We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

3G Electric
Dwyer Water leak detector WD3-BP-D1-A - Measurement
DwyerMeasurement

Dwyer Water leak detector WD3-BP-D1-A

Dwyer water leak detector with SPST/SPDT relay and 85 dB audible alarm for facility monitoring. Detects water at 1/32 inch gap, operates 0 to +50°C, runs on 24 VDC or batteries. Ideal for HVAC, data centers, and…

SKU 3G-CBM-02337

Brand
Dwyer
Item
Water leak detector WD3-BP-D1-A
Part Number
WD3BPD1A
Category
Measurement
UNSPSC
41112412 — Pressure gauge
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

Dwyer
Manufacturer Part Number
WD3BPD1A
relay type
SPST or SPDT
power supply
24V or batteries
audible alarm
85 dB @ 30 cm
detection gap
1/32 inch
operating temperature
0 to +50°C
electrical current battery
250 mA @ 24 VDC
electrical current external
1A @ 24 VAC/DC

Technical Documents

(1)
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

Dwyer Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

Dwyer water leak detector with SPST/SPDT relay and 85 dB audible alarm for facility monitoring. Detects water at 1/32 inch gap, operates 0 to +50°C, runs on 24 VDC or batteries. Ideal for HVAC, data centers, and building protection applications.

Frequently Asked Questions

Where can I buy the Dwyer WD3-BP-D1-A water leak detector worldwide?

Order from 3G Electric, an authorized Dwyer distributor. We handle worldwide delivery and manage customs clearance. Lead time on request — contact our team for availability and quotation on the WD3-BP-D1-A.

What is the detection sensitivity and alarm output of this leak detector?

The Dwyer WD3-BP-D1-A detects water at a 1/32 inch gap and produces an 85 dB audible alarm at 30 cm. It offers SPST or SPDT relay contact output, switchable for integration with building automation systems.

What power options are available for the WD3-BP-D1-A?

The detector runs on 24 VDC (250 mA draw) or internal batteries. Operating temperature range is 0 to +50°C, making it suitable for HVAC systems, data centers, and general building protection applications.

Used in

Common applications for Dwyer
Combustion air-filter monitoring — Magnehelic Series 2000 on burner air-intake filter banks
Clean-room and pharmaceutical pressurisation — Magnehelic / Capsuhelic differential-pressure gauges
HVAC fan-discharge static pressure — Mark II inclined-vertical manometers on AHU test points
Filter-blockage alarms — Photohelic Series 3000 combined gauge/switch on air-handling units
BMS-integrated pressure monitoring — Digihelic DH3 with 4–20 mA output for building management
Not sure this is the right part? Photo-identify it

Dwyer Products

3G Electric supplies Dwyer measurement. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
Water leak detector WD3-LP-D2-A
Dwyer
Water leak detector WD3-LP-D2-A
Water leak detector WD3-LP-D2
Dwyer
Water leak detector WD3-LP-D2
Dwyer
Dwyer
Waterproof temperature sensor O-4E
Pressure switch DXW-11-153-1
Dwyer
Pressure switch DXW-11-153-1
Dwyer
Dwyer
Pressure switch DXW-11-153-2
Dwyer
Dwyer
Pressure switch DXW-11-153-3

More from Dwyer

View all Dwyer parts
Dwyer
Dwyer
Average flow probe PAFS-1005
Dwyer
Dwyer
Average flow probe PAFS-1003
Dwyer
Dwyer
Average flow probe PAFS-1008
Dwyer
Dwyer
Average flow probe PAFS-1010
Dwyer
Dwyer
Probe AVG PT100 OHM RTD L.65 AVG-21241
Magnehelic manometer 2000-20KPA
Dwyer
Magnehelic manometer 2000-20KPA
Red external static pressure sensor A-306
Dwyer
Red external static pressure sensor A-306
Dwyer
Dwyer
AVU air velocity probe 8M/S 0/10V AVU-2-V

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first