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Version:V1.0 —— May 2021

AHT20 Data Sheet

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2 Sensor Specifications

Relative Humidity

Table 1. Humidity characteristics table.

Temperature

Table 2. Temperature Characteristic table

.

Figure 2. Typical and maximum error in relative humidity at 25°C

Figure 3. Typical and maximum temperature errors.

Parameter

condition

min

typical

max

unit

resolution

Typical

-

0.024

-

%RH

Accuracy error1

Typical

-

±2

-

%RH

max

See Figure 2

-

%RH

repeatable

-

-

±0.1

-

%RH

hysteresis

-

-

±1

-

%RH

nonlinear

-

-

<0.1

-

%RH

Response time2

τ

63%

-

8

-

s

Scope of work

Extended3

0

-

100

%RH

Prolonged Drift4

-

-

<1

-

%RH /yr

Parameter

condition

min

typical

max

unit

resolution

Typical

-

0.01

-

℃

Accuracy

Error1

Typical

-

±0.3

-

℃

max

See Figure 3

-

℃

repeatable

-

-

±0.1

-

℃

hysteresis

-

-

±0.1

-

℃

Response time6

τ

63%

5

30

S

Scope of work

Extended3

-40

-

85

℃

Prolonged Drift

-

-

<0.1

-

℃

/yr