Unihedron Sky Quality Meter Solar charger

Unihedron Sky Quality Meter Solar charger 

This unit mounts to the sunny side of the SQM-H housing and charges up the 4xAA NiMH batteries (included) so that the SQM-LU-DL can operate throughout the nighttime. It replaces the original SQM-LU-DL battery pack.

The clear plastic bottle keeps rain and snow from the inside.

The smooth round shape reduces the possibility that a passing creature or person will catch on it.

A drainage hole in the bottom allows accumulated moisture to escape.

An open-cell foam insert prevents insects from crawling up inside the container.

Even cloudy days provide sufficient charging to keep the batteries topped up.

At one reading every five minutes, the SQM-LU-DL can hold almost a year's worth of readings without changing batteries.