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The sensitivity of this instrument is determined on the basis of audibility of its warning signal. This warning signal cannot be heard during configuration of its sensitivity modification switch on threshold point. The sensitivity of this metal detector is reduced during the counter clockwise rotation of its switch. After adjustment of its sensitivity level, this metal detecting system can identify presence of metal from 16 cm coin, 9 mm to 35 mm gun and from 9 mm long bullet.
The utilization of earphone may check audibility of sound and LED equipped alarm.
1 each 9 V - 250 mAh NiMH (Easy to replace and can be recharged sans any trouble)
d. Recharging period
It can be recharged initially within ~15 hours and can be recharged alternatively after each gap of 8 hours. One can recharge it from network 220 VAC - 50 Hz directly.
4 mA in stand by mode ~12 mA at the time of detection
f. Battery voltage test
The emission of yellow colored light and sound signal denote requirement of recharging when battery status is low.
35 x 8 x 3.1 cm
During the functioning of the HHMD unit, the parameters of sensitivity needs to be modified with the help of its down/up arrow push buttons located on its touch pad membrane. Its 1st LED denotes highest and the 5th Led indicates least sensitivity features. The beginning of its automatic calibration process indicates about working status of its HHMD unit. We suggest to press red colored trigger button located at its side to start the instrument. All these features of this metal detector is meant for minimizing battery usage so that recharging period can be decreased sans lowering its duration of usage.
j. Operation temperature
- 15 C / + 65 C (May be improved upon request)
k. Storage temperature
- 30 C / + 65 C
l. Outer housing
The outer part is made of standard grade ABS material.
Perfect for professional utilization purpose.