Active Spectrum
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| Brand | Active Spectrum |
|---|---|
| Origin | USA |
| Model | CM-1000 |
| Measurement Principle | Dual-wavelength (700 nm & 840 nm) reflectance-based relative chlorophyll index |
| Measurement Area | 1.35 cm Ø at 30.5 cm distance |
| Effective Measurement Range | 0–999 (unitless relative chlorophyll index) |
| Repeatability | ±5% of reading |
| Measurement Interval | 2 seconds per reading |
| Detector | Four photodiodes (2 for sample reflectance, 2 for ambient light compensation) |
| Data Storage | 1,350 records with GPS metadata |
| Power | Two AAA alkaline batteries (~3,000 measurements per set) |
| Operating Distance Range | 30.5 cm to 183 cm |
| Weight | Handheld, lightweight ergonomic design |
| Environmental Compensation | Automatic ambient light correction |
| Connectivity | Optional GPS integration via serial interface |
| Compliance | Designed for field-deployable agronomic and ecological monitoring in accordance with ISO 11097 (optical plant sensors), ASTM E2912 (standard practice for spectral reflectance measurements of vegetation), and GLP-aligned data integrity workflows |
| Brand | Active Spectrum |
|---|---|
| Origin | USA |
| Model | pH 400, pH 600 |
| pH Accuracy | ±0.01 pH (pH400), ±0.005 pH (pH600) |
| pH Range | 0.00–14.00 |
| Temperature Range | −5 to 120 °C |
| Temperature Accuracy | ±0.5 °C |
| Temperature Resolution | 0.1 °C |
| pH Resolution | 0.01 (pH400), 0.005 (pH600) |
| Calibration Options | 1-point, 2-point (pH400) |
| Data Storage | 10 readings (pH400), 65,000 readings (pH600) |
| Enclosure Rating | IP65 |
| Power | 3 × rechargeable AA batteries (8 h charge time) |
| Probe Type | ISFET-based, glass-free, interchangeable sharp-tip (soil/solid media) and blunt-tip (liquid/non-soil media) probes |
| Auto Temperature Compensation (ATC) | Yes |
| Dimensions | 80 × 160 × 36 mm |
| Weight | 379 g |
| Brand | Active Spectrum |
|---|---|
| Origin | USA |
| Model | SC900 |
| Measurement Units | PSI or kPa |
| Depth Resolution | 2.5 cm |
| Force Resolution | 5 PSI (35 kPa) |
| Depth Accuracy | ±1.25 cm |
| Force Accuracy | ±15 PSI (±103 kPa) |
| Penetration Range | 0–45 cm |
| Force Range | 0–1000 PSI (0–7000 kPa) |
| Max Insertion Speed | 182 cm/min |
| Max Load Capacity | 210 lb |
| Power | 4 × AAA alkaline batteries (≈12 months operation) |
| Data Storage | 772 soil profiles (GPS-off), 579 profiles (GPS/DGPS-enabled) |
| Display | 16-character × 2-line LCD |
| Weight | 1.25 kg |
| Cone Tip Diameter | 12.827 mm |
| Brand | Active Spectrum |
|---|---|
| Origin | USA |
| Model | TDR350 |
| Instrument Type | Multi-parameter Soil Analyzer |
| Probe Length Options | 3.8 cm, 7.6 cm, 12 cm, 20 cm |
| Measurement Principle | Time-Domain Reflectometry (TDR) |
| Volumetric Water Content (VWC) Range | 0–saturation |
| VWC Resolution | 0.1% VWC |
| VWC Accuracy | ±3.0% (at EC < 2 mS/cm) |
| Temperature Range | −30°C to +60°C |
| Temperature Resolution | 0.1°C |
| Temperature Accuracy | ±1°C |
| EC Range | 0–5 mS/cm |
| EC Resolution | 0.01 mS/cm |
| EC Accuracy | ±0.1 mS/cm |
| Probe Diameter | 0.5 cm |
| Probe Spacing | 3.3 cm |
| Data Storage Capacity | >50,000 geotagged records |
| Display | Backlit LCD |
| Brand | Active Spectrum |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | SM100 |
| Instrument Type | Portable |
| Detection Channels | 1 or 4 (configurable) |
| Measured Parameter | Volumetric Water Content (VWC) |
| Maximum Sample Mass Capacity | 1 kg |
| Operating Voltage | 3–5 V DC @ 6–10 mA |
| Output Signal | Analog voltage (0.5–1.5 V at 3 V excitation |
| Oscillation Frequency | 70–80 MHz |
| Resolution | 0.1% VWC |
| Accuracy | ±1–3% VWC (for soil EC < 8 mS/cm) |
| Sensing Volume | 6 cm × 2 cm × 0.3 cm |
| Standard Cable Length | 1.8 m (optional: 6 m |
| Handheld Meter Operating Temperature | −40 °C to +50 °C |
| Data Storage | ≥6 months continuous logging |
| Measurement Time | ≤1 s per reading |
| Interface | 2.5 mm stereo jack (3-conductor) |
| Data Transfer | USB cable |
| Enclosure Rating | IPX4 (splash-resistant) |
| Brand | Active Spectrum |
|---|---|
| Origin | USA |
| Model | WATCHDOG 2400 |
| IP Rating | IP66 |
| Power Supply | 4×AA batteries (alkaline: up to 10 months |
| lithium | up to 12 months) |
| Data Storage | Non-volatile memory with auto-failover protection |
| Display | Integrated LCD for real-time and daily min/max values |
| Sensor Capacity | Up to 4 internal soil moisture/temperature probes + up to 9 external sensors |
| Communication | RS-232 serial port |
| Compliance | CE, FCC Class B, RoHS |
| Brand | Active Spectrum |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Import Status | Imported |
| Model | WATCHDOG 2475 |
| Pricing | Available Upon Request |
| Brand | Active Spectrum |
|---|---|
| Origin | USA |
| Model | WatchDog 3000 |
| Communication | Cellular + Bluetooth |
| Power | Integrated Solar Charging System |
| Enclosure Rating | NEMA-4 / IP66 |
| Data Logging | Built-in Non-Volatile Memory |
| External Sensor Ports | Up to 2 |
| Compliance | FCC Part 15, IC RSS-210, RoHS |