| Power supply | 4.5 V-6.5V( 4pcs dry battery) |
| Typical current | <50 u A (batteries for more than one year) |
| Working current | mA <250 |
| Number of visits | <=100 groups (9 groups of managers and 91 groups of users) |
| Number of open door machines | <=300 groups (9 groups of managers and 291 groups of users) |
| Door number | <=300 groups (9 groups of managers and 291 groups of users) |
| Rejection rate: | ≤0.15% |
| False rate: | ≤0.00004% |
| Working temperature: | -10℃~60℃ |
| Relative degree: | 20% ~ 93% |
