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| Brand | R.M. Young |
|---|---|
| Origin | USA |
| Model | 41382VC |
| Temperature Range | -50 to +50 °C |
| Temperature Accuracy | ±0.3 °C @ 23 °C |
| Temperature Resolution | 0.1 °C |
| Relative Humidity Range | 0–100 %RH |
| RH Accuracy | ±1 %RH @ 20 °C |
| RH Stability | <1 %RH/year |
| Response Time (with radiation shield) | 10 s |
| Output Signal | 0–1 VDC or 0–5 VDC (jumper-selectable) |
| Power Supply | 12–30 VDC |
| Operating Ambient Temperature | -50 to +50 °C |
| Dimensions | Ø64 mm × 176 mm |
| Weight | 200 g |
| Sensor Type (Temp) | Platinum RTD (Pt1000) |
| Sensor Type (RH) | Rotronic Hygromer® capacitive polymer |
| Recommended Cable | 5-conductor shielded (Young P/N 18723) |
| Optional Radiation Shields | 43502 (aspirated), 41003P (multi-layer passive) |
| Brand | Vaisala |
|---|---|
| Origin | Finland |
| Model | HMP60 |
| Temperature Range | −40 to +60 °C |
| Temperature Accuracy | ±0.6 °C (full range), ±0.5 °C (10–30 °C) |
| Temperature Resolution | 0.1 °C |
| Relative Humidity Range | 0–100 %RH |
| RH Accuracy | ±3 %RH (0–90 %RH, 0–40 °C), ±5 %RH (90–100 %RH, 0–40 °C) |
| Dew Point Range | −40 to +60 °C |
| Dew Point Accuracy | ±2 °C (ΔT ≤ 15 K, 0–40 °C), ±3 °C (ΔT ≤ 15 K, −40–0 °C & 40–60 °C) |
| Output Options | Dual analog voltage (0–1 V, 0–2.5 V, 0–5 V, or 1–5 V DC), optional RS485 (Modbus RTU), optional 4–20 mA loop-powered output |
| Supply Voltage | 5–28 VDC (8–28 VDC with 5 V auxiliary output) |
| Typical Current Consumption | 1 mA (average), 5 mA (peak) |
| Warm-up Time | 2 s (analog), 1 s (digital) |
| Enclosure Material | AISI 316 stainless steel housing, chrome-plated ABS grille filter (optional stainless steel filter) |
| IP Rating | IP65 |
| Mechanical Interface | M12×1 thread, 10 mm depth |
| Connector | 4-pin M8 (IEC 60947-5-2) |
| Dimensions | 71 mm × Ø12 mm |
| Weight | 23 g (with 0.3 m cable) |
| Brand | Vaisala |
|---|---|
| Origin | Finland |
| Model | HMP110 |
| Temperature Range | −40 to +80 °C |
| Temperature Accuracy | ±0.2 °C (0–40 °C), ±0.4 °C (−40–0 °C & 40–80 °C) |
| Relative Humidity Range | 0–100 %RH |
| RH Accuracy | ±1.7 %RH (0–90 %RH, 0–40 °C), ±2.5 %RH (90–100 %RH, 0–40 °C) |
| Resolution | 0.1 °C / 0.1 %RH |
| Power Supply | 5–28 VDC |
| Output Options | Dual analog (0–1 V, 0–2.5 V, 0–5 V, or 1–5 V DC), optional RS485 digital interface |
| IP Rating | IP65 |
| Housing Material | Stainless steel (AISI 316) |
| Sensor Type | Vaisala HUMICAP® 180R (humidity), Pt1000 RTD Class F0.1 (temperature) |
| Dimensions | 71 mm × Ø12 mm |
| Weight | 23 g |
| Warm-up Time | ≤4 s (analog), ≤1 s (digital) |
| EMC Compliance | EN 61326-1 |
| Calibration | Traceable to NIST-equivalent standards, supplied with ISO/IEC 17025-accredited calibration certificate |
| Brand | R.M. Young |
|---|---|
| Origin | USA |
| Model | 41382LC2 |
| Temperature Range | -50 to +50 °C |
| Temperature Accuracy | ±0.3 °C (@ 23 °C) |
| Temperature Resolution | 0.1 °C |
| Relative Humidity Range | 0–100 %RH |
| RH Accuracy | ±1 %RH (@ 20 °C) |
| RH Stability | <1 %RH/year |
| RH Response Time | 10 s (unshielded) |
| Temperature Response Time | 10 s (unshielded) |
| Output Signal | 4–20 mA (2-wire loop-powered) |
| Supply Voltage | 12–30 VDC |
| Max Current Draw | 46 mA |
| Sensor Type | Pt100 RTD (temperature), Rotronic Hygromer® (humidity) |
| Enclosure Dimensions | Ø64 mm × 176 mm |
| Weight | 200 g |
| Recommended Cable | 2-pair shielded, 22 AWG |
| Optional Radiation Shield | Model 43502 (aspirated) or Model 41003P (multi-plate) |
| Brand | NK |
|---|---|
| Origin | USA |
| Model | DROP D2HS |
| Temperature Range | -10 to 55°C |
| Temperature Accuracy | ±0.5°C |
| Resolution | 0.1°C |
| Operating Environment | -18°C to 60°C |
| Power Supply | User-replaceable CR2032 coin cell |
| Dimensions | 6 × 4.5 × 2.3 cm |
| Weight | 34 g |
| IP Rating | IP67 (30-min submersion) |
| Shock Resistance | MIL-STD-810G (1 m drop) |
| Data Capacity | >7,000 temperature/humidity records |
| Battery Life | Up to 4 months (typical use) |
| Wireless Range | Up to 30 m (100 ft) via Bluetooth® 4.0+ |
| Computation Capabilities | Heat Stress Index (HSI), Dew Point Temperature |
| Brand | Vaisala |
|---|---|
| Origin | Finland |
| Model | HMP155 |
| Temperature Range | -80 to +60 °C |
| Temperature Accuracy | ±0.2 °C (at 20 °C, Pt1000 F0.1 per IEC 60751) |
| Relative Humidity Range | 0–100 %RH |
| RH Accuracy | ±1 %RH (15–25 °C, 0–90 %RH) |
| Resolution | 0.1 °C / 0.1 %RH |
| Operating Voltage | 7–28 VDC |
| Output Options | 0–1 V, 0–5 V, 0–10 V, RS485, Pt100 (4-wire) |
| Probe Dimensions | 267 mm × Ø40 mm |
| Weight | 86 g |
| Enclosure Rating | IP66 |
| Sensor Protection | Sintered PTFE Filter |
| Heating Function | Optional continuous probe heating (XHEAT) |
| Chemical Purge | Optional |
| EMC Compliance | EN 61326-1 (Industrial Environment) |
| Brand | Davis |
|---|---|
| Model | 6345 |
| Origin | USA |
| Instrument Type | Wireless Soil Moisture and Temperature Monitoring System |
| Operating Temperature (Host) | −40 °C to +65 °C |
| Storage Temperature | −45 °C to +70 °C |
| Power Supply | CR123A 3 V Li battery + 0.5 W solar panel |
| Battery Life | 8 months (no sun), up to 2 years (typical insolation) |
| Wireless Range | up to 300 m (line-of-sight), 75–150 m (obstructed) |
| Radio Frequency | 868.0–868.6 MHz, 8 channels, ~8 mW output |
| Soil Moisture Sensor (6440) | Resistive type, 0–200 cbar range, 1 cbar resolution, 4.6 m standard cable (extendable to 30 m) |
| Soil Temperature Sensor (6470) | Thermistor-based, −40 °C to +65 °C, ±0.5 °C accuracy, 1 °C resolution, 4.6 m standard cable (extendable to 244 m on 22 AWG) |
| Data Logging | Non-volatile RAM + optional SD card storage |
| Display | Backlit LCD console (151 × 86 mm active area) |
| Mounting Mast | 1 m galvanized steel tube, Ø33 mm |
| Host Dimensions | 158.75 × 57.15 × 200 mm |
| Host Weight | 0.49 kg (battery included, sensors excluded) |
| Console Dimensions | 270 × 156 × 41 mm |
| Console Weight | 0.85 kg (with batteries) |
| Software | WeatherLink v6.x (Windows/macOS), supports CSV export, time-series plotting, alarm thresholds, and multi-station aggregation |
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