Johnson Controls A19AAA-40 Temperature Control 30067439-890 The Resideo T4398B1029 is a

The Resideo T4398B1029 is a heavy-duty high performance electric heat thermostat engineered for precise control of electric baseboard heaters

this epoxy-encapsulated unit provides a secure

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

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

ensuring reliable shifting even under high pressure differentials

Johnson Controls A19AAA-40 Temperature Control 30067439-890 The Resideo T4398B1029 is aThe 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