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Click to Enlarge Klas®-S  Download Data Sheet
Mini LLLT Unit
Red Laser 660nm/50 ~ 100mW
Infrared Laser 808nm/110mW

Klas-S is developed from "Laser Biostimulation" theory and "Low Level Laser Therapy (LLLT)" medical approval. This newest and patented device is made using the combination of modern laser technology and advanced integrated-circuit control.

Klas-S is the most scientifically advanced and effective LLLT device, is better than any personal care LLLT device available without a prescription.

Dr. Pekka K. Pöntinen of Scandinavia, the world's leading authority of LLLT, believes that the day will come when most homes will have a flash-light sized, low level laser device, capable of treating a wide range of medical problems from headaches and arthritis to burns and sports injuries.

Klas-S is specially designed and clinically proven for personal at-home treatments as a mono therapy or as a complementary treatment.

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Visible red laser with moderate laser power applicable for most LLLT's. Special optics design for even dispersion of laser beam. Advanced mechanism design leads to the minimum laser leakage.
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  • Operation
  • Features
  • Specifications
  • Accessory
  • Model No.
  • Treatment Time

Constant laser intensity is maintained by:

Specially designed laser beam evenly irradiates the treating area.
Innovative optics structure with the protection glass of anti-reflection coating leads to the maximum output laser power.
It is recommended to use alcohol for cleaning the optical glass.
Advanced integrated circuit designed by Konftec to maintain the specific power output even the batteries are in low capacity.
Safe   Konftec's integrated circuit design with full protection of:
EDS (Electrostatic Discharge)
short-term reverse battery connection
Convenient   Shockproof with all stainless steel robust construction and the compact assembly can be put in the pocket or hand bag for fully portable handling.
50 °C high temperature operation durability suitable for use ANYTIME! ANYWHERE!
Easy to Use   Vandal resistant stainless steel pushbutton switch for the simplest operation, can easily be used by private individuals for specific treatments as directed by a medical practitioner.
Powered by three alkaline AAA batteries which provide Klas-S50 approximately 9 hours continuous operation. The batteries can also be purchased from the local stores.
Operation Environment  660nm: 0 ~ 60 °C (32 ~ 140 °F); 10 ~ 95%RH (Non-condensing)
808nm: 0 ~ 50 °C (32 ~ 122 °F); 10 ~ 95%RH (Non-condensing)
Power Supply  3 x AAA or Rechargeable Battery
Laser Material  Semiconductor Laser Diode
Laser Wavelength 
… Output Power 
660nm…50mW or 100mW
The measured output power data shown in the delivered test report indicates the power from the laser diode.
Laser Beam Spot Size  Close Contact Area…3 cm²
Housing Material  Stainless Steel
Switch  Vandal Resistant Pushbutton; Stainless Steel Housing and Bezel
Enclosure Protection  IP65 (NEMA 6)
Protection against dust
Protection against water spray
Dimensions  118(L) x Ø26 mm; 4.6(L) x Ø1 in.
Weight  200 g (7.1 ounce), Includes Batteries
 Verification  EMC Directive 93/42/EEC
(Operation Environment: Medical Electrical Equipment)
Standard Applied: IEC 60601-1 and EC 60601-1-2
Medical Device Certificate  ISO 13485: 2003
Aluminum Case WC-120
Dimensions  254(L) x 164(W) x 50(H) mm
10(L) x 6.6(W) x 2(H) in.
Click to Enlarge
Weight  0.4 Kg (0.9 Lb)
Model No. Picture Laser Wavelength Output Power Power Density
Battery Operation Time
LD Power End Power
Klas-S50 Click to Enlarge 660nm 50mW 30mW 0.01 9 Class IIIa
Klas-S61 100mW 60mW 0.02 5 Class IIIa
Klas-S81 Click to Enlarge 808nm 110mW 44mW 0.015 4 Class IIIb
   Laser Effective Area = Laser Beam Spot Size…3 cm²

  Treatment Time (second) = Dose (J/cm3) x 1000 x Laser Beam Spot Size (cm²)
End Power (mW) x Energy Loss Factor (/cm)

Treatment Time Calculation Table- Klas series
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    ISO 13485
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Klas Therapy Protocol
Klas Batteries Installation Guide
Klas-S50, -S61
Meets FDA (CDRH) Class IIIa Safety Regulation
Treatment Time Calculation Table
- Klas series
Download PDF File Klas-S User's Guide
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