This document describes the specifications of a Thermo-Hygrometer Meter 230A product. It has time and alarm clock functions and can measure temperature from -20 to 70 degrees Celsius or -4 to 158 degrees Fahrenheit with an accuracy of ±1 degree Celsius. It also measures humidity from 20% to 90% with an accuracy of ±5% between 40-80% humidity. Additional features include displaying maximum and minimum temperature and humidity readings, 12/24 hour clock, and an error message if the sensor is not working properly.

1. 230A
(产品型号展示优化词： Thermo-Hygrometer Meter 230A)
Features：
Thermo-
Hygrometer
Meter 230A
Specifications:
Time/alarm clock
function
Temperature range:
IN -20 ～ 70 ℃ (-4 ℉
～ 158 ℉ )
OUT -20℃ ～ 70 ℃ (-4
℉～ 158 ℉ )
Temperature accuracy: ±1.0 ℃ (1.8 ℉ )
Temperature resolving power: 0.1 ℃ (0.1 ℉ )
Humidity range: 20% RH ～ 90% RH
Humidity accuracy: ±5%(40% ～ 80%) other ±8%
Temperature reading for and℉ ℃
MAX&MIN Temperature and Humidity memory
12 /24 hours system clock
Automatic examination the Sensor comes amiss the manifestation: --.- or--%℃
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