| Big crescent shaped display |
| LED display,blue,green, yellow and red light indicate the distance from far to near, safety to dangers |
| Rated working voltage: 10V~16V DC |
| Operating temperature: -40 ~ +80 |
| Operating current: 20~220mA |
| Ultrasonic frequency: 40±1KHz |
| Detection Distance: 30~250CM |
| 2years warranty |
| ROHS, CE, FCC Products certificate |
| with 4sensors , 1 display , 1 drill ,1 control box , 1 0.8mm power cable etc. |