This instrument is mainly used for remote measurement of various engine speeds. Each speed measuring generator can have two indicators working simultaneously. The SZD-21 electric tachometer strap has an alarm mechanism and can trigger an overspeed alarm.

□ Main technical indicators

Accuracy level: Level 1.5

The indicator can be used normally in environments with temperatures ranging from -20 ℃ to+50 ℃ and relative humidity below 85%. The alarm can be used normally in environments with ambient temperatures ranging from 0 to+50 ℃ and relative temperatures below 85%.

Dimensions: Indicator: 63 × 63 × 122.5

Speed generator: 48 × 48 × 130

Alarm: 113.5 × 53.5 × 105.5

Weight: Indicator 0.556kg

Alarm: 0.415 kg

Speed generator: 1.020kg

Socket: 0.0173 kg

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