| Sensor: | Sensor Cord |
| Sound level: | 90dB |
| Sound Frequency: | 3.1-3.5 KHz / Alarm |
| 2.8-3.3 KHz / Chime | |
| Power consumption: | 200mA |
| Power source: | 9V-006P |
| Size: | 160 x 44 x 25mm |
| Weight: | 85g |
| Packing: | Blister packed |
| Inner/carton quantity: | 25/100 |
| Carton weight: | 9.5kg |
| Carton size: | 0.09cbm |
| Color: | Black |
TA-988
Electronic Door Knob Alarm