By Steve Reames
The DistoX2 survey instrument has been key to accurate and efficient cave surveys. It was discontinued at the end of 2019; an electronics project was started to design a replacement. This ongoing project has investigated 19 digital compass MEMS sensors (Micro-Electro Mechanical System) and selected three devices to compare against the sensor used in the DistoX2. A turntable was designed to look into any non-linear behavior. This led to selecting a sensor for future development.
Steve Reames (NSS 25533) is a Colorado caver based in Colorado Springs and has been an NSS member for over 30 years. He was active in the early explorations of Lechuguilla Cave and wrote a book published in 1999. He designed the electronics in the Manley 20 headlamp and is currently surveying and exploring a number of water caves in the White River Plateau.