Detection
distance:1.Pin****0mm2.*4 model handgun**0mm3.6 inch long knife**0mm4.Diameter*0mm5.Steel Ball*0mmFeatures:1.Highly
sensitivity.2.Simple and convenient
to use, no adjustment is required.3.The detection distance
will not be changed when the battery voltage drops from 9V to about
7V.4.Low power consumption,
can work for *0 hours continuously.5.There is automatic and
continues alarm when the battery is used up.6.Switch on/off audio
prompt function.7.With external
rechargeable socket hole.8.Has audio, Light and
vibration handoff switch.Charger voltage: 9V for AC; *0V for DC.(The
charger shall be self-provided)