Watchguard ALH-PIRMW dual technology PIR and microwave detector, front view

ALH-PIRMW detector from an angle showing the slim case

ALH-PIRMW close-up of the LED window and PIR lens

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Watchguard Dual Technology PIR / Microwave Detector - ALH-PIRMW

Name: Watchguard Dual Technology PIR / Microwave Detector - ALH-PIRMW
Brand: Watchguard
SKU: ALH-PIRMW
Price: 64.85 AUD
Availability: InStock

SKU ALH-PIRMW In Stock - Ready to Ship

$64.85 inc GST

Watchguard ALH-PIRMW: a hardwired dual technology PIR and microwave motion detector with selectable pet immunity and AND or OR alarm logic.

✓Quad PIR plus 10.525 GHz microwave
✓15 m range, 85 degree pattern
✓Pet immunity 15 or 25 kg
✓9.6 to 16 V DC, 25 mA active
✓NC alarm relay and NC tamper
✓118 × 62.5 × 41 mm, indoor only

Watchguard ALH-PIRMW white dual technology PIR and microwave detector, front view

Watchguard · Hardwired alarm · Dual technology

Two sensors, one decision.
PIR and microwave, pet immune to 25 kg.

The Watchguard ALH-PIRMW is a hardwired dual technology motion detector. A quad element PIR and a microwave Doppler sensor watch the same area, and in AND mode the alarm relay only trips when both see movement.

In one sentence: the Watchguard ALH-PIRMW is a 12 V hardwired dual technology PIR and microwave motion detector with 15 or 25 kg pet immunity, a 15 m, 85 degree coverage pattern, AND or OR alarm logic and normally closed alarm and tamper outputs.

Detector only. The panel, cable and bracket are separate.

This listing is one ALH-PIRMW. It needs 9.6 to 16 V DC from the alarm panel, a zone for its alarm relay and a 24 hour zone for its tamper. Brackets are not included.

In the box

ALH-PIRMW dual technology detector

You also need

A hardwired alarm panel with a zone and a 24 hour tamper zone
Alarm cable, 0.5 mm (22 AWG) or thicker
4 screws, 3 × 30 mm, for flat or corner mounting
Watchguard's optional BK-04 wall or ceiling bracket, only if you need one (ask us)

A plain PIR only sees heat moving.

A PIR reacts to changes in heat. A microwave sensor reacts to movement. Set to AND mode, the ALH-PIRMW only alarms when both agree, so a single false trigger is less likely to set it off. It still wants a stable spot away from sun and air ducts.

Case

118 × 62.5 × 41 mm, 102 g.

A slim white case for flat or corner mounting. The front cover comes off with one screw for wiring and the DIP switch settings.

Close-up of the Watchguard ALH-PIRMW LED window above the grey PIR lens

Front

Lens and LED window.

The lens covers an 85 degree pattern out to 15 m. Above it, three LEDs show alarm (red), PIR (green) and microwave (yellow) while you walk test, and can be switched off afterwards.

How it goes in

From corner to walk test.

Pick the spot

A corner is best, at the 2.4 m height shown in the coverage drawing, facing across the path an intruder would take. Avoid direct sun, fast temperature changes and air ducts. Indoors only.

Mount the base

Remove the cover screw and the circuit board, break out the holes for flat or corner mounting, and fix the base with 4 screws (3 × 30 mm). Feed the cable through a knockout.

Wire and set

Connect GND and +12 V, the NC relay and COM to the zone, and the tamper to a 24 hour zone. Set the DIP switches for LEDs, PIR and MW sensitivity, pet weight and AND or OR, then power it down briefly so the settings take effect.

Walk test

After the 1 minute warm up, set Pulse 1 with the LEDs on and walk the area, watching the green and yellow LEDs. Adjust the PIR and MW range controls or move the detector until coverage is complete.

At a glance

ALH-PIRMW

Show specs

Type

Hardwired dual technology motion detector, indoor

Detection

Quad element PIR and microwave pulse Doppler

Microwave module

10.525 GHz (marked on the module in the manual)

Coverage

15 m range, 85 degree pattern

Coverage area

50 × 50 ft (about 15 × 15 m) at minimum sensitivity, 60 × 50 ft (about 18 × 15 m) at maximum

Mounting height

2.4 m, as drawn in the coverage pattern

Mounting

Flat or corner, 4 screws 3 × 30 mm; bracket not included

Pet immunity

15 kg or 25 kg, DIP switch

Alarm logic

AND (both sensors) or OR (either sensor), DIP switch

PIR sensitivity

Pulse 1 (high) or Auto (low), plus range control

MW sensitivity

2 pulses (high) or 8 pulses (low), plus range control

Power

9.6 to 16 V DC

Current draw

25 mA active, 20 mA standby

Alarm output

Form A, NC, 28 V DC 0.1 A, 10 ohm series resistors

Alarm period

2 ± 1 seconds

Tamper

NC, 28 V DC 0.1 A, opens when the cover is removed

Warm up

1 minute

LEDs

Red alarm, green PIR, yellow microwave; can be disabled

Temperature compensation

Yes

RF immunity

10 V/m plus 80% AM, 80 MHz to 1 GHz

Static and transient

8 kV contact, 15 kV air; 2.4 kV at 1.2 J

Operating temperature

−10 °C to +50 °C

Size

118 × 62.5 × 41 mm

Weight

102 g

Warranty

2 years

Watchguard ALH-PIRMW coverage pattern: side view at 2.4 m mounting height and top view, 15 m range across 85 degrees

Coverage pattern from the ALH-PIRMW installation manual: 15 m range across 85 degrees, drawn at 2.4 m mounting height.

Pair it with

What it works with

Alarm panel

A hardwired panel zone

Any wired panel with a 9.6 to 16 V DC auxiliary supply, a zone for the NC alarm relay and a 24 hour zone for the tamper.

Doorways and windows

ALE-PIRC curtain PIR

Watchguard's dual element curtain PIR covers a narrow strip such as a row of windows, alongside the ALH-PIRMW covering the room.

Cable

0.5 mm alarm cable or thicker

The manual allows 200 m at 0.5 mm (22 AWG), 300 m at 0.75 mm, 400 m at 1.0 mm and 800 m at 1.5 mm.

Where it is used

Garages

Spaces where a car's engine heat can upset a plain PIR.

Sheds and workshops

Outbuildings with tools and machinery worth protecting.

Homes with dogs

Living areas with pets up to 25 kg, with the pet switch set.

Warehouses

Long aisles within the 15 m pattern.

Offices

Open plan floors and corridors covered from a corner.

Shops

Sales floors and stockrooms after hours.

ALH-PIRMW or WGAP864WPIRV2

	ALH-PIRMW (this detector)	WGAP864WPIRV2
Connection	Hardwired to any panel zone	Wireless, WGAP864 panel through the WGAP864WRX16V2
Power	9.6 to 16 V DC from the panel	9 V battery
Detection	Quad PIR plus microwave	Quad zone PIR
Coverage	15 m, 85 degree pattern	12 × 12 m, 90 degrees
Pet immunity	15 or 25 kg, selectable	Small pets
Mounting	Flat or corner, bracket not included	Wall or ceiling, bracket included
Warranty	2 years	2 years

Both are Watchguard indoor motion detectors. Figures from the ALH-PIRMW installation manual and Watchguard's product information.

Common questions

What does dual technology mean?

It has two sensors: a quad element PIR that senses body heat moving, and a microwave Doppler sensor that senses movement. In AND mode the relay only trips when both detect at the same time.

What is the difference between AND and OR mode?

AND needs both sensors to detect; OR alarms on whichever detects first. DIP switch 5 sets it, and you must remove power briefly for the change to take effect.

How big an area does it cover?

15 m range across an 85 degree pattern. The manual quotes 50 × 50 ft at minimum sensitivity and 60 × 50 ft at maximum.

How high should it be mounted?

2.4 m, the height shown in the manual's coverage drawing. Watchguard recommends a corner position.

Is it pet immune?

Yes. DIP switch 4 sets immunity to animals up to 15 kg or up to 25 kg.

What power does it need?

9.6 to 16 V DC from the panel. It draws 25 mA active and 20 mA on standby.

What outputs does it have?

A normally closed alarm relay (Form A, 28 V DC 0.1 A) with COM, held for 2 seconds in alarm, and a normally closed tamper switch that opens when the cover is removed.

Can it be used outdoors?

No. The manual says indoor only, away from direct sunlight, fast temperature changes and air ducts.

Does it come with a bracket?

No. It mounts flat or in a corner with 4 screws. Watchguard's optional BK-04 wall or ceiling bracket is sold separately; ask us about it.

What cable should I use?

0.5 mm (22 AWG) or thicker. The manual allows 200 m at 0.5 mm, 300 m at 0.75 mm, 400 m at 1.0 mm and 800 m at 1.5 mm.

What microwave frequency does it use?

10.525 GHz, as marked on the microwave module in the manual's circuit board drawing.

How often should it be tested?

Weekly. The manual asks for a full walk test at installation and for the user to be shown how to walk test it every week.

Supported by InFront Technologies.

Help placing detectors, setting the DIP switches or wiring the zone: call 1300 736 970 or email [email protected]. The installation manual is on the Attachments tab.