Detector

Notes:

 * These mobs check as very low level, and have low health (about 500HP). But they have high evasion and defense, can hit hard, and will still aggro players at 75.
 * If engaged in combat, they will periodically summon Caretaker mobs to assist them up to 4 times, even if they are slept. If they are zoned you don't need to kill them and wait repop and they can resummon mob 4 times again.
 * Has been known to spawn them a 5th time.
 * The Spheroids that are underground can randomly spawn the Steam Cleaner NM instead of a Caretaker.