Criacr FT0423 Digital Hygrometer Thermometer User Manual
- June 14, 2024
- Criacr
Table of Contents
MODEL:FT0423
Wireless Indoor /
Outdoor Thermo-Hygrometer
User Manual
Instructions for operation
Getting Started
Note: To avoid permanent damage, please take note of the battery polarity
before inserting the batteries.
Remote Thermo-Hygrometer Sensor Set Up
Pull down on the battery door to open the battery compartment, as shown in
Figure 1. Insert two fresh AAA batteries (with the negative terminal of the
battery in contact with each spring). Lithium batteries are recommended for
cold weather environments. Slide the top lip of the battery door into the
battery compartment guide and snap the bottom battery door bracket into place.
The LED shown in Figure 1 will light up (visible through the plastic).
Display Console Set Up
Note: To avoid permanent damage, please take note of the battery polarity
before inserting the batteries.
BEFORE inserting the display batteries, change Celsius/Fahrenheit Switches
FIRST (the default is Celsius) as Figure 1 if necessary. If you want to change
the temperature unit when it’s working you need to take out the batteries
first.
Then switch C/F as Figure 1 and re-insert batteries.
Important: You need to change temperature unit (C/F) before the item is
powered on.
Remove the battery door on the
back of the display. Insert two AAA(alkaline or lithium) batteries in the back
of the display console, as shown in Figure 3.
All of the LCD segments will light up for a few seconds to
verify all segments are operating properly. The console will instantly display
indoor temperature and humidity. The outdoor temperature and humidity will
display dashes or –.-, then update on the display within a few minutes.
If the sensor communication is lost, dashes (–.-) will be displayed on the
screen. The Remote sensor search icon will automatically search for the
signal.
Once the signal is reacquired, the remote search icon will turn off, and the
current value will be displayed.
Verify the correct temperature- and humidity unit of measure (°F vs. °C ；%)
are on the display as shown in Figure 4
1.Reception Icon
2.Out temperature unit (°F or °C)
3.Out temperature
4.Out humidity unit(%)
5.Out relative humidity| 6.Indoor humidity unit(%)
7.Indoor relative humidity
8.Indoor temperature unit(°F or °C)
9.Indoor temperature
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Replace the battery door, and fold out the desk stand and place
the console in the upright position. as shown in Figure 5.
Sensor Operation Verification
Verify the humidity/temperature sensors match closely with the console and the sensors are in the same location (about 1-3 meters apart). The sensors should agree within 10% (theaccuracy is ± 5%)/2°C (the accuracy is ± 1°C). Allow about 30 minutes for the sensors to stabilize.
Remote Sensor Installation
It is recommended you mount the remote sensor on a north facing wall, in a
shaded area. Direct sunlight and radiant heat sources will result in
inaccurate temperature readings. Although the sensor is water resistant, it is
best to mount in a well protected area, such as an eve.
Use a screw or nail (not included) to affix the remote sensor to
the wall, as shown in Figure 6.
Best Practices for Wireless Communication
Wireless communication is susceptible to interference, distance, walls and metal barriers. We recommend the following best practices for trouble free wireless communication.
- Electro-Magnetic Interference (EMI). Keep the console severalfeet away from computer monitors and TVs.
- Line of Sight Rating. This device is rated at 100m line of sight (no interference, barriers or walls) but typically you will get 30m maximum under most real-world installations, which include passing through barriers or walls.
- Metal Barriers. Radio frequency will not pass through metal barriers such as aluminum siding. If you have metal siding, align the remote and console through a window to get a clear line of sight.
Specifications
- Line of sight wireless transmission (in open air): 100 meters, 30meters under most conditions
- Update Rate: 60 seconds
- Battery life: Minimum 24 months for base station Minimum 24 months for remote thermometer sensor (use lithium batteries in cold weather climates less than -20 °C) The following table provides specifications for the measured parameters.
| Measurement | Range | Accuracy | Resolution |
|---|---|---|---|
| Indoor Temperature | 0 to 60 ° C | + 1 °C | 0.1 °C |
| Outdoor Temperature | -40 to 60 ° C | + 1 °C | 0.1 °C |
| Indoor Humidity | 10 to 99 °A) | + 5% (only guaranteed between 20 to 90`)/0) |
1%
Outdoor Humidity| 10 to 99%| + 5% (only guaranteed between 20 to 90%)| 1%