Thiết bị hiệu chuẩn Trig-Tek Inc. 402H

Internal Frequency Selection: 62.5 Hz, 125 Hz, 250 Hz, 500 Hz, and 1000 Hz.

Frequency Accuracy: ±0.5% of setting.

Int-Ext Frequency: “Ext” position allows different frequencies than the internal available frequencies; external frequency range is from 60 to 1000 Hz.

Sound Level Selection: 120 dB, 130 dB, 140 dB, 150 dB, and 160 dB.

Sound Level Accuracy: ±1 dB.

Power: 110 to 130 VAC, or internal rechargeable DC battery.

Percent Charge LED: Four LEDs to indicate above “20,” “40,” “60,” or “80%” charge for the battery.

Case Dimensions: 12" W × 7.5" H × 12" D (30.5 cm × 19 cm × 30.5 cm).

Weight: 23 lbs, with sound transducer.

Datasheet