US-1000 vs US-2000 Power Specifications
Ok, so awhile back there was some discussion about safety regarding using the US-1000 / US-2000 devices for transcranial treatment on twitter / X. I think this may have arisen due to lack of accurate data on the power levels of these devices listed specs. I ordered my US-1000 from Tenspros. When I look at their listings, there is possibly some inaccurate power specs for the US-1000 IMO. I would like to get some feedback / clarification on this if possible. US-1000 Specs from tenspros: Product Specifications: - Power Source: AC Adapter - 100-240 Volts AC Input (DC 15V) - Frequency: 1.0 MHz ± 10% - ERA Treatment Area: 6.16 cm² ± 20% - Temporal Maximum Power: 4W ± 20% - Output Mode: Pulse - Output Intensity: 1.6W/cm² (Low), 2.6W/cm² (Medium), 4.6W/cm² (High) - Duty Cycle: 8% (Low), 14% (Medium), 29% (High) - Pulse Width:Low: 8% 0.5mS ± 10%Medium: 14% 1mS ± 10%High: 29% 2mS ± 10% - Repetition Rate: 150Hz ± 10% - Working Time: 30 Minutes - Material of Applicator: Aluminum - Beam Type: Collimated US-2000 Specs from tenspros: Product Specifications: - Ultrasound Modulation/Acoustic Frequency: 1.0 MHz ±10% - Temporal Maximum Output Power: 6.4W ± 20% (Modulation duty cycle at 100%) - Output Power:(L) 0.32W ± 20%(M) 3.20W ± 20%(H) 6.40W ± 20% - Pulse Repetition Rate: 100Hz ± 10% - Modulation Duty Cycle (Duty Factor): (L) 5%, (M) 50%, (H) 100% - Effective Radiating Area (ERA): 4.0 cm² ± 20% - Beam Non-uniformity Ratio (BNR): 5.0 max - Max. Effective Intensity: 1.6 W/cm² ± 20% (Modulation duty cycle at 100%) - Effective Intensity:(L) 0.08 W/cm² ± 20%(M) 0.80 W/cm² ± 20%(H) 1.60 W/cm² ± 20% - Treatment Time: 5, 10, or 15 minutes - Preheat Time: 3-5 minutes - Wave Form: Pulsed or Continuous - Dimensions: 7.95" L x 1.93" W x 2.76" H (202 x 49 x 70mm) - Weight: 0.43 lbs (193g) (without adapter) - Material of Applicator: Aluminum - Beam Type: Collimated There seems to be a discrepancy in the Output intensity for the US-1000, whereas the US-2000 listings seem accurate, IMO. The US-1000 peak power output is lower, yet it's low, medium output power is listed as follows: