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Single Pressure Transmitters

Single pressure transmitters measure one process pressure at a single port and output a standard signal — 4-20 mA, 0-5 / 0-10 VDC, millivolt, or HART — for a PLC, controller, or data logger. Use them for hydraulics, pumps and compressors, tank level, HVAC and refrigeration, water and wastewater, and industrial process monitoring. ZOT stocks Omega, Dwyer, and ACI — gage, absolute, sealed-gage, compound, vacuum, and barometric ranges from inH₂O up to 10,000 psi.

Choosing the Right Transmitter — Three Specs to Lock
1

Pressure Type & Range

Gage: vented reference, standard for most process work Absolute: sealed-vacuum reference, no barometric drift Compound / Vacuum: readings that swing below atmospheric Sealed Gage: fixed reference, preferred at higher ranges

2

Output Signal

4-20 mA: long wire runs, noisy plants, retrofit loops 0-10 / 0-5 / 1-5 VDC: modern and legacy controller inputs mV / mV/V: ratiometric strain-meter and OEM inputs HART / Digital: smart transmitters for two-way data

3

Accuracy & Build

0.05-0.08% BSL: reference-grade Omega silicon transducers 0.25% BSL / FS: general-purpose precision for most jobs 0.5-1.0% FS: economical OEM and monitoring duty Wetted parts: 316L / 304L / 17-4 PH SS; IP65-IP67 & NEMA 4X

Tip: Use the filters on the left to narrow by brand, series, pressure type, range, output signal, accuracy, process connection, and enclosure rating. Looking for smart/HART or intrinsically-safe models? Filter Brand to Dwyer and look for the 3200G and IS626 series.
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