Sound sensors are an often-overlooked but powerful tool in Phasmophobia. This guide will show you how to use Tier 1 sound sensors effectively—even under challenging conditions like professional difficulty—to locate the ghost room with precision.

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🔊 What Are Sound Sensors?

Sound sensors detect noise within their range and report it back to the truck. They come in three tiers:

• Tier 1: 5–10 meter range
• Tier 2: 5–15 meter range
• Tier 3: 5–15 meters with directional audio

This guide focuses on Tier 1 sensors, which have no directional indicators but can still provide excellent intel when placed correctly.

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🧰 Step 1: Equipment and Setup

Before entering the location, bring:

• 4 Sound Sensors – For full area coverage
• Lighter – Useful for navigating in the dark
• Sanity Pills – Take them before setup to prevent early hunts
• Optional Tools: Thermometer, Spirit Box, and video cameras for evidence after identifying the room

Setup Challenge Conditions:

• No in-game sound
• Breaker left off during initial setup

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📍 Step 2: Strategic Sensor Placement

On maps like Grafton Farmhouse, strategic placement is key. Here’s an effective setup:

Downstairs

1. Sensor 1: Near the workshop – covers kitchen, dining room, and part of the living room
2. Sensor 2: Near the living room – covers both bedrooms, washroom, and entrance

Upstairs

3. Sensor 3: By the nursery – monitors nursery, bathroom, and hallway
4. Sensor 4: Near the bedroom – covers the hallway, bathroom, and attic entrance

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📊 Step 3: Analyzing Sound Data

Return to the truck and monitor the sensor readings:

1. Start Wide: Set each sensor’s range to its maximum.
2. Narrow Down: Gradually reduce the range on any sensor picking up frequent sound. This helps isolate the exact room.

Example:

• If the nursery sensor constantly detects sound, and no other sensor does, it’s likely the ghost room.
• If two separate areas register sound (e.g., nursery and living room), you may be dealing with The Twins, who can interact in multiple locations.

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🔍 Step 4: Verifying the Ghost Room

Once you’ve narrowed it down, confirm the location using evidence tools:

• Thermometer: Check for freezing or low temperatures
• Video Camera: Look for ghost orbs
• Spirit Box / D.O.T.S. Projector: Test for other evidence types

Example Confirmation (Grafton):

• The nursery sensor detected consistent sound
• Thermometer showed low temps
• Ghost orbs confirmed it as the ghost room

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👻 Step 5: Identifying the Ghost

Use your confirmed room to gather evidence and identify the ghost.

Example:

• Evidence Found:
  • Ghost Orbs
  • D.O.T.S. Projector
  • Spirit Box
• Ghost Type: Yo-kai

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✅ Pros & Cons of Sound Sensors

✅ Pros:

• Great for locating ghost activity without needing direct interaction
• Ideal for large maps with multiple floors
• Useful when sound is disabled or during early-game scouting

❌ Cons:

• Tier 1 sensors have limited range and no directionality
• May require repositioning
• Less useful on small maps or with low-activity ghosts

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💡 Pro Tips for Sound Sensor Use

• Spread Out Coverage: Position sensors to monitor high-traffic or large zones
• Watch Patterns: Persistent noise in one sensor is a strong clue
• Combine Tools: Use sound data alongside thermometers and cameras
• Suspect Twins? Two consistently active zones could indicate a multi-location ghost

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🎯 Final Thoughts

Sound sensors might not be flashy, but when used strategically, they’re one of the most efficient ways to find the ghost room—especially on higher difficulties. Combine smart placement with proper evidence gathering, and you’ll have a solid path to identifying the ghost without wandering in the dark.