Fluid Sensor
Java mod listed for Minecraft 1.20. Downloads from the MC Java Mods app on Android.
⬇ Download on CurseForgeThe author built this one for Minecraft 1.20.1 on Forge. On other versions it may install and then do nothing.
Adds two new blocks:
The Fluid Sensor:
A new redstone block which can detect water in the direction it is facing, with signal strength dependent on the type - from water source blocks, through hydrated farmland, to rain!
Useful for hidden switches, fluid-based redstone systems, and more!
Outputs particles dependent on signal strength.
Requires a comparator to output a redstone signal.
Different types of water output different signal strengths:
- Water sources: 15
- Bubble columns: 13
- Flowing water: 13-6, depending on water level
- Non-water still fluids: 5
(only Lava, in vanilla)
- Waterlogged blocks: 5
- Non-water flowing fluids: 4
- Hydrated farmland / live coral / wet sponge: 3
- Thunderstorm rain: 2*
- Regular rain: 1*
*: only when facing up.
Etched Prismarine:
Simplified version of the Fluid Sensor, which can only detect certain fluid states but outputs redstone directly.
Animated texture which changes depending on signal strength detected.
Crafted from dark prismarine, with a redstone block core.
- Water Sources: 15
- Flowing water: 10
- Waterlogged blocks: 5
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.20.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on CurseForge — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as fluid_sensor-1.1.2.jar — drop this file into the mods folder
- Download size: 135 KB
- Download link checked 18 Oct 2026 — working
These come from our own check of the pack file, not from the source page.