Mieo® Digital Hygrometer Thermometer with Calibration and Touch Memory Checking Button as a Recorder for Humidor/Wine Cooler/Pet House or Instrument Case SH104MT with Clock

±3%RH (30%~80%RH), ±5%RH for beyond (30%~80%RH)
11) Product Size:D2.36*H0.63 inches
12) Product Tail Diameter: 2.27 inches
13) Mount Hole Diameter: Between 2.36 inches and 2.27 inches
Packing list: One hygrometer with one cell battery preloaded,one adhesive metal plate and one manual.
FAQ:
1) "No working, ï½—hy??"
MIEO: The design theory of touch button is resistance change. The TOUCH button is a resistance sensor indeed. The software will detect the initial surrounding resistance and memorize the initial data once power is on. Don't close the touch button when load battery.
So, you may try below to recover this problem.
---Take off the battery.
---Don't close the touch button while reload the battery.
---Load the battery correctly (obey the below direction).
There are Positive and Negative pins. Let the Positive pin contacts with battery "+", and the Negative contacts with battery "-".
Don't place both of the Positive and Negative pins under the battery to touch battery "-". Please obey the direction in the manual.