Kestrel 5700 Elite Ballistics Weather Meter
| Brand | NK |
|---|---|
| Origin | USA |
| Model | Kestrel 5700 Elite |
| Instrument Type | Handheld Weather Station |
| Power Source | Single AA Battery |
| IP Rating | IP67 (Dustproof & Waterproof) |
| Display | High-Resolution Backlit LCD with Dual-Color Illumination |
| Data Storage | >10,000 Time-Stamped Records |
| Wireless Connectivity | Optional Kestrel LiNK Bluetooth (iOS/Android) |
| PC Connectivity | Kestrel LiNK Dongle or USB Cable (sold separately) |
| Environmental Measurement Range | Wind Speed (0.1–130.0 kt), Temperature (−20.0 to 60.0 °C), Relative Humidity (5–95% RH, non-condensing), Barometric Pressure (300–1100 hPa), Altitude (0–12,000 m), Dew Point (−40.0 to 50.0 °C), Density Altitude (−500 to 12,000 m) |
Overview
The Kestrel 5700 Elite Ballistics Weather Meter is a rugged, field-deployable environmental measurement and ballistic calculation platform engineered for precision long-range shooting applications. Unlike general-purpose weather meters, the 5700 Elite integrates real-time atmospheric sensing with an embedded ballistics solver grounded in applied aerodynamics and external ballistics theory. It measures critical environmental parameters—including wind vector components (headwind/tailwind, crosswind), temperature, humidity, barometric pressure, and density altitude—and feeds them directly into a customizable drag model library supporting G1, G7, custom Doppler-derived BC tables, and manufacturer-specific ballistic coefficients. The device applies corrections for spin drift, Coriolis effect, vertical drop decomposition, and transonic transition behavior—enabling accurate trajectory prediction across supersonic, transonic, and subsonic flight regimes. Its architecture adheres to MIL-STD-810G environmental durability standards, with an IP67-rated polycarbonate housing and scratch-resistant optical glass display.
Key Features
- Ruggedized handheld design with IP67 ingress protection—tested for dust immersion, water submersion up to 1 m for 30 min, and mechanical shock resistance.
- Dual-color (red/green) adjustable backlight for low-light and night-vision-compatible operation.
- High-resolution graphical LCD optimized for rapid parameter scanning under variable ambient lighting conditions.
- Onboard storage capacity exceeding 10,000 time-stamped environmental records with automatic timestamping and user-defined logging intervals.
- Support for up to 16 firearm/load configurations and 5 distinct target profiles, each retaining full ballistic solution history.
- Integrated wind vector analysis: simultaneous real-time display of true wind speed/direction, crosswind component, headwind/tailwind magnitude, and wind hold value in mils/MOA.
- Comprehensive environmental suite: dew point, wet-bulb temperature, heat index, wind chill, density altitude, and station pressure—all traceable to NIST-calibrated sensors.
Sample Compatibility & Compliance
The Kestrel 5700 Elite is designed for direct field use across diverse operational environments—from arid desert ranges to high-humidity coastal zones and alpine elevations. Its sensor suite complies with ASTM D5028-17 (standard practice for measuring atmospheric pressure), ISO 7726:2001 (ergonomics of thermal environments), and IEC 60529 (IP rating standard). While not certified for clinical or regulatory-grade metrology, its environmental measurements meet typical requirements for military field calibration (MIL-STD-461E EMI/EMC), GLP-aligned data integrity (audit-trail-capable via Kestrel LiNK software export), and ISO/IEC 17025-supporting laboratory auxiliary use. Firmware updates maintain alignment with evolving ballistic modeling conventions (e.g., updated G7 reference curves per SAAMI RP-11).
Software & Data Management
Data acquisition and post-processing are supported through the Kestrel LiNK desktop application (Windows/macOS) and mobile app (iOS/Android), both enabling encrypted wireless synchronization via Bluetooth Smart (BLE 4.0+). Export formats include CSV, PDF report templates, and Kestrel-specific .kst files compatible with third-party ballistic platforms such as Applied Ballistics Mobile and Strelok Pro. All logged datasets retain full metadata: UTC timestamps, GPS-assisted location tags (when paired with external GNSS modules), sensor serial numbers, and firmware revision identifiers—facilitating traceability in training documentation, after-action reviews, or QA/QC reporting. The desktop software supports batch processing, statistical trend analysis, and overlay plotting of multiple environmental variables against time or elevation.
Applications
- Military sniping and long-range marksmanship training—used by U.S. SOCOM units and allied special operations forces for dynamic environmental compensation in contested terrain.
- Hunting and competitive precision rifle disciplines (e.g., PRS, NRL, F-Class), where density altitude and wind gradient profiling directly impact first-round hit probability.
- Ballistic research and ammunition development—providing field-validated environmental inputs for Doppler radar correlation studies and custom drag coefficient derivation.
- Environmental monitoring in remote field deployments where power infrastructure is unavailable; operates continuously for >24 hours on a single AA alkaline cell.
- Academic instruction in applied physics and atmospheric science, serving as a portable platform for teaching real-world relationships between thermodynamic state variables and projectile kinematics.
FAQ
Does the Kestrel 5700 Elite require annual recalibration?
No scheduled recalibration is mandated by NK; however, users performing mission-critical applications are advised to perform verification checks against NIST-traceable reference instruments every 12 months or after severe mechanical impact.
Can the device calculate trajectories for airgun pellets or shotgun loads?
Yes—the custom drag model interface accepts user-defined BC tables and velocity-dependent drag functions, enabling modeling for non-rifled projectiles when appropriate ballistic coefficients and muzzle velocity data are supplied.
Is the internal barometer compensated for altitude-induced pressure drift during extended climbs?
Yes—the unit applies real-time static pressure compensation using onboard temperature and humidity readings per the International Standard Atmosphere (ISA) model, ensuring consistent density altitude output across elevation changes.
What level of Bluetooth security does Kestrel LiNK implement?
Kestrel LiNK employs AES-128 encryption for all BLE data packets and enforces secure pairing protocols compliant with Bluetooth SIG Core Specification v4.2+, preventing unauthorized data interception or device spoofing.
Are firmware updates backward-compatible with legacy Kestrel 5000-series accessories?
Yes—firmware revisions maintain hardware-level compatibility with all Kestrel LiNK Dongles, USB cables, and mounting kits released since 2015, ensuring seamless integration across multi-generation fleet deployments.
