.Specification:
The WP Series Power Supplies are with high stability and high accuracy. The voltage and current can be adjustable and simple operation. They are suitable to supply DC Power for the standard lamp and the large power LED. Other voltage and current DC Power Supply can be designed

Specification:
• Measure Vrms, lrms, W, PF, Hz;
• Harmonic distortion analysis for voltage & current, display total harmonic and 0-50 times;
• Component harmonic, selectable for absolutely or relatively harmonic display;
• Voltage range:10.0-600.0V, Current range:0.010-20.00A, Auto

Specification:
• AC-DC-AC frequency conversion technology
• Digital wave synthesis, wave feed-back technology, low power distortion
• Controlled and tested by 16 bits MCU, which has high automation
• High speed 12 bits A/D sampling technology, exactly display Voltage, Current, Power,

Digital hearing aid 438 (new)
Full digital circuitry
Air conduction
Feedback reduction
Micro BTE design
Left & right ear adjustability
Digital volume control
High & low tone control
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Digital hearing aid 838
Specification:
Digital circuitry
Mini BTE design
Air conduction
Left and right ear adjustability
Digital Volume control
High or low tone control
Product size: 55x35x10mm
Weight: 4 g
Max. saturation sound pressure level(SSPL): 130dB±4dB
Full on Acoustic Gain:

Digital hearing aid 638
Specification:
Digital circuitry
Mini BTE design
Left or right ear adjustable
Detachable receiver
Digital Volume control
High or low tone control
Product size: 55x35x10mm
Weight: 7g
Testing Item Indicator
Max. saturation sound pressure level 130dB±4dB
Rated

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