The TAKEX PA‑450PIA is a compact, high-reliability passive infrared motion sensor engineered for indoor security applications where pet tolerance and precise detection are critical. Designed to detect human motion up to 12 metres, while ignoring animals up to 18kg, the PA‑450PIA is ideal for residential, commercial, and light industrial spaces.
Equipped with flash and solid red LED indicators, selectable pulse count, and multi-voltage support from 9V to 24V DC, this hardwired PIR sensor delivers dependable performance and flexible installation. The sensor includes dry contact alarm output
(N.O./N.C. selectable), and can be easily mounted on walls at heights of up to 2.5 metres.
What’s Included in the Box
Main Features
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Pet-Friendly Detection: Ignores pets weighing up to 18kg, reducing false alarms.
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12m Detection Range: Wide-angle motion coverage for large indoor rooms and hallways.
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Flashing/Solid LED Indicators: Red LED blinks during warm-up, lights solid on alarm, with memory indication.
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Selectable Pulse Count: Choose between 1, 2, 3, or 4 detection pulses for adjustable sensitivity.
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Adjustable Sensitivity: Four levels (60%, 80%, 100%, 120%) to suit varying environmental conditions.
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Dry Contact Alarm Output: N.C. / N.O. selectable SPDT relay for easy integration into any alarm panel.
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Wall Mount Design: Suitable for indoor mounting at heights of up to 2.5m.
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Compact Size: Discreet housing in white plastic for a low-profile installation.
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Memory Feature: LED memory indication shows triggered status for up to 47 minutes.
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Multi-Voltage Power: Operates on 9VDC, 12VDC, or 24VDC.
Detailed Specifications
| Specification |
Details |
| Model |
PA‑450PIA |
| Detection Type |
Passive Infrared – Wide Angle |
| Detection Range |
12 m (36 ft) max |
| Pet Immunity |
Up to 18 kg |
| Pulse Count |
Selectable: 1 / 2 / 3 / 4 |
| Sensitivity |
Adjustable: 60%, 80%, 100%, 120% |
| LED Indicators |
Red – Blinking (warm-up), Solid (alarm), Memory status |
| Alarm Output |
SPDT Dry Contact, N.O. / N.C. selectable |
| Contact Rating |
24V AC/DC, 0.25A (protective resistor 3.3Ω) |
| Tamper Output |
N.C., 30VDC, 0.1A |
| Power Supply |
9V to 28V DC (non-polarity) |
| Current Consumption |
Max. 8 mA |
| Mounting Type |
Wall mount (up to 2.5 m height) |
| Material |
White plastic (body and lens) |
| Weight |
Approx. 90 g (3.2 oz) |
| Operating Temperature |
–15 °C to +55 °C (5 °F to 131 °F) without condensation |
| Device Type |
PIR Motion Detector |
| Installation Location |
Indoor use only |
Warranty Information
12-Month Limited Warranty – Covers material or workmanship defects. Excludes damage from misuse, incorrect wiring, power surges, or environmental exposure.
Brand Description
TAKEX, a global brand under Japan’s Takenaka Engineering Co., Ltd., is renowned for its high-quality intrusion detection systems. The PA‑450PIA is part of their advanced PIR product line offering reliable, pet-tolerant protection with precision optics and performance-driven engineering.
SKU Field
Product SKU: Not provided
Model Reference: PA‑450PIA
Categories
ALARM / INTRUSION → PIR Sensors
Practical Use Scenarios
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Residential Security: Protect your home while ignoring pets up to 18kg.
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Retail or Office Interiors: Wide-angle detection in high-traffic indoor zones.
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Apartment Buildings: Ideal for wall-mounted hallway and entry surveillance.
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Home Automation: Integrate with lighting or alerts triggered by human movement.
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Pet-Owner Installations: Maintain accurate detection without pet-related false alarms.
Datasheets / Downloads
Excellence for the Australian and New Zealand Market
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Fully compatible with 12VDC and 24VDC alarm systems in ANZ.
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Sourced and supported by authorized TAKEX representatives in Australia and New Zealand.
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Compliant with local electrical and installation standards.
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Backed by local warranty servicing and technical assistance.
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Designed for reliable use in Australian homes, offices, and retail environments.
Frequently Asked Questions (FAQs)
Q1: What size pet can the PA‑450PIA ignore?
A1: The PA‑450PIA is designed to ignore pets up to 18 kg, reducing false alarms in pet-friendly spaces.
Q2: How far does the sensor detect motion?
A2: The sensor detects human motion up to 12 m (36 ft) with wide-angle coverage.
Q3: Can I adjust the sensitivity of the sensor?
A3: Yes. You can choose from four sensitivity levels: 60%, 80%, 100%, and 120%, to suit your environment.
Q4: What voltages is the PA‑450PIA compatible with?
A4: It operates on 9VDC, 12VDC, or 24VDC, offering flexibility for various alarm systems.
Q5: What LED indications does the unit provide?
A5: A red LED blinks during warm-up, lights solid on alarm, and provides memory indication after a trigger.
Q6: Is this model suitable for ceiling mounting?
A6: No, the PA‑450PIA is designed specifically for wall mounting up to 2.5 metres.
