AutomationDirect: Define Instruments Panel Meters, Signal Conditioners, and Temperature Transmitters
April 7, 2026
Define Instruments digital panel meters, signal conditioners, and temperature transmitters feature versatile measurement options and easy configuration.
The Merlin series digital panel meters accept current, temperature, voltage, potentiometer, and pulse inputs and provide advanced scaling, linearization, and optional analog retransmission or relay outputs. A bright LED display, IP65 front rating, and USB-powered configuration via Define’s toolbox software make the Merlin series a versatile solution for process monitoring and control.
The LPI610 series loop-powered digital panel meter features a compact, front-mount display that requires virtually no space behind the panel. It offers a high-resolution LCD with selectable units, simple pushbutton setup, built-in diagnostics, and an IP65 front rating, making it a clean, reliable option for 4-20 mA loop indication.
The Javelin series loop-powered signal conditioner supports a wide range of input types and provides a standard 4-20 mA output for easy integration. This DIN-rail mounted conditioner features a slim 12.5 mm profile that maximizes cabinet space.
TM series signal conditioners provide universal input support with isolated voltage/current outputs or loop-powered 4-20 mA operation, depending on the model. Their straightforward software configuration, flexible power options, and narrow DIN-rail housings simplify integration into dense control panels.
Sentry series signal conditioners feature universal inputs, DIN-rail mounting, dual relay outputs with optional analog retransmission, and a convenient 4-digit LED display for real-time monitoring and fault indication. With selectable modes for heating, cooling, alarm, and pump-duty control, the Sentry series delivers process controller capability in a compact form factor.
TM-2HL series head-mount temperature transmitters provide accurate 4-20 mA outputs for RTD, thermistor, and thermocouple sensors in standard DIN Form B heads. These loop-powered modules offer fast response, low drift, configurable failure modes, and USB programming for quick commissioning.
Define Instruments temperature transmitters start at $54.00 (DEFINE-TM-2HL), digital panel meters start at $235.00 (DEFINE-MERLIN), and signal conditioners start at $171.00 (DEFINE-JAVELIN).
