China Made Hand Held Metal Detector, Portable Device

The MD-3003B1 is a high performance handheld metal detector designed to meet the exact requirements of the security industry. Typical uses will include body search for offensive weapons in crowd control, airport and border security, checking parcels and letters for metal objects and anywhere that hidden metal needs to be detected

Specifications:
Power voltage: 9V standard or rechargeable battery
Power: 270mW
Operating frequency: 22kHz
Operating current: <50mA
Operating voltage:7V-9V
Operating temperature: -10°C to +65°C
Net weight: 409g
Dimensions: 41(L) X 8.5(W) X 4.5(H)cm

User;s attention:
* Turn the power switch to turn on, while the green light. If there is no tone indicates no battery or the battery connection is bad, such as the non-stop sound, indicating that the battery should be renewed
* Sensitivity adjustment: with a small screwdriver inserted into the hole on the handle to rotate clockwise to adjust the sound, then counterclockwise
* Rotation was adjusted to not sound, then counterclockwise half turn, to meet the requirements of sensitivity
* Alarm: sound and light, vibration   
* Package : 1 piece metal detector (not including batteries)

Application:
   *Airports, stations, terminals, electronic detection examination room examination
   *Customs, frontier defense, defense department security checks
   *Medicine, food quality inspection business systems
   *The important places, such as playground safety inspection
   *The noble metal detection, such as gold and silver jewelry factory The MD-3003B1 is a high performance handheld metal detector designed to meet the exact requirements of the security industry. Typical uses will include body search for offensive weapons in crowd control, airport and border security, checking parcels and letters for metal objects and anywhere that hidden metal needs to be detected

Specifications:
Power voltage: 9V standard or rechargeable battery
Power: 270mW
Operating frequency: 22kHz
Operating current: <50mA
Operating voltage:7V-9V
Operating temperature: -10°C to +65°C
Net weight: 409g
Dimensions: 41(L) X 8.5(W) X 4.5(H)cm

User;s attention:
* Turn the power switch to turn on, while the green light. If there is no tone indicates no battery or the battery connection is bad, such as the non-stop sound, indicating that the battery should be renewed
* Sensitivity adjustment: with a small screwdriver inserted into the hole on the handle to rotate clockwise to adjust the sound, then counterclockwise
* Rotation was adjusted to not sound, then counterclockwise half turn, to meet the requirements of sensitivity
* Alarm: sound and light, vibration   
* Package : 1 piece metal detector (not including batteries)

Application:
   *Airports, stations, terminals, electronic detection examination room examination
   *Customs, frontier defense, defense department security checks
   *Medicine, food quality inspection business systems
   *The important places, such as playground safety inspection
   *The noble metal detection, such as gold and silver jewelry factory

Corrosion Resistant Submerged Pump

Corrosion-resistant submerged pumps rely on atmospheric pressure to raise the water level. With the movement of the piston, an approximate vacuum is created, and the water is forced up by the external atmospheric pressure. In principle, it can be divided into pneumatic pump, Centrifugal Pump, axial flow pump, mixed flow pump, screw pump and so on.

Corrosion Resistant Submerged Pump,Submerged Pump,Submerged Water Pump,Submersible Centrifugal Pump

Jiangsu Qiantu Trading Co., Ltd. , https://www.qiantupump.com