shipping to Canada.

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769 - 800 of 3,200
Water Level Detection Sensor Module Infrared Liquid DoubleLevel Alarm Control
$43.95 Save $25.05 RRP: $69.00
Feature: 1. Widely Used: Water pipe leakage monitor is practical and suitable for leakage detection
$64.00 Save $15.00 RRP: $79.00
Tuya WiFi 2P Smart Energy Meter Power KWh Meter Earth Leakage over Under Voltage Protector Work with Tuya Smart Life
$29.95 Save $8.00 RRP: $37.95
Rankomu 12V DC Water Level Controller Module, Liquid Water Level Detection Sensor Controller DIY Module Kit
$15.95 Save $18.00 RRP: $33.95
Wifi Smoke Detector Smart Fire Alarm Sensor Wireless Security System Smart Life
$40.95
2Pcs Tuya Smart Wifi Rain Sensor Real-Time Rainwater Detector Smart Life App Controlled for House Outdoor
$25.95 Save $12.00 RRP: $37.95
2PCS PCFS-IR212-55 Floor Scrubber Water Level Sensor IP68 Water Detector High Precision Measurement Tube Diameter
$9.95 Save $4.00 RRP: $13.95
Tuya WiFi Water Sensor Leakage Alarm Flood Leak Detector Smart Home Remote Control Smart Home Security Protection
$19.95 Save $9.00 RRP: $28.95
SONOFF SNZB-05P Zigbee Water Leak Sensor Real-Time Dripping Detection, Multiple Alerts, Extended Support
$28.95 Save $12.00 RRP: $40.95
Tuya ZigBee Water Level Sensor Leakage Alarm Flood Leak Detector Smart Home Water Alert Overflow Alarm Security System
$18.95 Save $5.00 RRP: $23.95
Zigbee Water Leak Detector 2.4GHz Water Sensor Alarm, Alarm Wireless Water Leak Sensor for Basement, Kitchen, Bathroom
$24.95 Save $7.00 RRP: $31.95
2PCS PCFS-IR212-55 Floor Scrubber Water Level Sensor IP68 Water Detector High Precision Measurement Tube Diameter
$9.95 Save $3.00 RRP: $12.95
Portable Electrochemical Sensor CO Tester LCD Screen PPM Detector with Sound Light Alarm and Low Battery Reminder Black
$25.95 Save $7.00 RRP: $32.95
WiFi Smart Human Presence Sensor Luminance/Distance Detection Tuya Smart Life Home Automation for Alexa with Bracket
$25.95 Save $8.00 RRP: $33.95
Tuya ZigBee Temperature Humidity Sensor Smart Home Temperature Sensors Works with Alexa Google Assistant Smart Life
$14.95 Save $4.00 RRP: $18.95
Water Sensor 90dB Alarm Water Leak Detector Alert Monitoring of Leaks and Drip Alarm for Kitchen Bathroom Basemen
$13.95 Save $4.00 RRP: $17.95
Tuya WiFi Temperature and Humidity Sensor Indoor Humidity Sensor APP Monitoring for Alexa Google Home Assistant
$13.95 Save $4.00 RRP: $17.95
Smart Zigbee Temperature and Humidity Detector Sensor APP Real Time Monitoring LCD Screen Diaplay Works
$12.95 Save $4.00 RRP: $16.95
Tuya Zigbee water sensor flood detector
$14.95 Save $4.00 RRP: $18.95
Tuya WiFi Water Valve Consumption Flow Rate Meter Smart Life Water Leakage Detection Alarm for Alex
$239.00
Smoke Fire Detector WIFI Support for Tuya APP with Voice Alert and LED Light Smart Wifi Smoke Alarm for Home
$44.95 Save $29.05 RRP: $74.00
Chlorine Testing Pen 2-In-1 Water Quality Tester Measuring for Aquarium Swimming Pool
$28.95 Save $18.00 RRP: $46.95
Water Quality Tester Water Quality Tester Ph Water Tester Ph Chlorine Chlorine Meter Meter Water Tester For Pool Spa Swimming Pool
$59.00 Save $20.00 RRP: $79.00
Alarm Sensor Single Brass Ball Valve DualWay Water Leaking Detection System Kit
$129.00 Save $40.00 RRP: $169.00
Water Sensor,WiFi Water Detector Alarm Leak Detector, for Home with 100dB Adjustable Alarm and App Alerts
$18.95 Save $8.00 RRP: $26.95
Tuya Zigbee Ultrasonic Liquid Level Water Tank Monitor Sensor with Real-Time Alarm Notification APP Control US Plug
$74.00 Save $45.00 RRP: $119.00
Water Leak Sensor Sound Alarm System Smart Home Automation Water Overflow Level Detector Residential Security Protection
$9.95 Save $13.00 RRP: $22.95
LILYGO T-BHl260 AI Smart Sensor High Precision, Energy Efficient, IoT Enabled Device for Home Automation and Industrial Use
$17.95 Save $5.00 RRP: $22.95
WiFi Hygrometer Thermometer Indoor,Wireless Smart Temperature Humidity Monitor with Smart Life App Notification
$21.95 Save $6.00 RRP: $27.95
Mini Switch Cut On/Off Marine Boat , Single Circuit
$24.95
Tuya Smart WiFi Door Sensor 80dB Sound Window Sensor Smart Life Arm Disarm Door Sensor APP Alert Alarm Door Sensor
$21.95 Save $6.00 RRP: $27.95
Zigbee Smart Rain Sensor with Gateway
$46.95