Siemens · SIMATIC S7-1200 analog input module
SM 1231 analog input expansion with 4 analog inputs and 12-bit resolution plus sign.
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2 verified buyable offers in this reviewed sample. This is not a market-wide price estimate. Each offer retains its own verification timestamp.
USD 130
EUR 162
Source: https://www.s7automation.com/product/6es7231-4hd32-0xb0/
Reviewed sample: 2 current buyable listings. Snapshot evaluated 2026-09-26T16:07:11+00:00.
Compare condition, included accessories, destination shipping, taxes and seller terms before comparing total cost. No currency conversion or invented market price is applied.
Confirm the 4HD32 four-input model is sufficient; the visually related 4HF32 has eight analog inputs and should not be silently substituted.
Verify each transmitter uses supported voltage/current mode (±10/5/2.5 V or 0/4–20 mA) and request channel test results for the used unit before commissioning.
Compare used-tested condition against factory-new stock. The USD 130 base price is used here; the coupon total is conditional and is not a market price.
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