These hygrometers I use for lash extensions are our best friends. We have one at each of our lash stations so that we can know with certainty what addy will work with the conditions in our environment. Features:
- Large character LCD display hygrometer which is multi-function.
- Highly stable and accurate.
- Temperature unit C/F changeable.
- Temperature range 14-122 F
- Humidity Range 10%RH- 99% RH.
- Display size is 4.0-6.9 inches
- Power type : 3AAA battery