Limit Switch Selection Guide

Answer a few quick questions and we'll recommend the right reed switch option for your RCM Flo-Gage — including intrinsic safety approval if needed.

Question 1 of 4

How many flow setpoints do you need?

A setpoint is a trip point where the switch activates — e.g. "shut off pump if flow drops below X" is one setpoint. "Alarm on low flow AND alarm on high flow" requires two.

-1S2

Single SPDT reed switch, 30–90% F.S.

-2S2

Dual SPDT reed switches, independent setpoints

-IS / -LED

Intrinsic safety approval, CSA/ATEX, Zone 0

Not sure? Call our engineering team Mon–Fri 8:30am–4:30pm EST at 1-201-419-6111 or request a quote.

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