| Device | DC | Example | Study Time |
| Mechanical, Simple | 10 | Very simple lock | 1d6 rounds |
| Mechanical, Moderate | 15 | Average lock | 2d6 rounds |
| Mechanical, Complex | 20 | Good lock | 1d6 minutes |
| Mechanical, Supreme | 30 | Amazing lock | 2d6 minutes |
| Magical and Mechanical | 20 + required caster level | Aparatus of Kwalish, Folding boat | 4d6 minutes |
| Simple Magical | 25 + required caster level | Wand of Magic Missiles, Ring of Protection, Low-level scroll (spell level 0 to 3) |
10d6 minutes |
| Complex Magical | 30 + required caster level | Rod of Lordly Might, Cubic Gate, Mid- to High-level scroll (spell level 4th+) |
1d6 hours |
| Skill | Ranks | Ability | |
| Appraise | 4 | Int | |
| Craft: Alchemy | 4 | Int | |
| Decipher Script | 4 | Int | |
| Disable Device | 4 | Int | |
| Heal | 4 | Wis | |
| Knowledge: Arcana | 4 | Int | |
| Knowledge: Architecture & Engineering | 4 | Int | |
| Knowledge: Geography | 4 | Int | |
| Knowledge: History | 4 | Int | |
| Knowledge: Nature | 4 | Int | |
| Knowledge: Religion | 4 | Int | |
| Open Lock | 4 | Dex | |
| Search | 4 | Int | |
| Use Rope | 4 | Dex |
| Level | Base Attack Bonus |
Fort Save |
Ref Save |
Will Save |
Special |
| 1 | +0 | +0 | +2 | +2 | Alchemical Insight, Analytical Knowledge, Trapfinding, Bonus Feat |
| 2 | +1 | +0 | +3 | +3 | |
| 3 | +2 | +1 | +3 | +3 | Bonus Feat | 4 | +3 | +1 | +4 | +4 | +1 Intelligence |
| 5 | +3 | +1 | +4 | +4 | Bonus Feat |
| 6 | +4 | +2 | +5 | +5 | |
| 7 | +5 | +2 | +5 | +5 | Bonus Feat |
| 8 | +6/+1 | +2 | +6 | +6 | +1 Intelligence |
| 9 | +6/+1 | +3 | +6 | +6 | Bonus Feat |
| 10 | +7/+2 | +3 | +7 | +7 | |
| 11 | +8/+3 | +3 | +7 | +7 | Bonus Feat |
| 12 | +9/+4 | +4 | +8 | +8 | +1 Intelligence, Skill Mastry |
| 13 | +9/+4 | +4 | +8 | +8 | Bonus Feat |
| 14 | +10/+5 | +4 | +9 | +9 | |
| 15 | +11/+6/+1 | +5 | +9 | +9 | Bonus Feat, Skill Mastry |
| 16 | +12/+7/+2 | +5 | +10 | +10 | +1 Intelligence |
| 17 | +12/+7/+2 | +5 | +10 | +10 | Bonus Feat |
| 18 | +13/+8/+3 | +6 | +11 | +11 | Skill Mastry |
| 19 | +14/+9/+4 | +6 | +11 | +11 | Bonus Feat, Skill Mastry |
| 20 | +15/+10/+5 | +6 | +12 | +12 | +1 Intelligence |