TM5120B Hand-held Tesla-Meter

TM5120B V2

1. Summary

TM5120B is a portable and multifunctional magnetic field measuring instrument. Equipped with a newly designed retractable and adjustable Hall probe featuring high sensitivity and low drift, it offers strong applicability, portability, and ease of operation, making it suitable for measuring magnetic flux density of DC (constant) or AC magnetic fields.

2. Features

• Range: 0 mT ~ 3000 mT.

• Accuracy: 1% or 2%.

• Switching AC or DC mode

• Unit switch: G, mT, kA/m, Oe.

• Supports measurement with dedicated PC software

• N/S polarity display.

• Relative measurement mode.

• Max. hold function.

• Alarm of exceeding the upper / lower limit (PC software).

• Supports one-key zeroing and auto power-off

• Standby up to 6 months per charge

• Supporting backlight.

• Battery remaining power display.

• Axial, radial probe are optional.

• Type-C port for power supply and data communication.

• Probe directly replaceable without recalibration for subsequent measurements

• Display refresh rate: 1 time/sec

• Data communication protocol: Modbus Protocol

• Optional magnetic shielding cavity.

3. Application

TM5120B Application

4. Probe Selection

☆ Optional Radial or Axial Hall Probe
Radial Hall probe
Axial Hall probe
• Standard configuration is Radial Hall probe，also can choose Axial Hall probe.

5. Specifications

Range		30 mT	300 mT	3000 mT^①
Resolution		1 μT	10 μT	0.1 mT
Measuring Range		2mT～3000mT
Accuracy	Class 1	DC：1%，AC：5%
	Class 2	DC：2%，AC：5%
Frequency Range		DC，40Hz~500Hz
Temperature Coefficient		± 0.1% / K
Zero Drift		± 0.1 mT/h
Display Digit		5
Remark		①: Calibration only covers 2.5T

6. General Specification

Power Supply	2 AA batteries or USB charging
Temperature Performance	Operating temperature: 0~45℃; Storage temperature: -20°C～70°C
Humidity Performance	Operating humidity: 20%～80% R·H, non-condensing Storage humidity: <85% R·H, non-condensing
Weight	About 285 g
Interface	Hall probe input interface, USB interface
Overall Dimensions	74 mm(W) × 41 mm(D) × 168 mm(H)
Probe Dimensions	3.8 mm(W) × 50 mm(D) × 0.6 mm(H)

7. Ordering Information

TM5120B Hand-held Tesla-Meter

8. Probe Selection

Serial Number	Picture	Name	Specification	Quantity	Remark
1		TM1100 Hall probe	Radial	1	Standard Accessory
2		TM1110 Hall probe	Axial	1	Optional
Note：The users should indicate the probe in the order contract.

TM5120B Handheld Tesla Meter.pdf

TM5120B Handheld Teslameter

TM5120B Hand-held Tesla-Meter

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