In optical communication testing,every improvement in precision and efficiency helps mitigate project risks and builds solid confidence for decision-making.To this end,Komshine unveils its brand-new 4.3-inch high-end instrument series,delivering an upgraded measurement experience for fiber link acceptance,cable deployment and construction.

The initial lineup includes five models:KLS-43、KPM-43(V)、KPM-43F、KVA-43 and PPM-43.More new products such as GOPN optical power meters will be launched successively.

I.Heritage&Innovation: Design Aesthetic of High-end Instruments

Our previous models KPM-25V and KLS-25M have won wide recognition thanks to their compact size,portability,stability and reliability. Still, Komshine keeps pushing forward.Our R&D team conducted in-depth field research to collect user feedback and practical demands,and adopted cutting-edge technologies to upgrade hardware for the new 4.3-inch instrument family.

Targeting common pain points in daily operation,the new products feature comprehensive upgrades in hardware configuration,touchscreen design and battery capacity.With overall optimized performance and user experience,this series is poised to become another blockbuster product line of Komshine.

II.Powerful Performance at a Glance

1.Optical Attenuator KVA-43

Driven by the large-scale deployment of AI computing networks,5G-A,all-optical networks,together with advances in high-speed optical communication and domestic substitution,the demand for optical attenuators continues to surge.

Tailored for the market trend,Komshine presents the KVA-43 optical attenuator.It offers a maximum attenuation range of 80dB,ideal for long-haul trunk,multi-stage PON optical split systems and legacy links with high loss.Featuring an attenuation error as low as 0.2 dB and customizable calibrated wavelengths,it adapts to a wide range of professional testing scenarios.

2.Optical Multimeter PPM-43

Integrating an optical light source and an optical power meter,this all-in-one device is portable,efficient and greatly boosts productivity in fiber construction and maintenance.

The PPM-43 features consistent optical path calibration with higher precision and richer functions.Its optical power meter supports 9 calibrated wavelengths covering mainstream application scenarios,with a measuring range down to -70 dBm and power stability of±0.1 dB.The built-in light source delivers ultra-stable output:fluctuation within 0.05 dB over 15 minutes,and within 0.2 dB for 8 hours of continuous operation.

3.Stabilized Light Source KLS-43

A stabilized light source is an essential tool for optical link testing,fiber sensing,cable construction and maintenance.The KLS-43 outputs standard 0 dBm reference optical power with outstanding long-term stability.It is widely used for link loss testing,cabling acceptance and on-site calibration of optical power meters.Its output error is limited to±0.05 dB within 15 minutes,and merely±0.2 dB during 8-hour continuous operation.

4.Optical Power Meter KPM-43(V)

The optical power meter is a staple device for optical communication O&M.The KPM-43 supports 9 commonly used test wavelengths to fit various engineering scenarios.Equipped with a 1000μm large receiving aperture,it improves light reception efficiency and simplifies fiber alignment.It achieves a power stability of 0.1 dB and measurement accuracy of±0.2 dB.The upgraded KPM-43V combines optical power testing with a visible red light source to quickly locate fiber fault.

5.Wavelength-selective Optical Power Meter KPM-43F

According to data from the Ministry of Industry and Information Technology of China,by the end of 2025,the country had deployed over 31 million 10G PON ports,serving 238 million gigabit broadband users.10G PON has entered large-scale commercial application.

Conventional optical power meters cannot distinguish signals of different wavelengths,which easily leads to misdiagnosis.Thus professional wavelength-selective power meters have become an industry necessity.

The KPM-43F is specially developed for PON networks,supporting mainstream calibrated wavelengths of 1310nm,1490nm,1270nm and 1577nm,and fully compatible with GPON and 10G PON systems.Adopting advanced filtering and isolation technology with isolation above 35 dB and a narrow passband of 1270–1520nm,it accurately separates 1490nm and 1550nm signals,eliminates wavelength crosstalk and ensures reliable test results.

III.Comprehensive Upgrades in Hardware&Software

Hardware Upgrades

The new 4.3-inch series boasts expanded calibrated wavelength coverage,catering to broadband,PON,5G and WDM scenarios.All models are fitted with a 4.3-inch high-definition touchscreen,replacing traditional physical buttons for simpler and more intuitive operation.

The built-in 5000mAh battery delivers extended working hours.Besides,the full series comes with a standard RJ45 port for network cable sequence testing.The full-body shockproof rubber casing enhances drop resistance and prolongs service life.

User Experience Optimization

We have further optimized usability,reliability and compatibility for better  humanized design:

User-friendly Design:Auto power-off after 10 minutes of inactivity saves power and protects the device.Models including OPM-33V,PPM-43 and KPM-43F support one-click data storage for up to 1,000 records,which can be exported via USB.

High Reliability:Every unit undergoes strict performance and calibration tests before delivery to guarantee stable quality.

Wide Compatibility:Equipped with detachable universal adapters,the devices allow quick replacement of connectors to adapt to diverse field interfaces.

Measurement turns the unknown into the known;precision brings clarity to ambiguity. Komshine 4.3-inch High-end Instrument Series,live up to every testing task.