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Heavy Duty Adjustable Tripod


  • Sturdy mount for eddy covariance systems, ancillary sensors, and enclosures
  • Anodized aluminum with stainless steel hardware for durability and weather resistance
  • Includes cross arm, guy cable kit, earth anchors, lightning rod, grounding hardware, foot stakes, and UV-resistant cable ties
  • Validated to withstand 161 km/h (100 mph) wind gusts when fully loaded1

The 7900-300 Heavy Duty Adjustable Tripod is a sturdy instrument platform for eddy covariance systems, communication antennas, meteorological sensors, and enclosures. It provides mounting heights up to 4 m (13 ft) with individually adjustable legs for deployment on uneven terrain.

Additional cross arms and hardware components are available to mount gas analyzers, radiation sensors, and other sensors to the tripod.



Load capacity: 135 kg (297 lbs)

Base diameter with legs extended: 2.54 m (8 ft 4 inches)

Base diameter with guy cables: 8 m (26 ft 3 inches)

Maximum height: 4 m (13 ft)

Maximum slope: 13.0°

Maximum gust tolerance1: 161 km/h (100 mph)

Upper Mast:

Materials: 2 in Iron Pipe Size Schedule 40 Aluminum Pipe 6061-T6

Outer diameter: 6 cm (2.375 inches)

Cross Arm:

Materials: 1 in Iron Pipe Size Schedule 80 Aluminum Pipe 6061-T6

Outer diameter: 3.3 cm (1.315 inches)

Length: 1.5 m (59 inches)


Accessory Description Part Number
Cross Arm and Mounting Kit An additional cross arm and mounting hardware 7900-330
Analyzer Mounting Kit To mount an LI-7500RS or LI-7200RS analyzer; Includes Crossover Fitting, Swivel Mount and Riser Bar 7900-340
Crossover Fitting To mount an LI-7200RS, LI-7700, WindMaster® or WindMaster® Pro 7900-342
Swivel Mount To mount a sensor to a Riser Bar or a ¾ in Iron Pipe Size (26 mm; 1.05 in Outer Diameter) pipe 7900-344
Radiation Sensor Mount To mount a net radiometer and two light sensors (7900-190 Quantum or 7900-195 Pyranometer) to the cross arm 7900-350

1One hundred sixty-one km/h (100 mph) wind gust lasting 3 seconds with a total instrument load up to 297 lbs (135 kg) and a maximum surface area of 0.38 m2 (4.1 ft2) on the cross arm and 1.81 m2 (19.48 ft2) on the legs and masts.

Solar Power Systems

LI-COR solar power supplies are robust power sources developed to our specifications by SunWize® Technologies. Each system conforms to rigorous standards to ensure it will provide reliable power to your instruments in remote field deployments.

  • Complete systems are delivered ready for deployment
  • Designed to provide 4 dark-days of operation with LI-COR eddy covariance systems
  • High wattage output to provide continuous power and prevent data loss
  • 24-volt systems to distribute power with greater efficiency than 12-volt systems
  • UL and CE certified, demonstrating safety and performance compliance

Which solar power system is right for you?

Systems are available in 25, 40, 50, and 65 watt in configurations for locations with 1.5 or more sun hours. Contact a sales representative to determine which system is best for your instrument setup and location.

Each system includes:

  • Solar Panel Array
  • Lead-acid Batteries
  • Vented Enclosure
  • Charge Controller
  • Power Distribution Box
  • Solar Panel Power Cables
  • Solar Panel Mounting Hardware
  • Assembly Hardware
  • Instruction Manual

Power Distribution Box

Power Distribution Box

The 7900-231 Regulated Power Distribution Box is ideal for any LI-COR 24-volt solar power supply. It connects directly to the power supply and provides six unregulated outputs with power output equal to power supplied and two regulated 12-volt outputs.

The 7900-230 Power Distribution Box is ideal for a 12-volt power supply. It connects directly to the solar power supply and provides 11 connections for powered sensors, with the power output equal to the power supplied.

Power distribution boxes and cables are available separately or in combination with LI-COR solar power supplies. A 20-meter cable in aluminum conduit is used to carry power from the solar power supply to the box. A 40-meter extension cable without conduit is used for tower installations.

Biomet Backup Battery

Biomet Backup Battery System

A recommended 12V backup battery system enables the biomet system to continue operating for 2 to 3 days if the primary power supply fails.

Learn More


  • Operating Temperature Range: -15 to 50 °C (5 to 122 °F)
  • RH Range: <100% (non-condensing)
  • Maximum Altitude: 3000 m (9843 ft)
  • Maximum Sustained Wind Speed: 177 kph (110 mph)
  • 20 or 40 meter cable power cables
  • Power Supply Outputs:
    • 7900-231: 6 unregulated (8 amps maximum); 2 regulated (2 amps maximum)
    • 7900-230: 11 unregulated (10 amps maximum)