Awesome caving and speleology resources. Add new suggestions in Issues or ready entries in Pull Requests.

• #therion-general:matrix.org
• #cave-surveying:matrix.org
• #cave-comms:nitro.chat
• #cave-rigging:nitro.chat
• #cave-rigging:nitro.chat

Data collection:

• BRIC BRIC5
• DistoX2 discontinued
• Disto XBLE, DistoX2 redesigned by Siwei Tian (China)
• SAP (Shetland Attack Pony)
• Cave Sniper
• CavWay X1

LIDAR:

• Caveatron
• Poor Man's Laser Scanner (PMLS) continuous scanning firmware for DistoX2, discontinued
• Prometheus, upcoming
• Mandeye, DIY Lidar design for cave mapping

Muon tomography:

• Ideon Reveal, commercial muon tomography for underground surveys
• CosmicWatch, open-source low-cost underground muon detector

GNSS:

Software and hardware for precise (<1 m) object location:

• Location fixing for cave surveys: How to obtain a fixed point for a cave survey tutorial on the challenges of precise cave entrance location
• Trimble Catalyst used Trimble DA1 can be purchased at reasonable prices
• ArduSimple RTK Calibrated Surveyor Kit

Mobile apps used underground for data collection and sketching:

• Qave, Android
• SexyTopo, Android, open-source
• TopoDroidX, Android, do not install app from Google Play Store as it's outdated

Cave survey data management and sketching apps:

• Compass, Windows
• GHTopo, Windows, Linux, open-source
• Survex, Windows, Linux, open-source
• Therion, Windows, Linux, open-source
  • Mapiah, new GUI for Therion
• Tunnel, Java, open-source
• Walls, Windows

• CaveWhere, Windows, MacOS, Linux, open-source - visualise cave surveys as 3D models
• TerrainTool, Java, open-source create surface topographic data for the cave survey packages Survex and Therion

Computing 3D models and cave surveys from cave videos.

• Photogrammetry for 3D Mapping of Caves tutorial
• 3D Cave Surveys
• micmac photogrammetry software

There's plenty of headlamps on the market, so only lighting designed or suitable for caving is listed here:

• Earth Worm
• ElSpeleo
• Fenix HM series
• Little Monkey
• MidiLED
• Petzl Duo series
• Scurion
• StenLight
• Zebra Lights US only

Please read Through-the-earth mine communications first for introduction to cave comms. Only operational systems are listed

• HeyPhone, through-the-earth at 87 kHz (United Kingdom)
• Systeme Nicola, through-the-earth at 87 kHz (France)
• CaveLink, through-the-earth at 20-140 kHz (Switzerland)
• Sybet, relay-based, proprietary protocol at 868 MHz (Poland)
• Vangelis, relay-based on open-source Meshtastic protocol and LoRa hardware (GCRG, United Kingdom)
  • MeshoCan, Vangelis extension by ESOCAN (Spain)
  • Flamingo, Vangelis extension by Huntsville Cave Rescue Unit (HCRU, Alabama), including RS485 serial cable link
• Persefon, single-wire underground telephone (Poland)

Reading:

• ECRA Communications Catalogue from European Cave Rescue Group (ECRA), listing deprecated and current cave communication systems
• CREG Journal (British Caving Research Association: The Cave Radio & Electronics Group, requires subscription)