TECHNICAL SPECIFICATION
| Item | Specification | Marks |
| Case material | stainless steel | |
| Product diameter | φ16/19/22mm | Optional diameters |
| Installation mode | Drill hole | |
| Rated currency | 20mA | |
| Alarm mode | Intermittent alarm sound and red flashing light | 65Db/16mm, 75Db/19mm, 85Db/22mm |
| Protection level | IP65/IK09 | |
| Power supply | DC12V as default | DC24V optional |
| Working temperature | -25~55℃ |