To upgrade a UV20-3 or UVBB-3 System to include an audible alarm, you must purchase the alarm #36001021 along with the control module #44302303.
Features:
Produces high-pitched pulse tone
Battery operated
Monitors visible light output
Documents
Shipping Information
Shipping costs are based on your order’s weight, location, and selected shipping option. We strive to ship orders quickly, with expedited orders (Next Day Air or 2 Day) going out the same business day if placed before 4:30PM EST.