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Shop the best SALE offers on 3,258 low price detectors. SAVE on discount and clearance detectors in the Fruugo SALE, with big savings and cheap deals on Viewleaf. Buy detectors online safely in the Fruugo SALE, with secure payment and fast shipping to Canada.

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1 - 32 of 3,200
Tuya Smart WiFi Smoke Detector, Smart Controlled Sensor Real-Time Monitoring, Remote Alarm Notification
$21.95 Save $2.00 RRP: $23.95
1080P Tuya Smart Life Home Digital Viewer Peepholes EU PLUG Silver
$69.00 Save $5.00 RRP: $74.00
Soil sensor temperature humidity PH value salt RS485 detector
$104.00 Save $15.00 RRP: $119.00
Water Leakage Detector Kit High Sensitivity Water Pipe Leakage Monitor Tester with Earphone Headphone for Home 100240V EU Plug
$79.00 Save $25.00 RRP: $104.00
USB Professional Water Pipe Leakage Detector Water Pipeline Leak Detector Plumbing Engineering Leak Detection Device EU Plug 100‑240V
$79.00 Save $20.00 RRP: $99.00
Tuya Zigbee Smart Light Sensor Illuminance Brightness Detection Home Automation Smart Home Detector APP Control
$23.95 Save $7.00 RRP: $30.95
Water Level Indicator Alarm Water Level Alarm Sensor Waterline Indicating Alarm Low or High Water Level Sensor Alarm with Silencer Switch
$94.00 Save $45.00 RRP: $139.00
Tuya Smart Zigbee Rain Sensor IP65 Waterproof Rain Detection Water Leak Sensor Real Time APP Monitoring Alert B
$15.95 Save $7.00 RRP: $22.95
Multifunctional leak detector/sound recorder, suitable for leak detection in various building pipes.
$34.95 Save $124.05 RRP: $159.00
6 in 1 Water Quality Tester High Accuracy Portable TDS EC COD Meter Water Quality Test Pen
$89.00 Save $30.00 RRP: $119.00
Pipe Leak Detector Professional High Sensitivity Dual Probe Water Leakage Listens Tester for Indoor Outdoor 100‑240V EU Plug
$79.00 Save $25.00 RRP: $104.00
Fluorescence Dissolved Oxygen Meter Detector Sensor Waterproof Aquaculture Device 12‑24V
$189.00 Save $50.00 RRP: $239.00
Water Pipe Leak Detector Portable Compact Rechargeable Wall Water Leakage Tester for Home
$26.95 Save $8.00 RRP: $34.95
6 in 1 Bluetooth Water Quality Tester PH ORP EC TDS CL TEMP Digital Swimming Pool Residual Chlorine Monitor for Hydroponic Aquarium
$139.00 Save $30.00 RRP: $169.00
PH‑06 Portable Water Quality Tester PH Meter Test Pen for Aquaculture Water Testing
$30.95 Save $9.00 RRP: $39.95
Pipe Leak Detector with Double Probe Professional High Sensitivity Rechargeable Water Leak Detector
$54.00 Save $15.00 RRP: $69.00
Air Conditioner Flashlight Leak Detector Professional Car Repair Tool with UV Protective Glasses for Automobile
$31.95 Save $9.00 RRP: $40.95
7 in 1 Multi‑Functional Water Quality Tester Water Quality Monitor for Laboratory Aquarium
$229.00 Save $70.00 RRP: $299.00
Water Leakage Detector Zinc Alloy Double Sided Induction Dark Pipe Leak Monitor for Underground Pipeline
$379.00 Save $110.00 RRP: $489.00
F999R Leak Detector with 4 Gear Adjustment Automatic Noise Reduction Gas Water Floor Heating Leakage Detector
$439.00 Save $135.00 RRP: $574.00
C-100 Multifunctional 5 in 1 Salinity TDS EC Seawater Test Pen Water Quality Tester Detector
$44.95 Save $14.05 RRP: $59.00
Tuya WiFi Intelligent Atmospheric Pressure Sensor with Temperature and Humidity Detection Function Integrated Home Automation Device
$37.95 Save $11.00 RRP: $48.95
Water Pipe Leakage Detector Intelligent High Sensitivity Underground Acoustic Water Leakage Detector for Site Construction Car Maintenance
$59.00 Save $15.00 RRP: $74.00
Flashing LED Stop Sensor With Adjustable Stand Auto Parking Detector For Garage Port
$59.00 Save $15.00 RRP: $74.00
Water Alarm High Sensitive Leak Detector for Home Use
$17.95 Save $13.00 RRP: $30.95
Smart Sound Light Alarm Multifunction 90dB USB Wireless WiFi Sound Light Siren Sensor for Home Security
$41.95 Save $12.05 RRP: $54.00
Skin Hair Detector 1MP Camera Wireless WIFI Mobile Phone Oil Dry Hair Follicles Scalp Detector
$84.00 Save $55.00 RRP: $139.00
PH CL2 Level Water Quality Tester Professional Portable Chlorine PH Meter for Swimming Pool Spa
$59.00 Save $20.00 RRP: $79.00
Water Leak Alarm Detector 120dB Loud Home Sink Fish Tank Pump Overflow Leakage Sensor
$15.95 Save $5.00 RRP: $20.95
5500W 220V Mini Instant Hot Smart Water Heater Easy Installation for Kitchen Bathroom (White)
$129.00 Save $40.00 RRP: $169.00
Water Pipe Leakage Meter High Strength Dual Probes Pipeline Leakage Detection Tool with Battery
$59.00 Save $20.00 RRP: $79.00
Water Leak Detector High Leak Alarm for Basement Kitchen Bathroom White Alarm Sound 1Pcs
$22.95 Save $10.00 RRP: $32.95