Durable Analog Hygrometer Humidity Meter Mini Power-Free Indoor Outdoor M2

Features:
Brand new and high quality.
This durable analog hygrometer is excellent for use in incubators,
brooders, aviaries and cages.
They are widely used in greenhouses and any other indoor / outdoor areas,
or simply for home use.
An easy to read water resistant unit that is accurate and durable.
Material: Plastic.

Specification:
Humidity Range: 0% - 100%.