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For other redstone-related objects found in Minecraft, see Redstone (disambiguation).

Redstone Comparators are a special redstone block that are similar to redstone repeaters. Redstone comparators have a third torch on them, allowing for complex redstone features. Redstone comparators have three ports, with two being for input, the third for output. Redstone comparators also measure how many things an entity holds or weighs, allowing for some very interesting adventure maps or mechanisms. They can also detect how many items are stored in a container block (such as a chest, hopper, dropper or dispenser). It can be utilized in a Redstone Circuit. It makes the same sound as wood when broken.

A tutorial on YouTube is available that shows how to build with redstone comparators.

A comparator has two "modes", "compare" mode and "subtract" mode, which players can tell by the status of the single torch on the front. The default mode is "compare" mode which means that it will compare the signal it receives from the side to the signal it receives from behind. If the signal from the side is stronger than the one from behind, it won't give off a signal. If the signal from the side is weaker than the one from behind, the comparator will give off a signal equal to the one it receives from behind.

On "subtract" mode, the comparator will produce a signal equal to the signal it receives from behind minus the signal it receives from the side.

Crafting

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Redstone Comparator
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Redstone Torch
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Nether Quartz
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Stone
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