A Plastic Optical Fiber Loss Test Set used to test power, loss, continuity and faults on PCS / POF / plastic optical fiber at 660 nm. In a small package, it provides a powerful solution to improve test flexibility and productivity. The large area 5 mm Si detector is compatible with all types of POF, and a wide variety of connector adpaters is available.

  • Easy to use, slim, rugged & versatile
  • Excellent source stability
  • Large clear LCD is sunlight readable & backlit
  • Large memory with Text Tag & time stamp
  • One button memory dump to USB key
  • KITS™ reporting software for acquisition and reporting
  • Autotest power meter
  • 1 % accuracy & 21 calibrated λ, ISO 17025 traceable 
  • Interchangeable connectors 
  • Multi-Fiber ID Test tone generator / detector
  • Long alkaline battery life with micro USB external power / charger

Key Features


KI2709XL-Si5 specifications
Detector type (meter) Si (5 mm)
Response wavelength (meter) 350 ~ 1100 nm
Calibration wavelengths (meter) 400, 430, 470, 490, 520, 550, 580, 600, 635, 650, 660, 670, 700, 740, 780, 820, 850, 880, 910, 940, 980 nm
Power range (meter) +10 ~ -50 dBm (440 ~ 635 nm) / +10 ~ -60 dBm (650 ~ 980 nm)
Mid-range linearity (meter) 0.04 dB
Total uncertainty (meter) 0.3 dB
ID tone detection & Autotest sensitivity (meter) -45 dBm
Output wavelength (source) Port 1: 660 nm LED
Wavelength initial tolerance 15 nm
Spectrum width @ FWHM (source) 25 nm
Output power (source) -6 dBm ±1 dB (@ 1 mm POF)
Adjust output power (source) Fixed
Modulated output (source) 270 Hz, 1 kHz, 2 kHz ± 2 %, 12 Multi-Fiber ID tones
General Loss Test Set KI 2700 Series specifications
Accuracy (meter) 1 % (0.06 dB)
Calibration validity (ISO17025) 3 years
Resolution (meter) 0.01 dB
Polarization sensitivity (meter) < 0.05 dB (typical)
Autotest 1-way: compatible with Kingfisher's 1-way Loss Test Sets & Power Meters (except KI9600 series)
Tone detection (meter) 150 ~ 9900 Hz ± 1 %
Battery life Laser/LED source: 90/80 hours (typical) in Autotest
Power Battery / External power via USB
Battery type 2x AA (LR6) Alkaline / 2x AA NiMH AA
USB interfaces USB-micro for power & software / USB-A for memory key
Auto off Selectable
Software KITS (free download)
Memory 1,000 four λ tests with date & time / Unlimited on USB
Case Polycarbonate (body) / rubber (edges & corners), moisture resistance, 1-meter drop tested
Display size 74 mm x 55 mm
Size 190 mm x 105 mm x 35 mm
Unit weight 0.42 kg
Shipping weight 1.5 Kg
Operating / storage temperature -15 to 55 °C / -25 to 70 °C
Relative humidity 0 ~ 95 %
Warranty 3 years

Documentation & Support


In the box


Padded Canvas Carry Pouch OPT149

Soft pouch with carry straps and compartments for accessories storage, able to carry 2x KI2000 series-size instruments.

Software (KITS)

Software (KITS)

Downloadable from Kingfisher's website for free.


Optional accessories


LC Connector Adapter - XL Power Meter, OPT226A

LC Simplex. For duplex LC use OPT224

USD $136.40

Add to Cart

1.25 mm Universal Connector Adapter - XL Power Meter, OPT224

1.25 mm Universal. Also fits duplex LC

USD $48.77

Add to Cart

2.5 mm Universal Connector Adapter - XL Power Meter, OPT225

2.5 mm Universal. Also fits duplex SC

USD $47.79

Add to Cart

USD $108.04

Add to Cart

SMA POF Connector Adapter - XL Power Meter, OPT203

SMA for POF with large pin-hole

USD $20.67

Add to Cart

USD $109.94

Add to Cart

USD $99.12

Add to Cart

POF-Multi Connector Adapter - XL Power Meter, OPT229

HFBR simplex and duplex, Mini Toslink, bare POF cable,, 2.5mm. Multi-Purpose POF Adapter for power meters. Turn the turret to the required hole size: 3.85, 3.5, 3.2, 2.55, 2.4, 2.3 mm, x 8.5 mm deep. For SMA connectors, use OPT203.

USD $205.97

Add to Cart

HFBR POF Connector Adapter - XL Power Meter, OPT231

For simplex / duplex / latching / non-latching POF HFBR, Versatile Link, Redlink connectors.

USD $111.47

Add to Cart

LC Hybrid Connector Adapter OPT076

LC Simplex, metal body.

USD $47.69

Add to Cart

FC Hybrid Connector Adaptor OPT051

FC. OPT081 is preferred for power meters, since FC ceramic sleeves break easily.

USD $18.48

Add to Cart

POF Multi-Connector Hybrid Adapter OPT077

POF Multi-Adapter for POF. For: HFBR all types, bare POF, Mini Toslink, 2.5mm, Versatile Link, Redlink. Ferrule sizes: 3.85, 3.5, 3.2, 2.55, 2.4, 2.3 mm x 8.5 mm deep. Please observe application advice.

USD $216.41

Add to Cart

HFBR Hybrid Connector Adapter OPT078

HFBR. For POF simplex / duplex / latching / non-latching HFBR / Versatile Link / Redlink connectors. Please observe application advice.

USD $110.39

Add to Cart

SMA Hybrid Connector Adapter OPT082

SMA. Please observe application advice

USD $100.68

Add to Cart

Semi-Rigid Carry Case for Test Kits OPT153-CASE

Canvas case with foam compartments for 2x KI2000 or KI7000 series instrument, 3x KI9000 series instrument and other accessories.

USD $264.64

Add to Cart

Semi-Rigid Carry Case for Test Kits OPT154B

Content: 1x Case (OPT154B-CASE) (suitable for 2x KI2000 series instrument, 1x Microscope, 1x VFL, Accessories); 5x 2.5mm Fiber Conn Cleaning Sticks; 5x 1.25mm Fiber Conn Cleaning Sticks; 1x Blower Brush (TOOL CLEAN-01A); 1x Fiber Conn Cleaning Cartridge(TOOL CLEAN-09A).

USD $393.99

Add to Cart
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