MQ-200 Portable Separate PAR Meter
The MQ-200 features a handheld meter to display and store measurements with a separate sensor head connected by a 2m long lead. The sensor head features a fully potted, domed-shaped design making it fully waterproof, weatherproof and self-cleaning. The head can be held by hand, mounted to a levelling plate, or attached to an optional sensor wand for taking measurements in hard to reach places. Photosynthetically active radiation (PAR), or photosynthetic photon flux (PPF), is the spectral range (wave band) of solar radiation from 400 to 700 nanometers that photosynthetic organisms are able to use in the process of photosynthesis.
Apogee quantum sensors measure photosynthetically active radiation. The MQ-200 features a handheld meter to display and store measurements with a separate sensor head connected by a lead. The sensor head features a fully potted, domed-shaped design making it fully waterproof, weatherproof and self-cleaning. The head can be held by hand, mounted to a levelling plate, or attached to an optional sensor wand for taking measurements in hard to reach places. Photosynthetically active radiation (PAR), or photosynthetic photon flux (PPF), is the spectral range (wave band) of solar radiation from 400 to 700 nanometers that photosynthetic organisms are able to use in the process of photosynthesis. Gardeners, greenhouse managers, growth chamber users and salt-water aquarists measure PAR to ensure optimal specimen health.
MQ-200 Quantum Separate Sensor with Handheld Meter |
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| Calibration Uncertainty: | ± 5% |
| Measurement Repeatability: | < 1% |
| Non-stability (Long-term Drift): | < 2% per year |
| Non-linearity: | < 1% (up to 3000 µmol m-2 s-1 ) |
| Response Time: | < 1 ms |
| Field of View: | 180° |
| Spectral Range: | 409 nm to 659 nm (wavelengths where response is greater than 50 % of maximum) |
| Directional (Cosine) Response: | 0.06 ± 0.06 % per °C |
| Temperature Response: | ± 5 % at 75° zenith angle |
| Operating Environment: | 0 to 50°C, < 90% non-condensing relative humidity up to 30°C, < 70% non-condensing relative humidity from 30 to 50°C, Separate sensors can be submerged in water up to depths of 30m |
| Meter Dimensions: | 12.6cm length, 7.0cm width, 2.4cm height |
| Sensor Dimensions: | 2.4cm diameter and 2.8cm height |
| Mass: | 180g |
| Cable: | 2m of shielded, twisted-pair wire. Santoprene rubber jacket (high water resistance, high UV stability, flexibility in cold conditions) |
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AM-320 Saltwater Submersible Sensor Wand
This accessory incorporates a mounting fixture at the end of a 40 inch (102 cm) segmented fiberglass wand and is well-suited for fresh and saltwater use. The wand unscrews into three sections for easier storage and transport. All radiation sensors are compatible with the wand, which allows the user to place the sensor in hard to reach areas such as in aquarium tanks and greenhouses.