ZWO ASI992MM Pro — SWIR Cooled Monochrome Camera
The ZWO ASI992MM Pro is a Short-Wave Infrared (SWIR) cooled camera built on the Sony IMX992 InGaAs sensor. With high quantum efficiency across 0.4–1.7 μm, low read noise and dual-stage TEC cooling, it excels in astronomy, photonics research and industrial inspection.
Key Features
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Sensor: Sony IMX992 InGaAs CMOS (1/4″, 8.94 × 7.09 mm)
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Resolution: 2592 × 2056
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Pixel Size: 3.45 μm
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ADC: 12-bit output
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Read Noise: as low as 71 e⁻
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Full Well Capacity: 62.8 ke⁻
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Quantum Efficiency (QE): > 80% peak around 1200 nm
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Frame Rate: up to 70 fps
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Cooling: 2-stage TEC, ΔT ≈ 35–40 °C below ambient
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Buffer: 256 MB DDR3 for stable transfers
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Interface: USB 3.0
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Zero Amp Glow: clean long-exposure performance
Why Choose ASI992MM Pro?
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Outstanding SWIR sensitivity from visible to 1.7 μm for faint-signal work.
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Ultra-low noise architecture + DDR3 buffer = smooth, reliable data capture.
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Deep cooling dramatically reduces dark current for long integrations.
Typical Applications
- SWIR & NIR imaging for astronomy and spectroscopy
- Daytime star detection, thin-cloud/ haze penetration
- Industrial/ lab inspection, photometric measurement
- Optical communication and laser monitoring
Technical Specifications
| Sensor |
Sony IMX992 InGaAs CMOS |
| Sensor Size |
1/4″ (8.94 × 7.09 mm) |
| Resolution |
2592 × 2056 |
| Pixel Size |
3.45 μm |
| ADC |
12-bit |
| Read Noise |
~71 e⁻ |
| Full Well |
62.8 ke⁻ |
| QE Peak |
> 80% @ ~1200 nm |
| Max Frame Rate |
70 fps |
| Cooling |
Two-Stage TEC, ΔT ≈ 35–40 °C |
| Buffer |
256 MB DDR3 |
| Interface |
USB 3.0 |
Power & Compatibility
Requires an external 12 V DC (3–5 A) supply (5.5 × 2.1 mm, center-positive) or an 11–14 V lithium battery. Using power sources outside this range may damage the camera.
Note: Specifications and claims (read noise, QE, cooling delta, etc.) are based on manufacturer data and internal testing.
Available to order
Delivery time: Typically 3 weeks from order
