Comparison numbers

31 Products researched
9 Research hours
630 Readers
26,357 Customer ratings

Best Water Alarms

Water Detector Comparison 2025

water alarm
water alarm
 interconnected smoke detector
interconnected smoke detector
 carbon monoxide detector
carbon monoxide detector
 smoke alarm
smoke alarm
 carbon dioxide detector
carbon dioxide detector
 gas detector
gas detector
 smart smoke detector
smart smoke detector
 fire extinguisher
fire extinguisher
Sort & Filter
Best Product
HomeMatic 151694A0
HomeMatic 151694A0
Amazon
Bestseller
Honeywell RWD21
Honeywell RWD21
Amazon
sebson GS153
sebson GS153
Amazon
Best Price
Smartwares FWA-1821
Smartwares FWA-1821
Amazon
Schabus 300240
Schabus 300240
Amazon
Moen 920-004 Flo
Moen 920-004 Flo
Amazon
Honeywell W1KS
Honeywell W1KS
Amazon
RatingHow we compare
Customer rating (from Amazon)
Available at
Manufacturer
Dimensions
Alarm
Areas of application
Power supply
IP protection class
App
Advantages
Shipping (Amazon)
Best Product
Best Product
AmazonHomeMatic 151694A0
Rating
Excellent01/2025

1

HomeMatic 151694A0
Customer rating
Amazon1,364 reviews
Check Price
Available at
71,69 £
see vendordays00£
see vendordays
Manufacturer
HomeMatic
Dimensions
1,2 x 3,1 x 3,1 in
Alarm
Areas of application
  • - Cellar
  • - Bath
Power supply
Battery, AAA battery, Power adapter
IP protection class
IP15, IP44, IP20, IP14
App
Advantages
  • App control
Shipping (Amazon)
see vendor
Check Price
Bestseller
Bestseller
AmazonHoneywell RWD21
Rating
Excellent01/2025

2

Honeywell RWD21
Customer rating
Amazon2,316 reviews
Check Price
Available at
16,24 £
see vendordays
see vendordays
Manufacturer
Honeywell
Dimensions
1,4 x 5,5 x 7,2 in
Alarm
Areas of application
    Power supply
    IP protection class
    App
    Advantages
    • Has an alarm
    Shipping (Amazon)
    see vendor
    Check Price
    Amazonsebson GS153
    Rating
    Excellent01/2025

    3

    sebson GS153
    Customer rating
    Amazon1,728 reviews
    Check Price
    Available at
    15,99 £
    see vendordays00£
    see vendordays
    Manufacturer
    sebson
    Dimensions
    0,9 x 2,4 x 2,4 in
    Alarm
    Areas of application
    • - Bath
    • - Kitchen
    • - Cellar
    Power supply
    Battery
    IP protection class
    IP65
    App
    Advantages
    Shipping (Amazon)
    see vendor
    Check Price
    Best Price
    Best Price
    AmazonSmartwares FWA-1821
    Rating
    Excellent01/2025

    4

    Smartwares FWA-1821
    Customer rating
    Amazon219 reviews
    Check Price
    Available at
    6,49 £
    see vendordays00£
    14,19 £
    see vendordays00£
    Manufacturer
    Smartwares
    Dimensions
    9,1 x 24,8 x 24,8 in
    Alarm
    Areas of application
    • - Cellar
    • - Bath
    • - Kitchen
    • - Boat
    Power supply
    Battery
    IP protection class
    IP65
    App
    Advantages
    • Alarm function
    Shipping (Amazon)
    see vendor
    Check Price
    AmazonSchabus 300240
    Rating
    Excellent01/2025

    5

    Schabus 300240
    Customer rating
    Amazon181 reviews
    Check Price
    Available at
    64,66 £
    see vendordays
    see vendordays
    Manufacturer
    Schabus
    Dimensions
    1,7 x 2,4 x 4,6 in
    Alarm
    Areas of application
    • - Cellar
    Power supply
    Power adapter
    IP protection class
    IP20
    App
    Advantages
    Shipping (Amazon)
    see vendor
    Check Price
    AmazonMoen 920-004 Flo
    Rating
    Very Good01/2025

    6

    Moen 920-004 Flo
    Customer rating
    Amazon1,077 reviews
    Check Price
    Available at
    97,11 £
    see vendordays
    see vendordays
    Manufacturer
    Moen
    Dimensions
    1,5 x 2,6 x 3,3 in
    Alarm
    Areas of application
    • - Cellar
    Power supply
    Lithium metal battery
    IP protection class
    App
    Advantages
    • With app
    Shipping (Amazon)
    see vendor
    Check Price
    AmazonHoneywell W1KS
    Rating
    Very Good01/2025

    7

    Honeywell W1KS
    Customer rating
    Amazon498 reviews
    Check Price
    Available at
    54,00 £
    see vendordays
    24,00 £
    see vendordays3.293.29£
    Manufacturer
    Honeywell
    Dimensions
    12,6 x 30,7 x 30,7 in
    Alarm
    Areas of application
    • - Bath
    • - Cellar
    Power supply
    AA battery
    IP protection class
    App
    Advantages
    • App control
    Shipping (Amazon)
    see vendor
    Check Price

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