The Analog Dial Indoor Outdoor Hygrometer & Thermometer tracks ambient temperature and relative humidity without requiring an external power source. It covers a range of -30°C to 50°C and 0% to 100% humidity using mechanical sensors. Mounting on walls provides consistent environmental monitoring in greenhouses or warehouses.
Key Features
- Mechanical 2-in-1 Sensor: Monitors temperature and relative humidity simultaneously through physical expansion principles. Operates without interruption during local load shedding.
- Battery-free Operation: Uses internal mechanical coils to respond to ambient air changes. Eliminates maintenance costs and battery waste.
- 100mm High-Contrast Dial: Displays readings on a large circular interface with distinct markers. Visibility remains clear from a distance.
- Physical Accuracy Standards: Maintains ±1°C temperature and ±5% RH humidity precision levels. Mechanical parts resist electronic sensor drift.
Frequently Asked Questions
How to calibrate analog hygrometer?
Wrap the meter in a damp cloth for 30 minutes to simulate 95% humidity. Turn the rear adjustment screw until the needle hits the 95% mark.
Does analog hygrometer need battery?
This mechanical meter operates without any electrical power or battery cells. It relies on the physical expansion and contraction of internal components.
