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Unlocking the Smart Alarm takes 300 scrap on the Engineering Workbench tech tree, path included, and it has 50 health once placed.
What one batch takes.
High Quality Metal
Tech Trash
Copy it, then hold Shift and click Paste (JSON) in the conveyor, in game.
[
{
"TargetCategory": null,
"MaxAmountInOutput": 3,
"BufferAmount": 0,
"MinAmountInInput": 0,
"IsBlueprint": false,
"TargetItemName": "metal.refined"
},
{
"TargetCategory": null,
"MaxAmountInOutput": 1,
"BufferAmount": 0,
"MinAmountInInput": 0,
"IsBlueprint": false,
"TargetItemName": "techparts"
}
]
Workbench Level 2, 25s, yields 1
Faster at a higher workbench: 12.5s at Workbench Level 3.
Researching the blueprint costs 30 scrap at a Research Table.
Crates, barrels and NPCs that drop the Smart Alarm, most likely first
| From | Chance | Amount |
|---|---|---|
 Locked Crate | 1.3% | 1 to 2 |
 Elite Crate | 0.78% | 1 to 3 |
| Scientist PT Boat Dry Box | 0.73% | 1 to 3 |
 Military Crate | 0.42% | 1 |
 Underwater Lab Military Crate | 0.42% | 1 |
 Wagon Military Crate | 0.42% | 1 |
Missile Silo Scientist (underground) | 0.3% | 1 |
Scientist | 0.074% | 1 |
Heavy Scientist | 0.061% | 1 |
 Treasure Box, mission reward | 1.6% | 1 to 2 |
 Gingerbread Mine Present, Christmas event only | 0.42% | 1 |
Chance is for one container opened or one NPC killed. Amount is how many it holds when it holds any.
Each swing charges the share of the cost for 50 health, rounded up to whole resources, and restores as much health as it paid for, which can be more than 50. Nothing can be repaired for 30 seconds after it takes damage.
What the Smart Alarm gives back in each recycler
| Recycler | Efficiency | You get |
|---|---|---|
| Red recycler | 75% | 2 + 25% High Quality Metal, 75% Tech Trash |
| Green recycler (powered) | 60% | 1 + 80% High Quality Metal, 60% Tech Trash |
| Green recycler | 50% | 1 + 50% High Quality Metal, 50% Tech Trash |
| Yellow recycler | 40% | 1 + 20% High Quality Metal, 40% Tech Trash |
The Smart Alarm breaks down into High Quality Metal and Tech Trash.
A recycler takes them one at a time, so a full stack of 5 goes through in 5 cycles.
Figures are for one item in perfect condition. Each recycler’s name opens its full table at this item. “2 + 25%” means 2 every time and a 25% chance of one more, and a percentage alone is the chance of getting one.
In Rust, Smart Alarm is a electrical in the Electrical category (item ID #-695978112, console shortname smart.alarm). In active play, it follows standard server rules for electrical gear across procedural maps. Inventory storage stacks up to 5 units per slot, and uncollected ground drops despawn after 20 minutes.
Sends notifications to your phone when powered on.
Crafting Smart Alarm in Rust takes 25 seconds at a Workbench Level 2 once the 30 scrap blueprint node is unlocked, with all ballistics, crafting, and durability values read from the Rust game files. Shredding a spare copy at a green recycler recovers base materials at fifty percent yield (vs forty percent at safe-zone yellow units). Placed structures heal with a Hammer using raw materials from your inventory.
The Smart Alarm has 50 health, as do the RF Broadcaster and the RF Receiver.
When choosing between Smart Alarm and related electrical in Rust, prioritize researching a looted or traded copy at a Research Table (30 scrap) whenever you want to skip the 300-scrap tech tree path and save 270 scrap, or unlock the tech tree branch when your group also needs the prerequisite blueprints.
| Item | Category | Stack Limit | Craft / Source | Tech Tree / Research | Green Recycler Yield |
|---|---|---|---|---|---|
| Smart Alarm | Electrical | 5 per slot | Workbench Level 2 | 30 node / 300 path | Not recyclable |
| Smart Switch | Electrical | 5 per slot | Workbench Level 2 | 15 node / 285 path | Not recyclable |
| Audio Alarm | Electrical | 5 per slot | Workbench Level 1 | 15 node / 165 path | Not recyclable |
| Seismic Sensor | Electrical | 10 per slot | Workbench Level 2 | 30 node / 225 path | Not recyclable |
Compare Smart Alarm with closely related electrical sheets in the Rust item catalog:
To compare Smart Alarm against every item in its inventory category, browse All 83 items in Electrical, or plan prerequisite scrap paths on the The Engineering Workbench tech tree, tile by tile.
The Smart Alarm has 50 health once placed in Rust. It belongs to the Electrical category under numeric ID -695978112 across 83 electrical, while F1 console command inventory.giveid -695978112 5 spawns 5 units for testing across 83 published Electrical entries (79 with crafting blueprints).
The Smart Alarm is crafted at a Workbench Level 2 from 3 High Quality Metal and 1 Tech Trash, once the blueprint is learned in Rust. Non-craftable components like Tech Trash must be looted from monument crates or recycled gear before queuing the craft at your bench.
The Smart Alarm drops from 9 container and NPC loot tables in Rust, led by Locked Crate (1.3% chance), Elite Crate (0.78% chance), and Scientist PT Boat Dry Box (0.73% chance). Each listed probability reflects a single container opened or NPC killed, and found copies can be repaired or researched at base.
The Smart Alarm recycles in Rust at an unpowered green recycler into 1 High Quality Metal plus a 50% chance of one more and a 50% chance of a Tech Trash. Undamaged copies return the full listed yield, whereas worn items scale their recycler output down in proportion to remaining durability.
The Smart Alarm takes 25 seconds to craft, down to 12.5 seconds at Workbench Level 3 in Rust. It sits in the Electrical catalog with item ID -695978112 alongside 82 related electrical, with F1 console command inventory.giveid -695978112 5 across 83 published Electrical entries.
The Smart Alarm repairs in Rust once placed with a Hammer for up to 3 High Quality Metal at full wear (1 swings). Hammer repairs draw materials straight from your inventory with zero maximum-health penalty, provided the placed object has not taken damage within the last 30 seconds.
Blueprint progression for Smart Alarm at Engineering Workbench in Rust charges 30 scrap on the target node and 300 cumulative scrap along the prerequisite branch, while direct blueprint study at a Research Table charges 30 scrap. It belongs to the Electrical category under numeric ID -695978112 across 83 electrical.
Dropped on the ground in Rust, the Smart Alarm despawns after 20 minutes by default. Picking it back up into a player inventory or storing it inside a base container immediately resets that ground despawn timer, which the server scales by item rarity tier.
The Smart Alarm has 32-bit signed item ID -695978112 and shortname smart.alarm in Rust. Server plugins, custom loot tables, Vending Machine listings, and automated Industrial Conveyor filter strings reference these two identifiers under the Electrical category (stack limit 5 units per slot).
Server administrators in Rust spawn the Smart Alarm in the F1 developer console with inventory.give smart.alarm 5 or inventory.giveid -695978112 5 for 5 units. Both console spawn commands require administrator or moderator privileges on the server, while regular players can bind a quick-craft shortcut key instead.