Specifications:

ST-1EW
- Supply voltage: a.c.220 V, 50 Hz
- Electric current: 2.4 A
- Power: 545 VA
- Air flow: 70 L/min
- Star pressure: 0.5 MPa
- Capacity discharge: 0.8 MPa
- Noise level: 55 dB(A)
- Air container volume: 32 L
- Weight: 28 kg
- Dimensions (H*W*D): 460*460*690 mm (carton)

ST-2EW
- Supply voltage: a.c.220 V, 50 Hz
- Electric current: 3.7 A
- Power: 840 VA
- Air flow: 105 L/min
- Star pressure: 0.5 MPa
- Capacity discharge: 0.8 MPa
- Noise level: 58 dB(A)
- Air container volume: 38 L
- Weight: 30 kg
- Dimensions (H*W*D): 460*460*710 mm (carton)

ST-3EW
- Supply voltage: a.c.220 V, 50 Hz
- Electric current: 4.8 A
- Power: 1090 VA
- Air flow: 140 L/min
- Star pressure: 0.5 MPa
- Capacity discharge: 0.8 MPa
- Noise level: 65 dB(A)
- Air container volume: 60 L
- Weight: 66 kg
- Dimensions (H*W*D): 900*440*770 mm (wooden box)