LKC’s UTAS BigShot offers an intuitive interface and the ability to perform multiple ISCEV-compliant tests.

With LKC’s ultra-bright ganzfeld, perform ERGs in a way you never thought possible. The device is suitable for human use as well as small-to-midsized animals, and weighs in at a manageable 17 lbs (7.7 kg). 

UTAS BigShot can produce all ISCEV standard testing including:

  • Flash ERG with optional pattern testing (EOG and VEP also available)
  • Double flash, On/Off, S-Cone, photopic negative response, scotopic threshold response ERGs
  • OPTIONAL: Multifocal capability can be added. See more here.

UTAS BigShot features:

  • Flash stimuli from -50 dB to +4 dB in any color
  • Total flash range from -75 dB to +25 dB in 1 dB steps
  • Background luminance 0.005 to 1000 cd/m² in any color
  • Multifocal ERG – Multifocal VEP option utilizing long m-sequences
  • GLP (21CFR11) Compliance Pack option
    • Allows compliance with FDA electronic recordkeeping requirements
    • Enables electronic data submission to FDA
  • Color or white-only mini-ganzfeld option

LKC’s UTAS UBA-4204 Amplifier

LKC’s ultra low-noise digital amplifier results in better test results, the first time.

Utilize LKC’s UBA-4204 Amplifier while testing with UTAS BigShot for accurate results and experience complete patient isolation and safety through fiber optics.


Communication: Fully Isolated Fiber Optic TOSLink connection over 2 meter cable
Input Type: 4 channel differential with > 10 MΩ impedance
Connector Type: 1.5 mm Male DIN Safety electrode connections
Noise: < 1 μV rms @ 2000 Hz sampling rate, 10 kΩ input
CMRR: > 110 dB at 50-60 Hz
Frequency Range: DC or AC coupled options
Input Gain: 1, 2, 4, 8, 16, 32, 64 (user selectable)
Data Resolution: 3.7 nV / bit (Gain = 64) to 250 nV / bit (Gain = 1)
Input Range: ± 2 V (Gain = 1)
Stability: < 250 nV / °C drift
Accuracy: ± 2%
Sampling Rate: 500 Hz to 3750 Hz
Filters: High cut and low cut filters implemented in application software
Safety: No wires (fiber optics only) means no leakage currents!
Power Source: Rechargeable Li-Ion Battery provides up to 12 hours continuous use per charge
Recharge Time: 4 hours to 80% capacity, 8 hours to 100% – Charger included
Size: 5¾” x 3¼” x 1″ (14.6 cm x 8.3 cm x 2.5 cm)
Weight: 8 oz. (225 g), including battery