Ophthalmic diagnostics — 4 machines side by side

Every value comes from the model’s manufacturer brochure. A dash means the brochure does not publish that figure — we never fill in a specification.

SPECIFICATION	LS slit lampsSUNKINGDOM MEDICAL INSTRUMENT	SK-T/R/Q applanation tonometerSUNKINGDOM MEDICAL INSTRUMENT	SK-850 / SK-950 perimetersSUNKINGDOM MEDICAL INSTRUMENT	SK-4000SUNKINGDOM MEDICAL INSTRUMENT
Specifications	RANGE LS-1A/B portable · LS-3/4 · digital LS-5/6 · LS-7 / 7DS / 7DE · LS-8 · LS-9 MAGNIFICATION 10X–16X (LS-1) up to 6.3X–40X (LS-7) SLIT continuous width 0–14 mm · length 1–14 mm ILLUMINATION warm LED, PWM control FILTERS neutral density · red-free · cobalt blue · built-in IR/UV (LS-7/8/9)	MEASURING ACCURACY ≤ 0.49 mN (0.066 kPa) LED ACCURACY ≤ 0.1 mmHg MEASURING RANGE 0–80 mmHg (0–10.64 kPa) DISPLAY LED + mechanical reading · switchable kPa / mmHg TYPES SK-T · SK-R · SK-Q (Haag-Streit, LS-7 series)	CALIBRATION automatic at start-up STIMULUS (850AS) Goldmann III · white STIMULUS (850AE) Goldmann I–V · white, red, blue · SWAP TESTS static and custom · plus kinetic (AE) ESTERMAN monocular / binocular SK-950B/C Linux · DICOM · single LED · doubtful-point retest · 2-in-1 binocular report · GPA	SK-4000A PVEP · FVEP · G-CVEP · PERG · FERG · EOG SK-4000B + mfERG · mfVEP (multifocal, long M-sequence) INPUT IMPEDANCE ≥ 600 MΩ CMRR 110 dB ACQUISITION TIME 5–4,000 ms ELECTRODE IMPEDANCE value + waveform display
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