1.7" Round Indoor Outdoor Hygrometer No Battery Required Mini Humidity Gauge, Gold 2 Pack

This is a mini round hygrometer with a clear number scale to facilitate real-time monitoring of weather moisture conditions to maintain humidity balance. It is widely used in room, bedroom, office, cars, planting, greenhouses, gardens, courtyards, kitchens, factories, warehouses, etc.

Advantage:
1. The outdoor hygrometer is made of durable metal and plastic, good weather resistance, lightweight, portable and carry around in a pocket, can be used for a long time.
2. The hygrometer is divided into 3 intervals (Very dry: 0%-40%RH, Normal: 40%-70%RH, Humid: 70%-100%RH) to let you know whether you need to take humidification or dehumidification measures.

Instruction:
The humidity monitor does not need manual calibration, no battery, energy saving and environmental protection.

NOTE:
1. Humidity measurement accuracy: ±7%RH
3. Do not place the hygrometer in direct sunlight place and water.