KANETEC TM-901EXP Teslameter (Gaussmeter) | DC 0–3000.0 mT, AC 40–500 Hz, N/S polarity, mT/G switchable, USB and analog output

KANETEC TM-901EXP Teslameter: DC 0–3000.0 mT

Overview

The TM-901EXP is a digital teslameter from KANETEC of Japan (Chinese trade name: Qiangli). It measures DC magnetic flux density with N/S polarity indication, and also AC magnetic flux density at 40–500 Hz. Ranging is automatic, and units can be switched between mT and G (EXP is the export model). It provides zero adjustment, max hold and auto power off, and measured values can be sent to a PC or recorder via USB digital output or analog output. The transverse probe TM-901PRB is supplied as standard; the axial probe TM-901AXL and the reference magnets TM-SMF and TM-AMF are available on request. The manufacturer notes that this instrument is not intended for electromagnetic wave measurement.

Key Specifications

• DC x1 mode: 0–200.0 mT: resolution 0.1 mT, ±(5% of reading + 3 digit); 200.1–3000.0 mT: resolution 1 mT, ±(5% of reading + 10 digit)
• DC x10 mode: 0–300.00 mT: resolution 0.01 mT, ±(3% of reading + 5 digit)
• AC mode (40–500 Hz): 0–150.00 mT (0.01 mT), 150.1–300.0 mT (0.1 mT), 301.0–1500.0 mT (1 mT); ±(5% of reading + 20 digit)
• Functions: Zero adjustment, N/S polarity indication, max hold, auto power off (can be disabled), mT/G switching
• Outputs: USB digital output, analog output
• Probes: Standard TM-901PRB (transverse, probe tip 1.0 × 3.5 × 65 mm, cable length 1000 mm); optional axial TM-901AXL (φ13 × 55 mm)
• Power: 4 × AA batteries; external power DC 5–6 V (USB bus power)
• Dimensions, weight and environment: 143 × 64 × 36 mm; approx. 290 g (with batteries and probe); operating temperature 0–40 ℃
• Accessories: TM-901PRB probe, batteries, carrying case

Applications

• Magnetic flux density checks on permanent magnets and magnetic assemblies.
• Residual magnetism checks on machined parts after demagnetization.

Specifications per the KANETEC TM-901EXP English specification sheet (official kanetec.co.jp PDF, archived on web.archive.org on 2026-05-17) (kanetec.co.jp, retrieved 2026-10-24).