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LZ-643 Gaussmeter/Teslameter
LZ-643 is a portable AC and DC gaussmeter among the LZ series gaussmeters. It is used for measuring the surface magnetic field of permanent magnets and the working magnetic field of DC motor and magnetic separators.

LZ-643 can display N/S, with the high resolution of 0.1G, it can be used for detecting the residual magnetic of machining, the remanence of work-piece and controlling the magnetic situation of plating materials, also detecting the magnetism of motors. With AC measurement function, it can be applied for detecting AC space magnetic field distribution.

LZ-643 has two 64 readings memory, which is convenient for recording measurement data in real time. It can be connected to computer by the USB interface, and quickly form the magnetic field monitoring and measurement system by dedicated acquisition software.



  • Portable, convenient to handle and store, for on site measurement
  • Automatically shut down time can be set, continuously use for more than 30 hours (turn off back-light)
  • DC/AC magnetic field
  • DC/AC maximum value hold
  • DC field polarity judge function
  • Probe automatic zero, relative measurement, upper and lower limit alarm sorting
  • Units: G, T, Oe, A/m
  • Two 64 readings memory for recording measurement data in real time
  • USB interface and dedicated acquisition software
  • Transverse probe/ axial probe with independent calibration value


Power four AA batteries (alkaline battery is recommended)
Display 3¾digital LCD display
DC Measurement Range: 30kG, 3kG, 300G
  Resolution: 10G, 1G, 0.1G
  Accuracy: (2%of reading +0.1%of range)
    (B<20kG, probe temperature15-35℃)
  Temperature coefficient: Maximum ±(0.06% of reading+0.01G)/℃
    probe temperature 15-35℃
  Display update rate: 2.5 rgd/s
AC Measurement Range: 3Kg, 300G
  Resolution: 1G, 0.1G
  Bandwidth: 10Hz-10kHz (sine magnetic field)
  Accuracy: ±(5%of reading +0.2%of range)
    (effective range, 1kHz sine magnetic field)
  Effective measurement range >0.33%range
  Rated measurement range >1%range
  Zero deviation : <0.2%range
  Temperature coefficient: Maximum ±(0.06%of reading)/℃
    probe temperature 15-35℃
  Display update rate: 2.5 rgd/s
Application Environment Instrument: 15-35℃(rated accuracy)
    35-45℃ (accuracy reduced by 0.2%)
  Probe: 15-35℃ (rated accuracy)
    35-45℃(accuracy reduced by 1%)
  Humidity: 35~75%
Interface: 5-core probe socket
Dimension: L173*W91*T42mm


Item Title Qua. Unit
1 LZ-643 Gauss Meter 1 set
2 Hall Probe 1 piece
3 Battery 4 pcs
4 User’s Manual 1 piece
5 Warranty Card 1 piece
6 CD for software 1 piece

As the products of our company are in constant updates, the change of products without pre-notice.