Fire Alarm Speaker

Quickstart

1. Open your crafting table and craft a Fire Alarm Speaker using the recipe below.
2. Place it anywhere you want fire detection — near a forge, in a building, or along a perimeter.
3. Light a fire (place fire, soul fire, or a lit campfire) within 15 blocks of the speaker.
4. The speaker will switch to its active alarm state within about one second, play a repeating bell-and-pling sound with note particles, and emit a full redstone signal (power 15) from all sides.
5. Extinguish all nearby fire to silence the alarm and cut the redstone output.

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Overview

The Fire Alarm Speaker is a single craftable block that acts as an automatic fire detector and redstone signal source. Place it in your base or builds and it will continuously watch for fire in the surrounding area. The moment it detects flames it raises an alarm — complete with sound and visual effects — and outputs a full redstone signal you can use to trigger other contraptions.

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What It Adds

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How To Use

Placing the Speaker

Place the Fire Alarm Speaker like any solid block. It requires no special orientation. Mine it with a pickaxe to retrieve it.

Fire Detection

Every second (20 game ticks) the speaker scans a 15-block spherical radius around itself for:

• Regular fire
• Soul fire
• Lit campfires (regular or soul)

Unlit campfires are ignored — only campfires that are currently burning will trigger the alarm.

Alarm State

When fire is detected, the speaker:

• Switches to its active visual state (changes appearance to show it is alarming).
• Plays a high-pitched bell and pling sound combo every second.
• Bursts note particles around the block.
• Emits redstone power level 15 from all sides.

The alarm continues as long as any fire remains within range. Once all fire within the 15-block radius is gone, the speaker returns to its idle state, stops sounding, and the redstone output drops to 0.

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Abilities And Mechanics

The redstone signal is emitted from all sides of the block, so adjacent comparators, repeaters, pistons, doors, lamps, or any other redstone device will receive power immediately when the alarm activates.

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Progression And Strategy

• Early fire safety: Place a speaker near your furnace room, smeltery, or nether portal to catch accidental fires before they spread.
• Automated responses: Wire the speaker's redstone output to dispensers filled with water buckets, iron doors that seal a room, or redstone lamps that flash as a visual alert.
• Perimeter detection: Use multiple speakers spaced up to 30 blocks apart to create a continuous detection grid around a large base.
• Campfire monitoring: Because lit campfires trigger the alarm, be sure to extinguish decorative campfires near the speaker, or place the speaker far enough away that intended campfires fall outside its 15-block radius.