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Dwyer WD3-LP-D2-A : Line-Powered Water Leak Detector, DPDT Relay, 24 VAC / 11-27 VDC, 85 dB Audible Alarm, 4.9 ft Cable, Adjustable Mounting Bracket Included

Dwyer WD3-LP-D2-A : Line-Powered Water Leak Detector, DPDT Relay, 24 VAC / 11-27 VDC, 85 dB Audible Alarm, 4.9 ft Cable, Adjustable Mounting Bracket Included

Dwyer

MSRP: $71.10
Your Price:  $56.62
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SKU:
WD3-LP-D2-A
UPC:
Dwyer WD3-LP-D2-A : Line-Powered
Condition:
New
Availability:
7,648 In Stock | Lead Time: 26 weeks
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Dwyer WD3-LP-D2-A : Line-Powered Water Leak Detector, DPDT Relay, 24 VAC / 11-27 VDC, 85 dB Audible Alarm, 4.9 ft Cable, Adjustable Mounting Bracket Included

Power24 VAC ±10% / 11–27 VDC
OutputDPDT Relay
Audible Alarm85 dB @ 1 ft
Visual AlarmRed + Green LED
Min. Sensing Gap1/32″ adjustable
Cable Length4.9 ft (1.5 m)
EnclosureWater-Tight to 3/4 Body Height
ApprovalCE
ZOT Supply is an authorized Dwyer distributor — every Series WD3 detector ships factory-new with full manufacturer warranty support.

The Dwyer WD3-LP-D2-A Series WD3 Water Leak Detector protects critical equipment from costly water damage by sensing standing water before it spreads. It is externally powered from 24 VAC or 11–27 VDC and uses a dependable DPDT relay output for remote indication or control. An 85 dB audible annunciator adds local warning.

Best for: drip pans under air handlers and HVAC equipment, raised-floor data centers, server and telecom rooms, sump-pump pits, and floor-level monitoring near drains and piping.
Key Features

Reliable Spot Detection

Two gold-tone conductive strips on the base trigger the alarm the moment water bridges the gap — sensing height adjustable down to 1/32″ for early warning.

DPDT Relay for Remote Control

Dry-contact DPDT relay rated 1 A @ 24 VAC/DC integrates with BMS, alarm panels, or shut-off valves for remote indication and automatic response.

Built for Harsh Spots

ABS / polycarbonate UL 94 V-0 housing, water-tight up to 3/4 of the body height, with an adjustable bracket that adhesive- or screw-mounts to any flat surface.

Specifications
ModelWD3-LP-D2-A
ServiceWater or conductive fluids
Switch / OutputDPDT Relay
Electrical Rating1 A @ 24 VAC/DC
Power Requirements24 VAC ±10%, 11–27 VDC
Power Consumption30 mA steady / 85 mA alarm
Audible Alarm85 dB @ 1 ft
Visual Alarm (LED)Green (Power) + Red (Water)
Minimum Sensing Gap1/32″ (adjustable 1/32″ to 17/32″)
Temperature Limits32 to 122°F (0 to 50°C)
Cable4.9 ft (1.5 m), 22 AWG, PVC, UL plenum rated
Enclosure MaterialABS and polycarbonate, UL 94 V-0
Enclosure RatingWater-Tight to 3/4 Body Height
MountingAdjustable bracket — adhesive strips or #6/#8 screws
Weight4.85 oz (137.5 g)
Agency ApprovalCE
Warranty5-Year Limited
Frequently Asked Questions
How does the Dwyer WD3-LP-D2-A detect water?
Water is detected the instant it rises high enough to bridge the two conductive strips on the underside of the housing. The minimum sensing gap is adjustable down to 1/32″ using the included bracket.
What does the DPDT relay connect to?
The dry-contact DPDT relay (1 A @ 24 VAC/DC) wires into a building automation system, alarm panel, or a water shut-off valve for remote indication and automatic response. On detection the contact closes; it returns to normal once the water evaporates.
What powers this model?
It is line-powered from 24 VAC ±10% or 11–27 VDC and draws 30 mA steady / 85 mA in alarm. A green LED confirms power and a red LED indicates water.
How loud is the audible alarm?
The built-in annunciator sounds at least 85 dB at 1 ft and chirps until the water bridge between the strips evaporates.
What is the enclosure rating?
Audible WD3 models are water-tight up to 3/4 of the body height. The non-audible WD3-LP-D2 models are NEMA 6P (IP68) fully submersible.
How does it mount?
The included adjustable bracket attaches to any flat surface with the factory adhesive strips or two #6 or #8 screws. Sensing height sets anywhere from 1/32″ to 17/32″. A spare bracket is the A-WD3-BRK.
Compatible & Related Products
Warranty

Backed by Dwyer's 5-Year Limited Warranty. Refer to the Terms & Conditions of Sale for full details. ZOT Supply, an authorized Dwyer distributor, will issue a Return Goods Authorization before any product is returned for repair.

Documents
PDFSeries WD3 Water Leak Detector Data Sheet
PDFSeries WD3 Installation & Operating Instructions
or a water shut-off valve for remote indication and automatic response. On detection the contact closes; it returns to normal once the water evaporates.""}}
Cable Length:
4.9 ft
Power Consumption:
30 mA, Alarm Condition: 85 mA
Enclosure Ratings:
Watertight up to 34 of the Body Height
Switch Type:
DPDT
Supply Power Type:
AC/DC
Switch Rating:
1 A @ 24 Vac/Vdc
Probe Sensor:
Attached Sensor
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