Kestrel 3000HS Anemometer Heat Stress Meter

Description

The Kestrel 3000HS Anemometer Heat Stress Meter is an engineered, handheld microclimate measurement system developed for precision environmental evaluation in occupational health and field-testing environments. Built with Original Engineering by Nielsen-Kellerman, this instrument integrates a frictionless sapphire jewel bearing impeller, a fast-response external thermistor, and a precision capacitive relative humidity sensor within a sealed, impact-resistant chassis. Designed to deliver instant thermodynamic monitoring without complex zero-point field adjustments, the unit provides critical baseline metrics for worker safety and HVAC aerodynamic balancing.

TECHNICAL SPECIFICATIONS
Manufacturer: Kestrel / Nielsen-Kellerman
Model: 3000HS
Primary Functions: Wind Speed, Ambient Temperature, Relative Humidity, Heat Stress Index, Dew Point, Wind Chill
Wind Speed Range: 0.6 to 40.0 m/s (1.3 to 89.0 mph, 59 to 7877 ft/min, 2.2 to 144.0 km/h, 1.2 to 77.7 knots)
Wind Speed Resolution: 0.1 m/s (0.1 mph, 1 ft/min, 0.1 km/h, 0.1 knots)
Wind Speed Accuracy: ±3% of reading or ±0.1 m/s (least significant digit)
Temperature Range: -29.0 to 70.0 °C (-20.0 to 158.0 °F)
Temperature Resolution: 0.1 °C (0.1 °F)
Temperature Accuracy: ±0.5 °C (±0.9 °F)
Relative Humidity Range: 5.0 to 95.0% RH (non-condensing)
Relative Humidity Resolution: 0.1% RH
Relative Humidity Accuracy: ±3.0% RH (from 5% to 90% RH at 25.0 °C)
Heat Stress Index Range: 21.1 to 54.4 °C (70.0 to 130.0 °F)
Dew Point Range: -29.0 to 70.0 °C
Wind Chill Range: -45.6 to 10.0 °C
Impeller Diameter: 25 mm (0.98 in), field-replaceable
Impeller Bearings: Precision mounted sapphire jewel bearings
Display: High-contrast reflective LCD with electroluminescent backlight
Environmental Rating: IP67 (submersible to 1 m for 30 minutes, buoyant)
Impact Standard: MIL-STD-810G transit drop-tested (2 m onto concrete)
Operating Temperature: -10.0 to 55.0 °C
Storage Temperature: -30.0 to 60.0 °C
Power Source: 1 x CR2032 coin cell (3V Lithium)
Battery Life: Up to 300 continuous operating hours (45-minute auto power-down)
Dimensions: 122 x 48 x 28 mm
Weight: 65 g (inclusive of battery and slip-on protective hard case)
Compliance: CE Compliant, RoHS, WEEE, NIST-Traceable Calibration Verification

TECHNICAL COMPATIBILITY AND MAINTENANCE
Technical Compatibility is maintained across standard industrial hygiene software frameworks, HVAC air balancing workflows, and OSHA Heat Illness Prevention protocols. The instrument requires zero specialized software integration, offering stand-alone data validation on-site. Long-term operating stability is supported by tool-free, field-replaceable impeller assemblies and factory NIST calibration support, ensuring zero downtime for mechanical sensor wear.

PROCUREMENT AND LEAD TIME
Standard commercial units include a slip-on protective cover, neck lanyard, pre-installed CR2032 coin cell, and a factory Certificate of Conformance. Standard Lead Time for fleet orders and batch industrial shipments is typically 2 to 5 business days, subject to custom NIST recalibration requirements.

CRITICAL APPLICATION SCENARIOS
The Kestrel 3000HS is calibrated for severe industrial scenarios such as foundry work, metal extrusion plants, deep shaft mining, petrochemical turnaround inspections, and HAZMAT containment response. In high-heat processing plants where radiant loads and stagnant airflow create hazardous heat strain conditions, standard ambient thermometer readings are insufficient. The Kestrel 3000HS calculates instantaneous airflow velocity, ambient humidity, and thermal load simultaneously to deliver an accurate Heat Stress Index value. This allows site engineers and safety officers to adjust mechanical ventilation rates, dynamically define work-rest regimens, and verify OSHA heat safety compliance in real time.

Key Attributes
Resolution: 0.1 %RH
Temperature Range: -20 to 158°F (-29.00 to 70.00°C)
Type: Heat Stress Meter
Place of Origin: United States
Material: ABS
Starting Wind Speed: 0.1 m/s
Wind Speed Unit Selection: Ft/min
Model Number: 3000HS
Brand Name: Kestrel
Logo/graphic design: 3D Printing
Ambient Temperature Range: -20 to 158°F (-29.00 to 70.00°C)
Relative Humidity Range: 5 to 95% Non Condensing
Pressure Ranges: 25°C (77°F) 700 to 1100 hPa/mbar
Accuracy: 1.5 hPa/mbar
Temperature accuracy: 0.5°C (0.9°F)
Humidity accuracy: 3.0 %RH

Packaging and Delivery
Selling Units: Single item
Single package size: 22X22X9 cm
Single gross weight: 0.500 kg