STI-WS103 — PIR Motion Sensor Installation Instructions

Installation and operating instructions for the STI-WS103 PIR Motion Sensor, designed for use with the STI Wire-Free Home Protection System Smart Panel.

Overview

The STI-WS103 PIR Motion Sensor triggers the STI Wire-Free Home Protection System Smart Panel when it senses movement in a monitored area. Note: if pets are in the home, keep them off surfaces above 3 feet (1m) in height, as they may trigger the sensor.

Kit Contents

• 1 Motion Sensor
• 1 Ball-head joint mounting bracket
• 3 Screws and wall plugs
• 1 Installation and operating instructions leaflet

Placement Guidelines

• Mount on a solid surface between 6 ft and 8 ft (1.8m–2.4m) from the floor
• Near key entry/exit points
• Away from extreme temperature sources (radiators, ovens, stoves) and large metal objects that could interfere with wireless performance
• Away from direct sunlight
• Indoors only, not behind partitions or curtains
• Mount as high as possible to avoid tampering; corner placement gives wider room coverage

Installation Steps

1. Power up: Remove the battery cover, insert a 9V battery, and replace the cover. If the RED LED flashes (not counting entry/exit delay flashing), the battery needs replacing.
2. Mount: Hold the mounting template against the wall, mark drill points, drill holes, insert wall plugs, and attach the bracket with the provided screws. Attach the sensor to the bracket.
3. Set sensitivity: Move the connector to "High," "Middle," or "Low." Start with "Low" and perform a walk test; raise sensitivity only if needed.
4. Walk test: Enter ALERT mode first so the alarm doesn't trigger. Walk through the monitored area — the red light inside the unit lights up on detection. Adjust the mounting angle (down = shorter range, up = longer range) and repeat every 3 minutes (power-saving lockout) until the coverage is correct.

Important: The sensor is designed with a power-saving program and remains inactive for 3 minutes after each detection — factor this into system setup and testing.

House Security Code & Zone Settings

Unless the Smart Panel's factory settings have been changed, the House Security Code does not need adjustment. If it has been altered (e.g., to resolve interference or intermittent activation), all system modules — sensors, sirens, and the Smart Panel — must be set to match:

• 4 jumpers/dip-switches per device; plugged = ON, removed = OFF.
• Default house code (Smart Panel & sensors): 1: ON, 2: ON, 3: ON, 4: ON
• Default house code (Key Fob Remote dip-switches): 1: ON, 2: ON, 3: ON, 4: ON

Zone Code: Remove the battery compartment cover on the rear of the sensor. The "Zone Code" area has eight pairs of metal contacts numbered 1–8; the jumper across a pair sets the current zone. Move the jumper to reassign. Default zone code for this sensor: Zone 8.

Maintenance & Batteries

• Clean with a soft damp cloth only — no abrasive, solvent-based, or aerosol cleaners.
• Do not allow water to enter the unit.
• Insert batteries with correct polarity; don't mix new/old or different battery types; do not use rechargeable batteries.
• Dispose of batteries via a recycling center — do not burn or place in household waste.

Alarm System Limitations

No alarm system guarantees 100% protection. Problems can occur if sensors are out of hearing range, placed behind obstacles, if entry points are left unprotected, if the system is deliberately bypassed/jammed, if power to sensors is inadequate, or if sensors are exposed to improper environmental conditions. Test the system weekly — inadequate maintenance is the most common cause of alarm failure. An alarm system is not a substitute for insurance.

Warranty

One year limited warranty.