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Featured Calibrators Parade

NEW • Featured APPA 507 Process Calibrator

APPA 507 Process Calibrator

Model: APPA 507

High-efficiency process multimeter with versatile measurement/sourcing, user-friendly controls, and robust design for field and lab calibration.

NEW CL-420B Loop Calibrator

CL-420B Loop Calibrator

Model: CL-420B

Improved loop calibrator with simultaneous mA/% display, 24V loop power, and enhanced accuracy — designed for fast and reliable loop testing.

CL-327A Process Calibrator

Multi-Function Process Calibrator

Model: CL-327A

Portable calibrator for DC V/I, resistance, thermocouple, RTD, frequency, pulse, and switch ON/OFF signals — ideal for automation system calibration.

CL-325 Process Calibrator

Process Calibrator

Model: CL-325

4–20mA with 24V loop supply, 0–100mV / 0–1V / 0–12V, TC K/J/E/T, 1–62,500Hz, 0.025% accuracy, step & ramp functions, open/short alert.

Sound Level Calibrator DSL-336A

Sound Level Calibrator

Model: DSL-336A

94dB & 114dB at 1kHz, accurate and simple to use; fits 1", 1/2", and 1/4" microphones.

CL-420A Loop Calibrator (Discontinued)

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Replaced by: CL-420B

CL-327 Temperature Calibrator (Discontinued)

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Replaced by: CL-327A

CL-326A Process Calibrator (Discontinued)

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Suggested Alternatives: CL-325 or CL-327A