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Honeywell CRIR-E1 User Manual page 5

Commercial carbon dioxide sensor

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Figure 2. Mounting Dimensions (mm) - for reference only
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Honeywell CRIR-E1 User Guide
Table 2. Pinout
PIN
FUNCTION
NUMBER
1
DAC
2
UART_RXD
3
UART_TXD
4
UART_R/T
5
bCAL_in/CAL_in
6
PWM output (See CRIR E1 User Manual)
7
Alarm output
8
GND
9
Vin_(4.5 V to 5.5 V)

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