الوصف

Performance and features （1）The power switch is a rocker switch possessing two main functions and three positions (Power:ON-OFF-（ON）、Sensitivity: Normal-OFF-（Low）). The control of power source is easy and flexible. （2）The detector possesses the functions of sound and light alarm as well as an earphone. So it can beused both in the quiet and noisy environments. （4）Identification by tone: according to the ATD characteristics, the detector will be only subject to change in acoustic frequency and sound volume when detecting the small metal articles. But it will be subject to change in acoustic frequency and sound volume and tone. （5）Reset function:If the Reset is pressed, the detector will return to the normal waiting state for detection. It is very important when the false alarm occurs and the temperature of detected environment changes quickly. （6）Low voltage indication of battery:when the voltage is low, the detector will give out continuous alarm sound, the green READY lamp will stop flashing, and the red ALERT lamp will give out red rays. Related parameters （1）Working frequency:*5KHZ （2）Working temperature:**0°c**5°c （3）Power supply control:*-route switch (ON/OFF/ short-time work) （4）Alarm indication:loudspeaker, LED red and green lamps （5）Sealing property:IP*4; （6）Battery:*-piece 9V battery （7）Outer size:length *2cm; the detecting portion is 7 to 9cm wide and 2.6cm thick; the handle is 5cm wide and 3cm thick; （8）Weight:about **0g