Halyard

A weatherproof handheld logger for field environmental data (temperature, humidity, pressure, particulates), built around a low-power sensor stack and a sunlight-readable display. The enclosure is a two-part machined shell with a single gasket line and no visible fasteners on the front face.

Designed for one-handed operation with gloves on: three tactile keys, a detented rotary, and a status ring that reads at a glance from across a site.