HomeSilver Series Options & Accessories Silver Series Options & Accessories Standard Silver Series accessories include: water cooling, air purge, adjustable/fixed brackets and more. Silver C Series AP1 – Air Purge for 2:1 Optics AP2 – Air Purge for 15:1 and 30:1 Optics AB1 – Adjustable Bracket FB1 – Fixed Bracket PW1 – Protective Plastic Window EA – Remote Emissivity Adjuster (C9A Series Only) Silver M Series TS – Touchscreen Display Silver U Series AP3 – Air Purge WCAP3 – Water Cooling Air Purge AB3 – Adjustable Bracket FB3 – Fixed Bracket PW3 – Protective Plastic Window All Silver Series Sensors LST – Laser Sighting Tool APT – Heavy Duty Air Purge PSD – Power Supply Consult with one of Williamson’s Temperature Experts We would love to discuss your temperature measurement application with you.