Model Number: TES-1390/1391/1392 Brand Name: TLead Key Specifications/Special Features: Designed to provide user a quick, reliable and easy way tomeasure electromagnetic field radiation levels around power lines,home appliances and industrial devicesCost effective, handheld instrument designed and calibrated tomeasure electromagnetic field radiation at differentbandwidthsDisplay micro tesla and milligauss in the same testerData hold, peak hold functionOnline computer (1391/1392), data logging (1392) function

Display: 3 digits

Maximum indication: 1999

Range: 200/2000 milligauss, 200 micro tesla

Resolution: 0.1/1 milligauss, 0.01/0.1 micro tesla

Number of axis: single axis

Bandwidth: 30 to 300Hz

Accuracy: ±(3% + 3d) at 50Hz/60Hz

Over-input display shows OL

Sampling time: 0.4 second

Battery: 4pcs AAA (alkaline battery)

Battery lifespan: 60 hours

Operating temperature and humidity: 0 to 40°C (32 to104°F), below 80% RH

Storage temperature and humidity: -10 to 60°C, below 70%RH

Weight: 165g

Dimensions: 111 (L) x 64 (W) x 34mm (H)

Accessories: operation manual, RS232 interface/software(1391/1392)

Data logging capacity: 16,000 point data logging(TES-1392)