Multiple sht20 sensors on Arduino uno rev2

#include <Wire.h>
#include "DFRobot_SHT20.h"

DFRobot_SHT20    sht20;
DFRobot_SHT20    sht21;

void setup()
{
    Serial.begin(9600);
    Wire.begin();
    Serial.println("SHT20 Example!");


}

void loop()
{
    Wire.beginTransmission(0x40);

    sht20.initSHT20;                                  // Init SHT20 Sensor
    delay(100);
    sht20.checkSHT20();                                 // Check SHT20 Sensor
    float humd = sht20.readHumidity();                  // Read Humidity
    float temp = sht20.readTemperature();               // Read Temperature
    
    Wire.endTransmission(); 
    
    Serial.print("Time:");
    Serial.print(millis());
    Serial.print(" Temperature 1 :");
    Serial.print(temp, 1);
    Serial.print("C");
    Serial.print(" Humidity 1 :");
    Serial.print(humd, 1);
    Serial.print("%");
    Serial.println();
    delay(1000);
    
    Wire.beginTransmission(0x60);

    sht21.initSHT20();                                  // Init SHT20 Sensor
    delay(100);
    sht21.checkSHT20();                                 // Check SHT20 Sensor
    float humd2 = sht21.readHumidity();                  // Read Humidity
    float temp2 = sht21.readTemperature();               // Read Temperature

    Wire.endTransmission(); 
    
    Serial.print("Time:");
    Serial.print(millis());
    Serial.print(" Temperature 2 :");
    Serial.print(temp2, 1);
    Serial.print("C");
    Serial.print(" Humidity 2 :");
    Serial.print(humd2, 1);
    Serial.print("%");
    Serial.println();
    delay(1000);
}