Veinasa-DHT11 DHT11 Digital Arduino DHT11 Temperature and Humidity Sensor Module Temperature Sensor RS485Module DHT11 for Humidifier
Product Description
The Veinasa-DHT11 is a temperature and humidity sensor module with calibrated digital output. It uses high molecular humidity resistor as sensing element, which is converted into digital signal output after collection and processing by MCU.
It has the characteristics of long-term stability, high reliability, high precision and low power consumption. Free from interference such as power supply noise and voltage fluctuations.
Product Parameters
Table 1: Relative humidity
Parameter |
Conditions |
Minimum |
Typical |
Maximum |
Unit |
Resolution |
|
|
1 |
|
%RH |
Measuring range |
|
20 |
|
95 |
%RH |
Precision |
25ºC |
±5 |
±3 |
±5 |
%RH |
Repeatability |
|
|
±0.1 |
|
|
Response time |
1/e(63%) |
|
< 8 |
|
S |
Retardation |
|
|
±0.5 |
|
%RH |
Drift |
Typical value |
|
< 3 |
|
%RH/y |
Table 2 Temperature
Parameter |
Conditions |
Minimum |
Typical |
Maximum |
Unit |
Resolution |
|
|
0.1 |
|
ºC |
Measuring range |
|
-20 |
|
60 |
ºC |
Precision |
|
|
±0.5 |
|
ºC |
Repeatability |
|
|
±0.2 |
|
ºC |
Response time |
1/e(63%) |
1 |
|
|
S |
Retardation |
|
|
±0.1 |
|
|
Drift |
Typical value |
|
< 0.2 |
|
ºC/y |
Electrical characteristics
Parameter |
Conditions |
Minimum |
Typical |
Maximum |
Unit |
Supply voltage VDD |
|
3.0 |
5 |
5.5 |
V |
Supply current |
Sleep mode |
|
0.6 |
2 |
uA |
Measurement mode |
|
2.0 |
2.5 |
mA |
Sampling period |
|
|
2.0 |
|
S |
Low output voltage |
Io<4mA |
0 |
|
250 |
mV |
High level output voltage |
The Rp < 25 k Ω |
80% |
|
100% |
VDD |
Low-level input voltage |
Falling edge |
0% |
|
20% |
VDD |
High level input voltage |
Rising edge |
80% |
|
100% |
VDD |
Output current |
On |
|
|
4 |
mA |
Three-state gate (Off) |
|
10 |
20 |
μA |
Table 3: Io represents low level output current Rp represents pull-up resistance
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