Johnson Controls A99BB-300C PTC Silicon Temperature Sensor with PVC Cable 9.75 Feet

The Johnson Controls A99BB-300C is a precision PTC (Positive Temperature Coefficient) silicon temperature sensor designed for HVAC and building automation applications. This sensor features a durable silicone-encapsulated sensing element with a 9-3/4 foot PVC jacketed cable for flexible installation in a wide range of environments.

Key Features:

• PTC silicon sensing element for accurate temperature measurement
• Wide temperature range: -40°F to 212°F (-40°C to 100°C)
• 9.75 foot (3 meter) PVC cable length provides installation flexibility
• Silicone sensor encapsulation protects against moisture and contaminants
• Compatible with Johnson Controls building automation controllers and thermostats
• Ideal for duct, pipe, and ambient air temperature sensing

This sensor is commonly used in commercial and industrial HVAC systems for monitoring and controlling temperature in critical applications. The PTC technology provides reliable, linear temperature measurement across the full operating range, making it suitable for both heating and cooling applications including chillers, boilers, air handlers, and zone control systems.