A/1.8K-S-4X - 1.8K Ohms @ 77 Deg F (25 Deg C) Thermistor. The polycarbonate NEMA 4X strap on configuration has a sensor potted to the back side of a copper plate and a foam pad creates compression when the strap worm drive is tightened. The final result is a good thermal transfer with pipes that range from 2 to 5" in diameter. ACI Strap on temperature sensors are designed for HVAC or Building Automation Systems.  Specific applications include: chiller hot water system tank and boilers.

A/1.8K-S-GD - 1.8K Ohms @ 77 Deg F (25 Deg C) Thermistor. The galvanized metal strap on configuration has a sensor potted to the back side of a copper plate and a foam pad creates compression when the strap worm drive is tightened. The final result is a good thermal transfer with pipes that range from 2 to 5" in diameter. ACI Strap on temperature sensors are designed for HVAC or Building Automation Systems.  Specific applications include: chiller hot water system tank and boilers.

A/1.8K-S-PB - Strap on sensor plastic enclosur 1.8K Ohms @ 77 Deg F (25 Deg C) Thermistor. The plastic enclosure strap on configuration has a sensor potted to the back side of a copper plate and a foam pad creates compression when the strap worm drive is tightened. The final result is a good thermal transfer with pipes that range from 2 to 5" in diameter. Extra straps can be purchased for $1 and will be listed as an additional part number (2-5" HOSE CLAMP).  Please note that the plastic enclosure is rated to 140 degrees F. For higher temperature application the -GD enclosure option is recommended. ACI Strap on temperature sensors are designed for HVAC or Building Automation Systems.  Specific applications include: chiller hot water system tank and boilers.    

A/1.8K-SBS - ACI's Low-Profile "Button" Sensor is designed to be aesthetically pleasing for higher profile applications. It's small size and appearance make it a perfect choice for applications where temperature sensors should blend into the background. Options include bras stainless stee or plastic for installation flexibility. Low profile blends into environment aesthetically. Available in Plastic Brass and Stainless Steel. Mounting Accessories include Etched Teflon lead wire Paintable