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Shop the best prices on 4,709 great value detectors. Shopping for detectors is easy with Fruugo, with SALE discounts, offers and savings on GreenZech, Chacon, APC and more. Buy detectors online safely with Fruugo, with secure payment and fast shipping to Canada.

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417 - 448 of 3,200
G1/2in Thread Smart Infrared Induction Sensor Water Faucet Single Cold Tap for Hotel Hospital
$119.00
Secure Your Home with Our Smart WiFi Wireless Alarm System - App Alerts & Easy Setup
$169.00
Tuya Smart Wireless 3-in-1 Soil Sensor Smart Soil Health Monitor for Smart Gardening & Agriculture
$43.95 Save $20.05 RRP: $64.00
Tuya ZigBee Water Leakage Sensor Smart Home Water Immersion Sensor Automation Security Protection L
$15.95 Save $1.00 RRP: $16.95
Pedometer with Lanyard 7 Days Memory Steps Burning Calories Walking Distance Miles Kilometers LCD Pedometer
$27.95 Save $8.00 RRP: $35.95
Alarm,Wireless Water Alarm Independent Battery Powered Water Alarm Sensor Detector 85dB Sounder Water
$45.95 Save $33.05 RRP: $79.00
SMART SENSOR Handheld Portable Automotive Mini Combustible Gas Detector Gas Leakage Location Determine Tester with Sound and Light Alarm
$54.00 Save $30.00 RRP: $84.00
F999B Leaking Water Leak Detector Household Wall Leaking Pickup Leak Detector EU Plug
$189.00
Professional Dual Probe Pipe Leak Detector with Adjustable Sound Levels for Indoor/Outdoor
$94.00
ZigBee TUYA Smart Water Leak Detector, Flood Sensor, Remote Monitoring Via Tuya Zigbee Gateway, Wat
$16.95
Tuya Smart Zigbee Ultrasonic Water Tank Level Monitor Sensor EU Plug
$79.00 Save $15.00 RRP: $94.00
Water Sensor,WiFi Water Detector Alarm Leak Detector, for Home with 100dB Adjustable Alarm and App Alerts
$20.95 Save $11.00 RRP: $31.95
Tuya Smart Water Vavle WiFi Water Stop Check Valve Water Leak Sensor Shut Off Remote Control Timer for Alexa EU PLUG
$59.00 Save $30.00 RRP: $89.00
Water Pipe Leakage Monitor ‑70Ddb Sensitivity 20000X Sound Amplification Rechargeable Water Leakage Detector
$59.00 Save $15.00 RRP: $74.00
Water Leak Detector with Adjustable Frequency Control, 3‑Meter Depth Pipe Leak Detection Device for Home and Outdoor
$924.00 Save $475.00 RRP: $1,399.00
Zigbee Smart Water Leak Sensor with Flood Detection, Overflow Alarm, Wireless Connectivity, and Home Security System
$289.00 Save $150.00 RRP: $439.00
Zigbee Smart Vibration Sensor and Tilt Sensor for Home Security, Real-Time Monitoring, Compatible with Smart Life App
$39.95 Save $11.00 RRP: $50.95
Zigbee Compatible Water Leak Detector, Intelligent Wireless Alarm System to Protect Your Home from Leaks
$64.00 Save $35.00 RRP: $99.00
Water Leak Detector with 90 dB Alarm, Waterproof Leakage Sensor for Home, Basement, Bathroom, Under Sink, Water Heater
$26.95 Save $14.00 RRP: $40.95
Water Leak Automatic Shut-Off Valve Alarm with Immersion Sensor Cable for Household Overflow Protection
$59.00 Save $30.00 RRP: $89.00
Automotive Leak Detector Tool Set, 26Pcs A/C Leak Detection Tester for Air Conditioning Systems
$129.00 Save $40.00 RRP: $169.00
Water Alarm Detector, Water Leak Sensor, Alarm for Cellar, Flood Sensor
$34.95 Save $18.00 RRP: $52.95
Halogen Leak Detector For Air Conditioners With Battery Level Indicator Rugged Design Efficient Flammable Gas Detection
$69.00 Save $30.00 RRP: $99.00
Indicator Natural Gas Leak Alarm Sensor Detector Tester
$64.00 Save $35.00 RRP: $99.00
Water Leak Detector with Adjustable Frequency, Noise Isolation Headphones, Underground Pipe Locator
$924.00 Save $475.00 RRP: $1,399.00
Aluminum Flood Barrier with Waterproof Seal for Garage Basement Outdoor, Reusable Heavy Duty Panel 180x40cm
$499.00 Save $250.00 RRP: $749.00
Zigbee Water Sensor Water Detector for Home Remote Alarm Security Soaking Sensor Smart Home
$34.95
Ice Machine Water Level Float Sensor Water Level Control Switch
$16.95 Save $1.00 RRP: $17.95
3-in-1 Chlorine Meter CL2/H2/Temperature Meter Water Quality Tester
$33.95 Save $3.00 RRP: $36.95
ME201WCS Ultrasonic Water Level Sensor Smart Socket Real Time Monitor Tuya APP Wireless WiFi Remote
$129.00 Save $10.00 RRP: $139.00
P82D Water Alarm Battery Powered Water Water Detectors Leakage Alarm for Kitchen Bathroom & Water D
$13.95 Save $2.00 RRP: $15.95
1pcs 433mhz Water Leak Detector Sensor for Underground Basement Sump Pump Overflow Alarm Hub Requir
$12.95 Save $4.00 RRP: $16.95