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| Brand | R.M. Young |
|---|---|
| Origin | USA |
| Model | 41502 |
| Material | UV-stabilized white thermoplastic housing, anodized aluminum support frame, stainless steel mounting hardware |
| Dimensions | 20 cm (diameter) × 33 cm (height) |
| Net Weight | 1.1 kg |
| Shipping Weight | ~2.7 kg |
| Power Supply | 12–14 VDC @ 500 mA |
| Airflow Rate | 5–11 m/s (16–35 ft/s), dependent on sensor power draw |
| Radiative Error (Temperature) | ≤0.2 °C RMS at 1000 W/m² solar irradiance |
| Delta-T Error | ≤0.05 °C RMS under identical shielding exposure |
| Fan Lifetime | >80,000 hours continuous operation at 25°C |
| Sensor Compatibility | RTD-based temperature probes (e.g., 41342), combined RH/T probes (e.g., 41382) |
| Output Options | 4–20 mA or 0–1 VDC |
| Operating Environment | Outdoor, all-weather, low-wind-speed microclimates |
| Brand | Airmar |
|---|---|
| Origin | USA |
| Model | 33-627-02 |
| Measurement Range | 10–95% RH |
| Accuracy | ±5% RH |
| Resolution | 1% RH |
| IP Rating (when installed) | IPX4 |
| Compatible Systems | Airmar 110WX, 120WX, 150WX, 200WX, 220WX Weather Stations |
| Brand | R.M. Young |
|---|---|
| Origin | USA |
| Model | 41342 |
| Measurement Range | −50 to +50 °C |
| Accuracy (at 0 °C) | ±0.3 °C (standard), ±0.1 °C (optional) |
| Time Constant | 42 s (with 43408 radiation shield) |
| Sensor Type | 1000 Ω Pt RTD, 4-wire configuration |
| Output Options | Resistance (41342), 0–1 VDC (41342VC), 4–20 mA (41342LC) |
| Calibration | Selectable °C or °F |
| Recommended Radiation Shield | 43502 (aspirated) or 41003P (multi-plate passive) |
| Recommended Cable | 2-pair shielded, 22 AWG (P/N 18641) |
| 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 | R.M. Young |
|---|---|
| Origin | USA |
| Model | 41342VC |
| Output Signal | 0–1 VDC |
| Sensor Type | Pt1000 RTD (4-wire) |
| Measurement Range | −50 to +50 °C |
| Accuracy @ 0 °C | ±0.3 °C (standard), ±0.1 °C (optional) |
| Time Constant | 42 s (with Model 43408 radiation shield) |
| Calibration Options | °C or °F |
| Enclosure | Weatherproof terminal housing |
| Recommended Radiation Shield | Model 43502 (aspirated) or Model 41003P (multi-plate passive) |
| Recommended Cable | 2-pair shielded, 22 AWG (e.g., Part #18641) |
| 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 | NK |
|---|---|
| Origin | USA |
| Model | DROP D2AG |
| Channel Count | Multi-channel |
| IP Rating | IP67 (30-min submersion) |
| Drop Resistance | MIL-STD-810G (1 m drop) |
| Operating Range | –10°C to 55°C (14°F to 131°F) |
| Temperature Accuracy | ±0.5°C (±0.9°F) |
| Humidity Sensing | Capacitive Polymer Sensor |
| Battery | CR2032 Lithium Coin Cell (up to 4 months typical life) |
| Memory Capacity | >7,000 temperature/humidity data points |
| Wireless Protocol | Bluetooth® 4.0 Low Energy (BLE) |
| Max Wireless Range | 30 m (100 ft) line-of-sight |
| Dimensions | 24 × 46 × 60 mm |
| Weight | 34 g |
| Calculated Indices | Heat Stress Index (HSI), Dew Point Temperature, Temperature-Humidity Index (THI) |
| Compliance | RoHS, FCC Part 15, IC RSS-247 |
| Brand | R.M. Young |
|---|---|
| Origin | USA |
| Model | 41003 |
| Dimensions | 12 cm (D) × 27 cm (H) |
| Weight (net) | 0.7 kg |
| Mounting | U-bolt clamp for masts up to 2 inches (50.8 mm) diameter |
| Sensor compatibility | 41003 — up to 16 mm diameter |
| Radiative error (at 1080 W/m² solar irradiance) | ≤0.4 °C RMS @ 3 m/s wind speed |
| Housing material | UV-stabilized white thermoplastic with high-reflectivity, low-thermal-conductivity disk |
| Compliance | Designed per WMO Guide to Meteorological Instruments and Methods of Observation (CIMO Guide), ISO 4690:2022 (Environmental monitoring — Performance requirements for radiation shields), ASTM D7237-21 (Standard Practice for Evaluation of Radiation Shields for Air Temperature Sensors) |
| 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 | NK |
|---|---|
| Origin | USA |
| Model | DROP D3 |
| Channel Count | Multi-channel |
| Dimensions | 6 × 4.5 × 2.3 cm |
| Mounting | Wall-mountable |
| IP Rating | IP67 |
| Weight | 34 g |
| Bluetooth Range | Up to 30 m (100 ft) line-of-sight |
| Logging Interval | Configurable from 2 sec to 12 hr |
| Battery Life | Up to 3 months (typical use, 1-min interval) |
| Memory Capacity | 16,384 data points per sensor |
| Operating Temperature | –20 °C to 60 °C |
| Relative Humidity Range | 0–100 % RH (non-condensing) |
| Pressure Range | 300–1100 hPa |
| Accuracy (Temp) | ±0.5 °C (–10 to 50 °C) |
| Accuracy (RH) | ±3 % RH (20–80 % RH) |
| Accuracy (Pressure) | ±1.5 hPa |
| Brand | Davis Instruments (USA) |
|---|---|
| Origin | USA |
| Model | 6382 |
| Channel Count | Multi-channel (up to 8 stations per console) |
| Operating Temperature | –40 °C to +65 °C |
| Storage Temperature | –45 °C to +70 °C |
| RH Range | 1–100% RH |
| RH Accuracy | ±3% (0–90% RH), ±4% (90–100% RH) |
| RH Resolution | 1% RH |
| RH Drift | ≤±2%/year |
| Temperature Range | –40 °C to +65 °C |
| Temp Accuracy | ±0.5 °C |
| Temp Resolution | 0.1 °C |
| Update Interval | 10 s (temp), 50 s (RH) |
| Radio Frequency | 868.0–868.6 MHz |
| Transmit Power | ~8 mW |
| Line-of-Sight Range | up to 300 m |
| Obstructed Range | 60–120 m |
| Battery | CR123 3 V lithium (8-month typical life) |
| Enclosure Material | UV-stabilized PVC |
| Dimensions (Station) | 190 × 216 × 153 mm |
| Weight (Station) | 1.6 kg |
| Data Logging Memory | 128 KB non-volatile |
| Max Stored Records | 2560 |
| Sampling Intervals | 1, 5, 10, 15, 30, 60, or 120 min |
| Console Compatibility | VP2 Console or Envoy Data Logger |
| Brand | NK |
|---|---|
| Origin | USA |
| Model | DROP D2 |
| Channel Count | Multi-Channel |
| IP Rating | IP67 (30-min submersion) |
| Drop Resistance | MIL-STD-810G (1 m drop) |
| Operating Range | –10°C to +55°C (14°F to 131°F) |
| Temp Accuracy | ±0.5°C (±0.9°F) |
| Sensor Type | External-sealed thermistor & humidity sensor with thermal isolation |
| Battery | CR2032 lithium coin cell (up to 4 months typical life) |
| Memory Capacity | >7,000 combined temperature/humidity data points |
| Wireless Protocol | Bluetooth® 4.0 (BLE) |
| Max Bluetooth Range | 100 ft (30 m, line-of-sight) |
| Dimensions | 24 × 46 × 60 mm (1 × 1.8 × 2.4 in) |
| Weight | 34 g (1.2 oz) |
| App Compatibility | Kestrel LiNK for iOS 6+ (iPhone 4s or newer, iPad 3rd gen+, iPod Touch 5th gen+) and Android 4.3+ with Bluetooth Smart® support |
| Brand | NK |
|---|---|
| Origin | USA |
| Model | DROP D3FW |
| Channel Count | Multi-channel |
| Dimensions | 60 × 46 × 24 mm (2.36 × 1.81 × 0.94 in) |
| Mounting | Wall-mountable with integrated D-ring |
| Enclosure Material | Engineering-grade ABS plastic |
| Ingress Protection | IP67 |
| Shock Resistance | MIL-STD-810G compliant |
| Weight | 34 g (1.2 oz) |
| Wireless Range | Up to 30 m (100 ft) line-of-sight via Bluetooth® 4.0+ |
| Logging Interval | Configurable from 2 seconds to 12 hours |
| Memory Capacity | Up to 13,000 data points per parameter |
| Battery Life | Up to 3 months (typical use, 1-min interval) |
| Operating Temperature | –20 °C to 60 °C (–4 °F to 140 °F) |
| Relative Humidity Range | 5–95 %RH (non-condensing) |
| Pressure Range | 300–1100 hPa (mbar) |
| Accuracy (Temp) | ±0.5 °C (±0.9 °F) @ 25 °C |
| Accuracy (RH) | ±3 %RH @ 20–80 %RH |
| Accuracy (Pressure) | ±1.5 hPa |
| 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 | Davis Instruments |
|---|---|
| Origin | USA |
| Model | 6420 |
| Sensor Type | Artificial Leaf Resistive Sensor |
| Excitation Voltage | 3 V (nominal, bipolar) |
| Time Constant | 2 s |
| Cable Length | 12 m |
| Cable Specification | 4-conductor, 26 AWG |
| Connector | Standard RJ-11 |
| Substrate Material | Fiberglass + Ceramic Board |
| Conductive Grid Material | Copper, Nickel, Gold |
| Mounting Bracket | Anodized Aluminum |
| Dimensions (L×W×H) | 102 mm × 58 mm × 58 mm |
| Weight | 0.4 kg |
| Output Range | 0–15 (dimensionless wetness index) |
| Accuracy | ±0.5 units |
| Resolution | 1 unit |
| Data Update Interval | 62.5–75 s |
| Compliance | Designed for outdoor agricultural and ecological monitoring per ASTM E2797-21 (Standard Practice for Measuring Leaf Wetness Duration) |
| Brand | NK |
|---|---|
| Origin | USA |
| Model | DROP D1 |
| Channel Count | Single-Channel |
| IP Rating | IP67 (30-min submersion) |
| Drop Resistance | MIL-STD-810G (1 m drop) |
| Operating Range | –10°C to +55°C (14°F to 131°F) |
| Accuracy | ±0.5°C (±0.9°F) |
| Sensor Type | Externally mounted, thermally isolated precision thermistor |
| Battery | CR2032 lithium coin cell (typical 4-month life) |
| Memory Capacity | >13,000 temperature readings |
| Dimensions | 24 × 46 × 60 mm (1 × 1.8 × 2.4 in) |
| Weight | 34 g (1.2 oz) |
| Wireless Protocol | Bluetooth® Low Energy (BLE) |
| Max Wireless Range | 30 m (100 ft) line-of-sight |
| Data Retrieval | Real-time and historical via Kestrel LiNK mobile app (iOS/Android) |
| Logging Interval | Configurable (down to 2 s) |
| Time Sync | Automatic upon BLE connection |
| Compliance | RoHS, FCC Part 15, IC RSS-247 |
| 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 | Campbell |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | SI-111 |
| Instrument Type | Fixed-Mount Infrared Radiometer |
| Measurement Range | -40 to 70°C |
| Accuracy | ±0.2°C (-10 to 65°C), ±0.5°C (-40 to 70°C) |
| Consistency | ±0.1°C (-10 to 65°C), ±0.3°C (-40 to 70°C) |
| Repeatability | ±0.05°C (-10 to 65°C), ±0.1°C (-40 to 70°C) |
| Spectral Response | 8–14 µm |
| Field of View | 22° half-angle |
| Response Time | <1 s |
| Operating Environment | -55 to 80°C, 0–100% RH |
| Excitation Voltage | 2.5 VDC |
| Thermopile Output | 60 µV/°C (ΔT between target and sensor body) |
| Thermistor Output | 0–2500 mV |
| Signal Channels | One differential (thermopile), one single-ended (thermistor) |
| Dimensions | 2.3 cm (diameter) × 6 cm (length) |
| Weight | 190 g |
| 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) |
| Origin | Imported |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Model | AZ8829 |
| Channel Count | Single-Channel |
| Temperature Range | −40 to 85 °C (−40 to 185 °F) |
| Temp Accuracy | ±0.6 °C (−20 to 50 °C), ±1.2 °C (−40 to −20 °C and 51 to 85 °C) |
| Temp Resolution | 0.1 °C / 0.1 °F |
| RH Range | 0–100% RH |
| RH Accuracy | ±3% RH |
| RH Resolution | 0.1% RH |
| Memory Capacity | 16,000 data sets |
| Sampling Interval | 1 second to 2 hours |
| Display | 4-digit LCD with unit indicators (°C/°F/%RH/AL-H/AL-L) |
| Interface | RS232 (9600 baud), IRDA |
| Power | 3.6 V Li battery (½AA, 1.2 Ah), ~2-year life |
| Dimensions | 80 × 55 × 22 mm |
| Weight | 26 g |
| Enclosure | IP65-rated waterproof and abrasion-resistant housing |
| Alarm | Dual-color LED (red = out-of-limit alert |
| 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 |
| Brand | RainWise |
|---|---|
| Origin | USA |
| Model | TWD |
| Temperature Range | 0–50 °C |
| Accuracy | ±0.15 °C |
| Resolution | 0.10 °C |
| Sensor Type | Precision Thermistor |
| Brand | Airmar |
|---|---|
| Origin | USA |
| Model | HT200 |
| Temperature Range | 0–30°C |
| Accuracy | ±0.3°C |
| Resolution | 0.01°C |
| Response Time | 0.15 s |
| Output Protocol | NMEA 2000® |
| Update Rate | 2 Hz |
| Supply Voltage | 9–50 VDC |
| Current Draw | ≤30 mA |
| Cable Length | 6 m |
| Housing Compatibility | P17, B17, SS577 |
| Mounting Hole Diameter | 51 mm |
| NMEA 2000 LEN | 1 |
| Weight (Bronze) | 1.3 kg |
| Weight (Stainless Steel) | 1.6 kg |
| Brand | Airmar |
|---|---|
| Origin | USA |
| Model | B17-HP |
| Temperature Accuracy | ±0.3°C |
| Temperature Resolution | 0.01°C |
| Response Time Constant | 5 s |
| Operating Temperature Range | 0–30°C |
| Supply Voltage | 6–28 VDC |
| Max Current Draw | 30 mA |
| Output Protocols | NMEA 0183 / NMEA 2000® |
| Output Sentence | YXMTW (NMEA 0183), PGN 130310 (NMEA 2000®) |
| Mounting Hole Diameter | 51 mm |
| Housing Material Options | Bronze, Stainless Steel, Plastic |
| Profile Height | 5 mm |
| Cable Length (Max) | 100 m |
| Weight | 1.3 kg |
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