Baby Hazel Lee hygrometer indoor household thermometer hygrometer precision battery-free precision meter blue

Baby Hazel Lee hygrometer indoor household thermometer hygrometer precision battery-free precision meter blue

Product description:

Product parameters:

  • Brand: GEMlead / Hazel Lee
  • Model: TH101B
  • Product Number: TH101B

Mechanical thermometer thermometer placed in an environmental sensing automatically after a few minutes without adjustment for Free batteries environmentally friendly and durable

Tips ~!

(Ten million open sealed packages of goods received, due to the impact of air sealed packaging, there will be some differences in value, then the indoor place 1-2 hours can be a normal measure temperature and humidity!)

Thermometer errors (thermometer can display temperature of air conditioning as a reference because it is the outlet temperature when the heating / air conditioning circulated into the room when the temperature is not so high / low also affected by the impact of outdoor display of)

Brand: GEMlead / Hazel Lee

Model: TH101B indoor hygrometer (blue box)

Dimensions: Diameter 12.9CM * 2.8CM thickness

Weight: 0.2KG / a

Relationship between daily life and the temperature and humidity

When the indoor environment:

Temperature 18 to 25 degrees Celsius, relative humidity at 40 to 70%, the body feels comfortable

When the temperature is 24 to 30 degrees Celsius, relative less than 60%, the body feels hot but not stuffy

At temperatures above 30 degrees Celsius, humidity greater than 70%, the body feels hot

At temperatures above 36 degrees Celsius, humidity is greater than 80%, the body feels hot and unbearable, sweating mechanism is blocked, easy to heat stroke.


It can be widely used to measure room, offices, workshops, laboratories, schools, shopping malls, warehouses and other environmental temperature and humidity.

Product parameters:

Temperature range: -30 degrees Celsius to 50 degrees Celsius

Temperature error: plus or minus 1 degree Celsius (error range is within 2 degrees Celsius)

Humidity error: ± 5% (within an error range of 10%)

In general, as the temperature and humidity conditions are normal deviations You buy one hundred thermometer temperature and humidity are certainly some differences emerged, bumpy road back and forth together with your local temperature and humidity differences, I believe we can understand. Received the goods when a little pat lay, or use a small a bowl of hot smoked what you will adjust back to normal.

common problem:

1, buy a new hygrometer need to adjust it?

* This product is adjusted at the factory have been strictly accurate, and under normal circumstances do not need to re-adjust to normal use, but may be due to transport vibration reasons, so that the deviation of the reading, the displayed reading if there is doubt, and shown effective within the range of error is greater than the value of technical indicator values ​​can be observed in the absence of environmental control reference small wind together (after about 30 minutes, the longer accurate), were confirmed after adjustment.

2, how to adjust the hygrometer (table)?
* Will a wet towel to cover the entire back of the hygrometer or wrap for about 30 minutes at which time the humidity hygrometer should display a reading of 95% RH. As hands do not point to 95% RH, please use a suitable size of a font screwdriver, on the back of the corresponding humidity adjustment holes left rotation was adjusted to 95% RH until the pointer points.

3, how to adjust the thermometer (table)?
* Use an accurate thermometer confirmed as a reference, using a suitable size a flat-blade screwdriver at the back of the corresponding temperature is adjusted to adjust the rotation around the hole pointer reading agreement so far.

4, hygrometer use should pay attention to what things?

* Hygrometer should hang ventilated place, avoid racking wall in direct sunlight, the air conditioner outlet and other places.
* Hygrometer shall install in corrosive atmospheres.

5, Analog hygrometer temperature measurement principle?

Dial thermometers using two different metals at different temperatures change the degree of expansion of the principle. The main component is laminated with a metal sheet with two or more multi-layered film composed of the metal. In order to improve temperature sensitivity , usually made of sheet metal spiral shape. when the temperature changes multilayer metal sheet layers of metal expansion or contraction, ranging from making the spiral rolls or loose. Since the end of the spiral coil is fixed and the other end a freely rotatable pointer connected, therefore, when the bimetal feel the change in temperature, a pointer to the circular indexing scale indicates the temperature.