EXTECH SDL300: Metal Vane Thermo-Anemometer/Datalogger

EXTECH SDL300: Metal Vane Thermo-Anemometer/Datalogger

Extech SDL300 Metal Vane Thermo-Anemometer/Datalogger

Rugged, High-Temperature Anemometer with SD Card Data Logging

The Extech SDL300 is a high-performance metal vane thermo-anemometer designed for measuring air velocity and temperature in demanding environments. Its durable metal vane allows it to withstand temperatures up to 158 °F (70 °C) and airflows up to 6900 ft/min, making it ideal for industrial HVAC systems, ventilation audits, and environmental testing.

With its built-in SD card datalogger, the SDL300 captures time-stamped measurements directly in Excel-compatible format for seamless transfer to a PC. It supports Type K and J thermocouples for high-temperature applications and offers precision readings on a large 9999-count LCD display. The instrument comes complete with batteries, sensor, and hard case for field use.

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Key Features EXTECH SDL300: Metal Vane Thermo-Anemometer/Datalogger 

• Measures air velocity up to 6900 ft/min (35 m/s) with ±2% accuracy

• Operates in high-temperature environments up to 158 °F (70 °C) using a metal vane sensor

• Data logger stores readings with time/date stamps in Excel format on an SD card

• Adjustable sampling rate from 1 to 3600 seconds

• Stores 99 manual readings and up to 20 million readings with a 2GB SD card

• Supports Type K/J thermocouples for expanded temperature measurements

• Large 9999-count LCD simultaneously displays air velocity and temperature

• Low-friction ball bearing vane wheel with 3.9 ft (1.2 m) cable ensures high accuracy

• Features MIN/MAX recall, data hold, and auto power off with disable option

• Complete with 6 × AA batteries, SD card, metal vane sensor, and carrying case

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Technical Specifications

• Air Velocity Range:

  • 60 to 6900 ft/min

  • 0.4 to 35 m/s

  • 1.0 to 126.0 km/h

  • 0.6 to 68 knots

  • 0.7 to 78.2 mph

• Air Velocity Accuracy: ±2% of reading

• Air Velocity Resolution: 1 ft/min / 0.1 unit (other units)

• Air Temperature Range: 32 to 158 °F (0 to 70 °C)

• Air Temperature Accuracy: ±1.5 °F / 0.8 °C (under 60 °C)

• Air Temperature Resolution: 0.1 °

• Thermocouple Compatibility: Type K, J, N

• Thermocouple Range:

  • Type J: -148 to 2192 °F (-100 to 1200 °C)

  • Type K: -148 to 2372 °F (-100 to 1300 °C)

  • Type N: Accuracy ±(0.4% + 1.8 °F / 1 °C)

• Memory: 2GB SD card for up to 20 million data points

• Power Source: 6 × AA (1.5V) batteries

• Certifications: CE

• Dimensions: 7.2 × 2.9 × 1.9 inches (182 × 73 × 47.5 mm)

• Weight: 17.2 oz (487 g)

• Warranty: 3 years

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Summary

The Extech SDL300 is a robust and versatile anemometer that combines metal vane durability with precise airflow and temperature measurements. Its high-temperature handling, advanced data logging, and broad velocity range make it a perfect tool for professionals working in harsh or high-flow environments. Ideal for technicians, engineers, and industrial inspectors seeking reliable data and reporting efficiency.