| Model | WL-JT-120C |
| Power Supply | DC5V |
| Built-in Battery | Lithium battery DC3.7V |
| Standby Current | <25mA |
| Alarm Current | <450mA |
| Wireless frequency | 433MHz |
| Encoding | 1527/2264 |
| Casing Materials | ABS |
| Operating Conditions: Temperature: | -10℃~ +55℃ |
| Relative Humidity | ≤95%RH(No congelation) |
| Siren loudness | 85db (Internal siren) |
| Unit size | 17*11.5*3cm |