The Grain Gauge level indicator is a simple and reliable device that accurately measures the level of material in your grain bin and silo. Designed with the farmer in mind, the Grain Gauge bin level indicator eliminates the need for climbing and risking your safety. Simply install it along the bin wall at key levels and let it do the work for you. It is easy to read from a distance and glows in the dark. Ships from USA. The Grain Gauge level indicator provides numerous benefits including: Clear visibility: the device glows in the dark for easy visibility at night Easy installation: no bin entry required No electricity required: the Grain Gauge level indicator is a completely mechanical device Low maintenance: once installed, the device requires no maintenance Cost-effective: the Grain Gauge bin level indicator is a proven and cost-effective solution for monitoring grain bin levels