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🌡️ Stay cool, stay smart — control your climate like a pro!
The Johnson Controls A99BB-600C Penn Series A99 PTC Temperature Sensor offers precise temperature monitoring from -40 to 212°F with an easy-to-read adjustable backlit LCD. Designed for seamless integration with A421 control modules, it features a durable, corrosion-resistant enclosure and a simple three-button touchpad for quick setup. Ideal for professional HVAC applications, it ensures reliable, efficient climate control with advanced safety and programming options.
| Customer Reviews | 5.0 out of 5 stars 3 Reviews |
K**R
Works great - was able to extend the reach of my sensor by myself
The control unit I bought came with a 2' sensor lead on it - found this one and was able to change it out (2 wires) and extended my reach quite a bit. Worked perfectly for setting up my outdoor wood boiler after a fire burnt up my old control unit - I was able to mount this controller off the unit in a protected area so if there ever is a flame up the control box will be safe.
Trustpilot
2 weeks ago
2 months ago