Features:

Model name: 96 pointer type frequency meter
Product category: pointer type-96 series
Product model: SD-96Hz
Precision grade: 0.5 or 1.0
Voltage：110V，220V，380V，415V，440V
Frequency：45-55Hz，45-65Hz，55-65Hz，47-53Hz，57-63Hz，450-550Hz，450-650Hz，550-650Hz

Model name: 96 vibrating-reed type frequency meter
Product category: pointer type-96 series
Product model: SD-96Hz
Precision grade: 1.0
Voltage：110V，220V，380V，415V，440V
Frequency：45-55Hz，45-65Hz，55-65Hz，47-53Hz，57-63Hz

Model name: 96 240°type Frequency meter
Product category: pointer type-96 series
Product model: SD-96 L Hz
Precision grade: 1.0
Voltage：110V，220V，380V，415V，440V
Frequency：45-55Hz，45-65Hz，55-65Hz，47-53Hz，57-63Hz，450-550Hz，450-650Hz，550-650Hz

Model name: 72 pointer type frequency meter
Product category: pointer type-72 series
Product model: SD-72Hz
Precision grade: 0.5 or 1.0
Voltage：110V，220V，380V，415V，440V
Frequency：45-55Hz，45-65Hz，55-65Hz，47-53Hz，57-63Hz，450-550Hz，450-650Hz，550-650Hz

Model name: 72 vibrating-reed type frequency meter
Product category: pointer type-72 series
Product model: SD-72Hz
Precision grade: 1.0
Voltage：110V，220V，380V，415V，440V
Frequency：45-55Hz，45-65Hz，55-65Hz，47-53Hz，57-63Hz

Model name: 72 240°type Frequency meter
Product category: pointer type-72 series
Product model: SD-72 L Hz
Precision grade: 1.0
Voltage：110V，220V，380V，415V，440V
Frequency：45-55Hz，45-65Hz，55-65Hz，47-53Hz，57-63Hz，450-550Hz，450-650Hz，550-650Hz

Model name: 48 pointer type frequency meter
Product category: pointer type-48 series
Product model: SD-48Hz
Precision grade: 2.5
Voltage：110V，220V，380V，415V，440V
Frequency：45-55Hz，45-65Hz，55-65Hz，47-53Hz，57-63Hz，450-550Hz，450-650Hz，550-650Hz