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Under $20 Water & Flood Detectors

Shop the best prices on 1,663 great value under $20 water & flood detectors. Shopping for water & flood detectors is easy with Fruugo, with SALE discounts, offers and savings on Shanghai Yangxin and Sz-fr5a-i500375959. Buy water & flood detectors online safely with Fruugo, with secure payment and fast shipping to Australia.

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1 - 32 of 1,663
High Sensitive Leak Detector Loud Water Leak Alarm without Battery for Basement Apartment Kitchen Bathroom (White)
$17.95 Save $51.05 RRP: $69.00
Water Leak Detector Multi-Functional Sound Detector for Pipe Water Leak Suitable for Leak Detection of Various Pipe
$14.95 Save $7.00 RRP: $21.95
Zigbee Smart Vibration Sensor Detection Tuya Smart Life APP Notification Real-Time Motion Vibration Alarm Smart Home
$17.95 Save $5.00 RRP: $22.95
Wired Type Leakage Alarm Detector Water Sensor with 3.5mm Jack
$11.95 Save $5.00 RRP: $16.95
Temperature Sensor Induction Cooker Temperature Detector Electric Cooker Temperature Sensor
$8.95 Save $50.05 RRP: $59.00
10K Temperature Detector Probe for Air Conditioner NTC Thermistor Waterproof Rust Resistant Sensitive Reliable Detector Probe
$13.95 Save $8.00 RRP: $21.95
Tuya Smart Life WiFi Switch Relay Temperature Humidity Monitoring Thermostat Sensor Passive Dry Con
$1.95 Save $1.00 RRP: $2.95
Water Level Alarm Water Leakage Detector Overflow Alarm Full Water Alarm 120 DB Security Alarm Syste
$15.95
NTC Thermistor Temperature Sensor M8 Thread Probe Cable Tube Clamp Type Line Length 150mm SM-2YV
$16.95
Water Activated Flood Barrier For Home, Basement, And Garage | Creative, Durable And Reusable | Absorbent Flood Prevention Tool,Promotion
$20.95 Save $20.00 RRP: $40.95
For Alexa Wifi Water Leakage Detection Alarm Detector Tuya Switch Water Leakage Sensor Voice Controller Google Home
$14.95 Save $7.00 RRP: $21.95
Water Sensor 90dB Alarm Water Leak Detector Alert Monitoring of Leaks and Drip Alarm for Kitchen Bathroom Basemen
$13.95 Save $7.00 RRP: $20.95
Tuya WiFi Smart Water Sensor Leak Detector Flood Water Leakage Alarm Security System for Alexa Google Home
$16.95 Save $8.00 RRP: $24.95
Tuya Smart Zigbee Rain Sensor IP65 Waterproof Rain Detection Water Leak Sensor Real Time APP Monitoring Alert B
$18.95
Water Electrolyzer - Portable Water Quality Tester Lightweight Water Impurity Monitor Easy to Use Electrolyzer Test Monitor
$15.95 Save $9.00 RRP: $24.95
433MHz Wired Overflow Leakage Sensor Water Level Leak Detector Home Security Alarm With Battery
$16.95 Save $10.00 RRP: $26.95
Natural gas leak alarm warning sensor detector home safety tool with indicator light
$19.95 Save $12.00 RRP: $31.95
Water Leakage Sensor Flood Leak Liquid Detector Probe Alarm for Home Farm Security
$11.95 Save $18.00 RRP: $29.95
TuyaWiFi Smart Water Sensor Leak Detector Flood For home
$15.95
Sonoff SNZB-01P Zigbee Wireless Smart Scene Switch
$19.95 Save $1.00 RRP: $20.95
Home Alarm Water Leakage Spot Alarm Detector Flood Security Alarm
$17.95 Save $1.00 RRP: $18.95
2PCS PCFS-IR212-55 Floor Scrubber Water Level Sensor IP68 Water Detector High Precision Measurement
$3.95 Save $29.00 RRP: $32.95
Water Sensor,WiFi Water Detector Alarm Leak Detector, for Home with 100dB Adjustable Alarm and App Alerts
$17.95
Tuya Zigbee Smart Rain Sensor for Outdoor Wireless Real-Time Rain Detection IP67 Waterproof for Zigbee Hub Require
$19.95
Tuya WiFi SOS Panic Call Button Smart Life APP Rechargeable Battery
$21.95 Save $15.00 RRP: $36.95
Voltage Leak Detector Approach Electric Alarm 5 Gears Use
$8.95
Tuya Zigbee Water Leak Sensor Wireless Flooding Detector Water Leakage Detection Alert Water Level Overflow Alarm
$20.95 Save $11.00 RRP: $31.95
2X Overflow Water Immersion Alarm Detector Leak Alarm Water Level Overflow Detector Sensor Alarm
$18.95
Tuya Zigbee Smart Water Leak Sensor Water Overflow Level Detector
$15.95
Home Alarm Water Leakage Spot Alarm Detector 110db Smart Water Leak Sensor Detection Flood Alert Overflow Security Alarm System
$13.95
Tuya Smart Zigbee Rain Sensor IP65 Waterproof Rain Detection Water Leak Sensor Real Time APP Monitoring Alert B
$20.95
Water Level Sensor Water Leak Detector Water Alarms with Probe for Aquarium Fish for Tank Powered by Button Batteries
$20.95