Ava's alerter

Ava's alerter is an upgraded version of Ava's accumulator that can be obtained after the Do No Evil quest. It offers ranged attack and defence bonuses which are one point higher than those of the accumulator. In the quest, player takes a Metal box to Ava in order to get a device that can detect buried metal items. She then takes your accumulator and adapts it to search for exact same metal boxes.

Just like accumulator and attractor, Ava's alerter doesn't work while wearing a metal body.

Attracted items
The alerter works with:
 * Bow arrows (Holds up to rune both normal and brutal, but some dragon arrows will still be left on the ground.)
 * Crossbow bolts (Includes bone bolts, kebbit bolts, and broad-tipped bolts. When fired some are still left on the ground. It will not work with black bolts.)
 * Darts
 * Javelins
 * Throwing axes
 * Throwing knives
 * Toktz-xil-ul (Obsidian rings)

Other items that the alerter can occasionally attract and deposit in the inventory include:
 * Steel arrows (common)
 * Steel bolts