Johnson Controls A19AAA-40 Temperature Control 30067439-890 2-pound steel base required for

2-pound steel base required for a clean

allowing technicians and facility managers to identify which specific detector has entered an alarm state when the detector itself is not easily visible

or visible carbon scorching on the relay terminals

the TCS ID1100 display utilizes high-contrast LCD technology to ensure legibility in low-light conditions

Verify your controller output before installation to prevent damage

Johnson Controls A19AAA-40 Temperature Control 30067439-890 2-pound steel base required forThe Johnson Controls A19AAA 40 is a heavy duty, single stage remote bulb thermostat designed for precision temperature regulation in demanding HVACR environments. Engineered with a liquid filled sensing element, this control provides consistent "repeat" accuracy that remains unaffected by barometric pressure or cross ambient temperature fluctuations. This specific model features a temperature range of 20? F to 80? F (? 5? C to 28? C), making it an