Description
Johnson Controls A99BB-25 PTC Silicon Temperature Sensor Overview
The Johnson Controls A99BB-25 is a precision PTC (Positive Temperature Coefficient) silicon temperature sensor engineered for reliable performance in a wide range of HVAC and building automation applications. With a broad operating range spanning -40°F to 212°F (-40°C to 100°C), this sensor is well-suited for monitoring supply air, return air, duct, and hydronic system temperatures in both commercial and residential settings.
Key Features
- PTC silicon sensing element for accurate, stable temperature measurement
- Wide temperature range: -40°F to 212°F (-40°C to 100°C)
- 9¾” PVC-jacketed cable for flexible installation and routing
- Durable PVC cable construction resists moisture and abrasion
- Designed for compatibility with Johnson Controls controllers and building automation systems
- Compact sensor body for easy mounting in tight spaces
- Reliable long-term performance in demanding HVAC environments
Typical Applications
- Supply and return air temperature sensing
- Duct temperature monitoring
- Hydronic heating and cooling systems
- Building automation and energy management systems
- Commercial HVAC controls integration
Product Specifications
- Brand: Johnson Controls
- Model / SKU: A99BB-25
- Sensor Type: PTC Silicon
- Cable Type: PVC
- Cable Length: 9¾ inches
- Temperature Range: -40°F to 212°F (-40°C to 100°C)
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