air horn pressure switch for sale, brand-new and used.

Surplus working condition TEL AirFlow Monitors AFA 500 For Fume Hood Panel Fume Hood Alarm Made In England, P/N#: B468668 Items included in box are as pictured: (2) Air Flow Monitors (1) A.M. Transformers Plug In Class 2 Transformer, P/N#: AM-15600 (1) Operating and Instruction Manual ?FREE PRIORITY SHIPPING SAME DAY IF PURCHASE IS MADE BY NOON CST? AFA 500 Specifications: The AFA 500 is the most basic TEL fume hood monitor.