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Signal Conditioners, Transmitters,
Isolators, Splitters, Alarms

2 Channel I/O

AC Alarms, AC Input

Current Sensors

DC Alarms, DC Input

DC to Frequency

Head-Mount Transmitters

Frequency Alarms

Frequency to DC

Load Cell Amplifiers

Loop Isolators

Math Modules

Potentiometer Input

Power Supplies

P-I converters

RTD Alarms & Transmitters

RTD Temperature Indicators,
Alarms & Transmitters

Seneca Products

Signal Splitters

Thermocouple I/O & Alarms

Universal Input

Valve Positioners

Accessories & Sockets


As a critical manufacturing business we continue to run our operations at normal levels and are doing our best to ensure the usual availability, quality and speed of service you have come to expect from us. Thank you for your continued confidence in API/Cecomp as your business partner!
APD8000New!
APD 8000 Universal Input Signal Conditioner
mADC, VDC, 13 T/Cs, 15 RTDs, 7 Thermistors, Potentiometer
*Free I/O Range Setup*
APD 41393 New!
APD 41390 Thermocouple Converters
Convert Any Thermocouple to
Any Thermocouple Output or
DC Process Output
k121 K-line
Seneca
K-Line Thin DIN 6 mm Transmitters
Call us for ModBUS, CANopen, Ethernet Devices



Seneca T121

Head Mount Process Transmitters
API 1090G APD4380
DC Input Transmitters and Alarms
APD4930 IsoSplitter
IsoSplitter® Signal Splitters
DuoPak®2 Channel Signal Conditioners
APD4059
Load Cell Amplifiers
Strain Gauge Alarms


current sensor current switch

Current Sensors & Switches
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APD 4930 Features
APD 4930 Features
APD 8000 Features
APD 8000 Features
API 4130 GL New Features
API 4130 GL New Features
Seneca K-Line brochure
Seneca K-Line brochure
API catalog 2015
API 8 pg catalog
APD signal conditioners
APD signal conditioners
APD IsoSplitter signal splitters
APD IsoSplitter signal splitters
APD HV-DC signal conditioners
APD high voltage input signal conditioners
API plug in signal conditioners
API plug in signal conditioners
API brochure
API brochure
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Our Mission: Absolute Process Instruments is committed to designing, manufacturing, and selling quality products that provide our customers with cost-effective solutions to their industrial process measurement challenges, while maintaining long-term harmonious and mutually beneficial relationships with our customer, dealers, distributors, suppliers, employees, and shareholders.

Since 1988Absolute Process Instruments History