The Apogee AT-100 microCache is a compact Bluetooth micro logger that powers and reads a single Apogee sensor and stores measurements for download to a smartphone using the free ApogeeConnect app.With a 24-bit analog-to-digital converter and storage for up to 400,000 data points, the microCache turns any analog Apogee sensor into a standalone, wireless logging station for spot studies and remote monitoring.Key Features Stores up to 400,000 data points 24-bit ADC for high-resolution measurements Bluetooth download via free ApogeeConnect app Powers and reads one Apogee analog sensor Built and calibrated in Logan, Utah; NIST-traceable, made in the USA, and backed by an industry-leading 4-year warranty. Why Choose This ModelThe microCache is the easiest way to log any Apogee sensor wirelessly without wiring into a larger datalogger or controller.Ideal Applications Standalone wireless sensor logging Spot studies and audits Remote PAR, climate, or CO2 monitoring