YJJ Kestrel 5500 Handheld Weather Meter NK5500 Portable Anemometer Kestrel 5500 Link

Product Description:

YJJ Kestrel 5500 Handheld Weather Meter NK5500 Portable Anemometer Kestrel 5500 Link

Features:

I. Product Positioning

The NK Kestrel 5500 flagship pocket weather station from the United States is a fully functional environmental monitoring handheld device that integrates a rotor wind speed sensor, high-precision temperature and humidity sensors, MEMS atmospheric pressure sensor, built-in data storage + Bluetooth wireless transmission, supports custom meteorological algorithms, IP67 waterproof and shock-resistant, and is a professional-level portable weather equipment for surveying, ballistic , wind power, firefighting, agriculture, and scientific research.

II. Core Parameters Measured in All Dimensions (25°C / Standard Atmospheric Pressure)

1. Wind Field Measurement (Rotor detachable)

Wind speed range: 0.6–40 m/s (2.2–144 km/h / 1.3–89 knots / 2–90 mph)

Wind speed accuracy: ±0.3 m/s or reading ±3% (take the larger value), resolution 0.1 m/s

Wind direction option: With wind direction marker accessory, it can measure 0–360° wind direction, accuracy ±5°

Derived calculations: Real-time wind speed, peak gust, wind chill index (low-temperature wind-chill perceived temperature)

2. Temperature and Humidity Module

Temperature: -45°C to +60°C, accuracy ±0.5°C, resolution 0.1°C

Relative humidity RH: 5% to 95% RH, 20–80% RH range accuracy ±2% RH, resolution 0.1% RH

Automatic calculation: Dew point temperature, wet bulb temperature, high-temperature heat index (heat stroke risk warning), absolute humidity

3. Atmospheric Pressure and Altitude

Static pressure range: 600–1100 hPa, accuracy ±0.8 hPa, resolution 0.1 hPa

Functions: Relative altitude, absolute altitude, 24-hour trend curve of atmospheric pressure, sea level pressure conversion

4. Built-in Professional Calculation Function (Unique to 5500)

Ballistic trajectory correction: Automatic correction of ballistic wind deviation based on atmospheric pressure / temperature / humidity ( hunting purposes)

Evaporation transpiration ET: Reference for agricultural pest control, garden irrigation

Flame spread index: Fire situation prediction in forest firefighting

Heat stress index WBGT: Risk classification for heat stroke among outdoor workers

Density height: Safety calculation for paragliding, drones, aircraft take-off and landing

Comprehensive body sensation parameters including water vapor pressure, frost point, wind chill / heat index

III. Electrical, Hardware and Communication Specifications

Power supply: Single AA 5-cell battery, continuous operation 500 hours; low battery prompt window

Screen: Color backlit LCD, suitable for strong light / dark night, display of colorful weather icons

Storage: Built-in 4000 complete meteorological data records, with timestamp, can store data from different measurement points in groups

Wireless transmission: Bluetooth 4.2 low power consumption, direct connection to Kestrel Link APP, real-time synchronization, export CSV data, generate weather curves, remote viewing of historical records

Protection: Entire machine IP67 waterproof and dustproof, short-term 1-meter water immersion; shock-resistant ABS body, standard hard protective storage case

Rotor: Six-blade detachable rotor, can be replaced when blocked by dust, low maintenance cost

Size and weight: 130×48×28mm, net weight approximately 95g (excluding battery)

Standard accessories: Portable hanging rope, original calibration certificate, protective hard case; optional external wind direction marker, tripod base

IV. Core Working Principle

Wind speed collection: Open-top rotor at the top rotates with the airflow, photoelectric sensor counts and converts real-time wind speed and peak gust;

Temperature and humidity: Side ventilation sensor chamber, collects environmental temperature and humidity through natural ventilation, without interference from direct sunlight;

Atmospheric pressure and altitude: High-precision MEMS pressure chip collects atmospheric pressure in real time, algorithm converts altitude and pressure change trend; The main control chip integrates all sensor data, has dozens of industry-specific meteorological algorithms built-in, automatically calculates derived parameters, stores them locally, and synchronizes them wirelessly to the mobile phone via Bluetooth.

V. Specialized Industry Applications

1. Long-distance / hunting (core professional scenario)

Automatically calculates ballistic wind deviation correction, synchronizes wind speed, air pressure, temperature humidity, and density altitude, precisely corrects bullet deviation, standard equipment for competitions and outdoor hunting.

2. Wind power, electricity, high-altitude engineering

Wind turbine inspection, transmission tower / tower crane high-altitude operations: Real-time monitoring of peak gust wind, determining the safety threshold for wind stoppage; records on-site meteorological data for archiving.

3. Forest fire fighting, emergency rescue

Calculate flame spread index, WBGT heat stress index; monitor wind speed, temperature humidity, dew point around the fire site, predict the direction of fire spread, protect rescue personnel from the risk of heatstroke.

4. Agricultural pest control, garden planting

Pesticide spraying: Monitor wind speed to avoid drift pollution;

Calculate ET evaporation transpiration volume, guide farmland, greenhouse irrigation;

Record field temperature humidity, dew point, prevent crop diseases.

5. Surveying, geology, meteorological research

Field geological exploration, topographic mapping, small-scale meteorological station inspection; university geography / environment professional field experiments, data can be exported via Bluetooth for report preparation.

6. Aviation, gliding, outdoor sports

Paragliding, powered parachute, drone operations: Calculate density altitude, determine take-off and landing safety; monitor meteorological conditions for sailing, mountain climbing, marathon events.

7. Industrial blasting, construction

Open-pit mine blasting site monitoring of wind speed, controlling dust dispersion; real-time meteorological safety monitoring of outdoor construction sites, scaffolding.

Six. Core Advantages of Kestrel 5500 Compared to 3000/3500

Full-color display: 3000/3500 are monochrome screens, 5500 has more intuitive colorful icons;

Complete professional algorithms for WBGT heat stress, ballistic, ET evaporation volume, flame index (3000 has no storage or Bluetooth, 3500 lacks professional industry calculation);

Greater storage: 4000 sets of data with timestamps, 3500 has only 1000 sets;

High-speed Bluetooth 4.2 wireless, APP provides complete data analysis and curve export;

Higher pressure, humidity measurement accuracy, suitable for high-precision surveying and scenarios.

Specifications: