Haglöf DME 301 Forest Ultrasonic Distance Meter with T4 Transponder

DME 301: Accurate and Efficient Ultrasonic Field Measurement

Measure distances even in dense vegetation at the press of a button. Ideal for forest inventories and surveying tasks.

The DME 301 is the modern evolution of the reliable DME 201, widely used since the 1990s. This new version features advanced electronics, a graphical display, T4 transponder with LED indicators, and innovative functions such as BAF calculation and distance exceedance alerts. Thanks to its ultrasonic technology, the DME 301 provides fast and accurate readings even in densely vegetated environments. It can operate with a T4 transponder or alongside another DME 301 for a variety of applications including forest inventories, layout work, and road construction.

Key Features:

• Accurate ultrasonic measurement even in dense vegetation, with resolution down to 0.01 m.
• BAF mode configurable from 0.0 to 999.9 to determine sample-included trees.
• DIST function alerts when a specific distance is exceeded.
• Compatible with T4 transponder, which includes 6 LED indicators for status and noise levels.
• Field versatility: useful in forestry surveys, plot layout, and construction.
• Compact size and rugged design for easy transport and field durability.

T4 Transponder

The T4 is the new and improved transponder replacing the T3 and all previous transponders. The T4 is equipped with six built-in LEDs that provide essential feedback:

• Instantly know if the T4 is active and responding to your measurement device.
• Identify unwanted noise to ensure accurate readings.
• Enjoy the new features of the T4 housing:
• Extended battery space to fit all brands of 1.5V (AA) batteries.
• Updated electronics for longer product lifespan.

The T4 is fully compatible with older measuring instruments, making it a perfect upgrade for all users. Introducing the T4 transponder—the future standard for all measuring instruments, including Vertex 5, Vertex Laser Geo, and DME...

• Specifications
• In the Box
• Documents

• DME 301
  Battery	1 x 9V alkaline battery
  Power consumption	7 mA
  Operating temperature	-15 °C to +45 °C / 5 °F to 113 °F
  Ultrasonic frequency	25 kHz
  Range	Up to 30 m (98 ft); with 360° adapter: up to 20 m (60 ft)
  Resolution	0.01 m / 0.1 ft
  Accuracy	±1% or better
  BAF factors	Variable from 0.0 to 999.9

  
  

  T4 Transponder
  Size	70 mm diameter (2.8")
  Weight	85 g (3 oz) with battery
  Battery	1 x 1.5V AA battery
  Power consumption	Max 9 mW
  Indicators	6 LEDs for status and noise detection
  Compatibility	Compatible with Vertex 5, Vertex Laser Geo, DME, and earlier models

  
  

  360° Adapter
  Diameter	58 mm (2.3")
  Height	45 mm (1.8")
  Weight	35 g (1.2 oz)

  
  

  Monopod
  Transport length	Part 1: 335 mm (13.2"), Part 2: 320 mm (12.6")
  Length in use	Min: 350 mm (13.8"), Max: 1390 mm (54.7")
  Weight	335 g (11.8 oz)

• • DME 301 unit (1)
  • Included battery (1)
  • T4 Transponder (1)
  • 360° Adapter (1)
  • Two-part monopod (1)
• • Quick Start Guide
  • Quick Start Guide (Swedish)