Humidity Meter Gauge 72mm and Hygrometer No Battery Needed for Home
7.2cm Gold Hygrometer Humidity Meter Gauge No battery needed

Descriptions:
Material:Aluminum alloy outer plastic bottom for case, arched plastic lens, golden aluminum dial, metal hands.
It can be used on a variety of labor day panels.
The back of the product is equipped with a PE elastic for product for head inlay.
No battery needed (Mechanical Gauge)

Specifications:
Product size: D72*TH34MM
Measuring
Measurement accuracy: +/-7%RH (40~70%RH)

Package include:
1 * Hygrometer
1 * PE Elastic