TA218A Household thermometer Portable electronic thermohygrometer, Temperature Humidity Meter.
 
A digital hygrometer, also known as thermohygrometer, measures and simultaneously displays temperature and humidity measurements.
 
The TA218A is a digital thermo-hygrometer (temperature and humidity meter) featuring a clock, calendar, and Max/Min memory functions, commonly used for indoor/outdoor environmental monitoring. It has a ~1.5m probe, a wide to or  temperature range, and operates on a 1.5V AAA battery.
 
Product Description
TA218A Digital Hygrometer and thermometer with clock  
Temperature range: 0ºC~50ºC   32ºF~122ºF  ,
Resolution: 0.1ºC   Accuracy: 1ºC
Humidity Range: 10%RH~98%RH            
Accuracy: 60%±5%
Celsius Fahrenheit Conversion: ºC/ºF,
MAX/MIN button: Display the maximum / minimum,
Temperature or remove humidity , the maximum /minimum/temperature humidity records
In the normal state, according to MAX/MIN key to switch showed the largest, minimum, value of the current temperature and humidity. In the MAX or MIN displays status, no buttons automatically after 8 seconds to return the current temperature and humidity display. The maximum/minimum temperature recorded humidity removal, in the MAX or MIN of the state , hold down the MAX/MIN button 2 seconds clear of the show the highest/ most low humidity, and return the current temperature and humidity display.
RESET button : clear reset.,
Fix the unit on a wall or place on desktop.
Product use one (1.5V) AAA batteries. Font fuzzy, please replace the battery, and Attention to environmental protection.,
*C  model with 1.5-meter temperature and humidity sensing line  Calendar display range: January 1, 2000 ~ December 31, 2049; Time display 12/24 hour clock. Switch Date / Time / weeks / sec display.