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| Brand | Hansatech (distributed by SUSS, Germany) |
|---|---|
| Origin | United Kingdom |
| Model | M-PEA-1 |
| Power Supply | 12 V DC, 1 A |
| Operating Temperature | 0–40 °C |
| Dimensions | 230 × 190 × 85 mm |
| Weight | 1.4 kg |
| Data Interface | USB 2.0 |
| Sampling Rate | 10 µs |
| A/D Resolution | 16-bit |
| Actinic Light Source | High-intensity red LED (peak 625 nm, FWHM 20 nm), up to 5000 µmol m⁻² s⁻¹ |
| Far-Red Light Source | High-brightness LED with long-pass filter, >1000 µmol m⁻² s⁻¹ |
| P700⁺ Measurement | Modulated 820 nm LED (1–100% intensity, 1% step) |
| Fluorescence Detection | Low-noise, fast-response PIN photodiode with 730 nm ±15 nm bandpass filter |
| P700⁺ Detection | Low-noise, fast-response PIN photodiode with dedicated bandpass filtering |
| Optical Sealing | Quartz-glass encapsulation for dust, moisture, and contamination resistance |
| Brand | DianJiang |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | ECA-YLS01 |
| Price Range | USD 7,000 – 14,000 |
| Light Source | 470 nm Blue LED |
| Photosynthetic Photon Flux Density (PPFD) | 0–5000 μmol·m⁻²·s⁻¹ (adjustable) |
| Minimum Sampling Interval | 2 μs |
| Data Acquisition Rate | Up to 500,000 points per second |
| Onboard Storage | 4 GB microSD card |
| Interface | USB 2.0 |
| Display | 128 × 64 monochrome LCD |
| Power Supply | Rechargeable Li-ion battery (7.6 V, 2.6 Ah) |
| Weight | 400 g |
| Dimensions | 12.5 × 8.0 × 3.3 cm |
| Dark Adaptation Clip | Integrated, leaf-compatible design |
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