6ES7136-6DC00-0CA0: This is another analog input module with similar features and capabilities, but with 4 channels instead of 2.
$185.00
IMATIC DP, electronic module ET 200SP, F-DQ 8x24VDC/0.5A PP HF, 15 mm width, up to PL E (ISO 13849) up to SIL 3 (IEC 61508)