Automation Components Inc (ACI) A/CP-SP Thermistor

The A/CP-SP is a professional-grade 10K Ohms @ 77 Deg F (25 Deg C) Type II Thermistor designed for high-traffic environments where standard plastic wall sensors are prone to physical damage or tampering. This stainless steel plate temperature sensor features a brushed metal finish for a clean, industrial look and is functionally identical to the ACI/CP-SP. Built with a negative temperature coefficient (NTC) element, it offers high-precision HVAC room temperature sensing and is compatible with major building automation systems, including those from Carrier, Trane, and Distech. The brushed stainless steel plate mounting is designed to fit over a standard single-gang junction box and includes a foam insulation pad to prevent thermal draft interference from inside the wall cavity. This tamper-proof HVAC sensor is an ideal solution for schools, hospitals, and public hallways, providing a ruggedized 10K Type II thermistor interface for reliable long-term performance.

Key Benefits

• Rugged Durability: The 304 stainless steel plate protects the sensing element from impact and unauthorized adjustment in high-traffic areas.
• Industry Compatibility: Standard 10K Type II curve ensures seamless integration with most Building Automation Systems (BAS) and controllers.
• Accurate Monitoring: Includes a foam backing to eliminate false temperature readings caused by wall cavity drafts.
• Aesthetic Integration: The brushed metal finish provides a professional, low-profile appearance suitable for modern commercial interiors.
• Tamper Resistance: Unlike standard room sensors, the flat plate design and optional security screws prevent occupant interference with HVAC setpoints.

Common Questions

What is the difference between A/CP-SP and ACI/CP-SP?
There is no functional difference; the A/CP-SP and ACI/CP-SP are the same 10K Ohm Type II sensor manufactured for various distribution channels.

Can I use this sensor with a Honeywell or Johnson Controls system?
Yes, as long as your controller is configured for a 10K Type II thermistor curve. This is the most common NTC thermistor standard used in commercial HVAC controls.

Wait, my readings are slightly off after installation. Why?
Check for air leaks behind the plate. If the foam pad is not compressed against the wall, air from the wall cavity can skew the ambient temperature sensor readings.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.