• Skip to content
  • Skip to products
Fruugo
    • 0

    Filters

    • Keyword Search
    • Categories
      • Water & Flood Detectors
        ×
    • Brands
      • GreenZech (2)
      • Shanghai Yangxin (2)
      • Unbranded (2164)
      • Viewleaf (1)
      • unbrand (64)
    • Size
      • 2pcs (24)
      • 3pcs (24)
      • 1pcs (18)
      • 100.00X2.50X0.80CM (15)
      • 19*120cm (10)
      • 19*150cm (10)
      • 19*215cm (10)
      • Normal (10)
      • 1pc (6)
      • 9.00X3.00X1.50CM (6)
      • 30*70cm (5)
      • 4.3cm sets (5)
      • 5cm sets (5)
      • 8.2x8.2x3.2cm (5)
      • 25*100cm (4)
      • 25*120cm (4)
      • 25*150cm (4)
      • 3.8*2.8CM (4)
      • 5pcs (4)
      • 5x3.2cm (4)
    • Colour
      • White (490)
      • Black (100)
      • Multicolor (61)
      • As Shown (33)
      • white (33)
      • Green (19)
      • 1 (18)
      • 5 (16)
      • Blue (10)
      • Solid (10)
      • Red (8)
      • Yellow (8)
      • Assorted Color (6)
      • Grey (5)
      • As shown (4)
      • Silver (4)
      • 2 (3)
      • Multi (3)
      • 2 points (2)
      • 25*100cm (2)
    • Price
      • Under $20
        ×
      Clear
    • SALE (1614)

    Under $20 Water & Flood Detectors

    Shop the best prices on 2,233 great value under $20 water & flood detectors. Shopping for water & flood detectors is easy with Fruugo, with SALE discounts, offers and savings on GreenZech, Shanghai Yangxin and Viewleaf. Buy water & flood detectors online safely with Fruugo, with secure payment and fast shipping to Singapore.

    Filters
    1 - 32 of 2,233
    Tuya Smart WiFi Smoke Detector, Smart Controlled Sensor Real-Time Monitoring, Remote Alarm Notification
    $22.95 Save $2.00 RRP: $24.95
    High Sensitive Leak Detector Loud Water Leak Alarm without Battery for Basement Apartment Kitchen Bathroom (White)
    $15.95 Save $48.05 RRP: $64.00
    Wireless Water Alarm Independent Battery Powered Water Alarm Sensor Detector 85dB Sounder Water
    $4.95 Save $21.00 RRP: $25.95
    Wifi Gas Leak Detector And Fire Alarm Lcd Display Wall Mounted App Control Smart Wi-fi Natural Gas/ Lpg Tester Methane Alarm Buzzler With Sound Ligh unbrand
    $14.95 Save $8.00 RRP: $22.95
    2025 Smartlife App Wifi Water Sensor Water Leak Detector Alarm Home Control Ip67 Works With Tuyasmart /
    $13.95 Save $14.00 RRP: $27.95
    Temperature Sensor Induction Cooker Temperature Detector Electric Cooker Temperature Sensor
    $7.95 Save $46.05 RRP: $54.00
    Home Alarm Water Leak Sensor Leakage Detector Alert Overflow Security System
    $14.95
    Zigbee Smart Vibration Sensor Detection Tuya Smart Life APP Notification Real-Time Motion Vibration Alarm Smart Home
    $15.95 Save $5.00 RRP: $20.95
    WiFi Smart Temperature and Humidity Switch with 1M Sensor 16A Temperature Humidity Switch Supports
    $20.95 Save $38.05 RRP: $59.00
    Tuya Wifi Smart Water Sensor Leak Detector Flood Water Leakage Alarm Security System For Alexa Home
    $5.95
    Float Level Sensor Pool Water Level Switch water level float sensor switch for tank Swimming Pool Garden Aquarium working
    $16.95 Save $16.00 RRP: $32.95
    90 dB Household Wireless Water Leak Detector Sensor Water Leakage Alarm for Home Kitchen Toilet
    $21.95 Save $7.00 RRP: $28.95
    Water Activated Flood Barrier For Home, Basement, And Garage | Creative, Durable And Reusable | Absorbent Flood Prevention Tool,Promotion
    $18.95 Save $18.00 RRP: $36.95
    120dB Water Leakege Sensor Overflow Level Alarm Rain Detection for Bathroom Kitchen Basement Garage
    $17.95 Save $5.00 RRP: $22.95
    Reliable Sound Light Alarm System ABS Emergency Alert System Easy to Use for Effective Emergency Notifications Yellow
    $16.95
    Tuya Smart Zigbee Rain Sensor IP65 Waterproof Rain Detection Water Leak Sensor Real Time APP Monitoring Alert B
    $19.95 Save $11.00 RRP: $30.95
    Zigbee Water Leak Detector for EWelink Zigbee Water Detector APP Remote Control Water Sensor for Kitchens Basements
    $11.95 Save $11.00 RRP: $22.95
    2Pcs Tuya WiFi Smart Water Leak Sensor Remote Monitoring Water Overflow Level Detector 80dB Sound Alarm System
    $20.95 Save $19.00 RRP: $39.95
    Graffiti Zigbee Flood Sensor Smart Water Sensor Leakage Alarm Flood Sensor Multifunction Flood Sensor unbrand
    $21.95 Save $11.00 RRP: $32.95
    Tuya Water Leakage Sensor 433MHz Security Flood Detector Flood Sensor Wireless Detector Smart Home Security Alarm
    $14.95 Save $16.00 RRP: $30.95
    Tuya WiFi Smart Water Leak Sensor 90dB Leak Alarm Dual-Sided Water Level Sensor Remote Monitor Smart Home
    $18.95 Save $19.00 RRP: $37.95
    Tuya Water Leakage Sensor Detector WiFi Flood Water Leak Sensor Home Protection Alarm System Smart Life APP Control
    $13.95 Save $13.00 RRP: $26.95
    Water Leakage Detection Alarm Rechargeable Ergro Water Pipes Fire Pipeline Automotive Detecti
    $2.95 Save $2.00 RRP: $4.95
    3-in-1 Tds Water Quality Tester High Accuracy Digital Water Testing Kit For Drink Water Water Tester Integrated
    $12.95 Save $12.00 RRP: $24.95
    Tuya Zigbee Water Level Sensor Smart Water Leakage Alarm Detector Overflow Security Protection Tuya
    $16.95 Save $2.00 RRP: $18.95
    Water Leakage Detector Sensor Water Level Sensor Probe 3 Meter Cable
    $7.95
    Automatic Operation Water Leak Detector Water Alarm Sensor, Water Leakage Alarm
    $4.95 Save $15.00 RRP: $19.95
    Smartlife App Wifi Water Sensor Water Leak Detector Alarm Home Control Ip67 Works With Tuyasmart /
    $4.95 Save $7.00 RRP: $11.95
    Tuya WiFi Smart Water Leak Detector Water Overflow Flood Leakage Sensor Remote Monitor Security Sound Alarm System
    $11.95
    Plastic Water Flow Switch Vertical/Horizontal Water Sensor Magnetic AC 220V Black
    $18.95
    Wired Water Immersion Sensor Water Level Overflow Alarm Leak Detector Switch Probe for Home House Security Alarm System
    $14.95 Save $5.00 RRP: $19.95
    Tuya Smart Wifi Water Flood Sensor Water Leakage Detector Send Alert When Leak Is Detected Work Wit
    $5.95 Save $6.00 RRP: $11.95
    1 2 3

    ...

    70

    Payment methods:

    About Fruugo

    • Our mission
    • Company details

    For customers

    • Contact & Help
    • Where's my order?
    • Other FAQs

    For retailers

    • Join us

    Fruugo in other countries

    Loading

    Other languages

    Loading
    • Site Map
    • Terms of Use
    • Manage Cookies
    • Privacy Notice
    © 2006–2026 Fruugo.com Ltd. All rights reserved.