Product Details

  • Keep your fan filter units working safely and efficiently
  • 1 Filter Replacement Alarm unit covers for all FFUs in your cleanroom!
  • Receive automatic replacement alerts to avoid costly and unexpected operational interruptions
  • Prevent electrical/fire hazards caused by overworked motors pushing against overloaded HEPA filters
  • Control differential pressure set-point to adjust frequency of filter replacement
  • Includes audible buzzer with silencer that sounds when set point level is exceeded
  • Factory set to issue a warning alarm when pressure reaches twice the initial backpressure (typically 1.5" WC), indicating need for filter replacement (adjustable 0.5" - 2" WC)
  • Alarm unit connects to one FFU equipped via challenge port and signals when all filters are ready to be replaced
  • TUI Logo flashes when the HEPA or ULPA filter needs to be replaced
  • Integrated Minihelic gauge displays the backpressure within the fan/filter unit
  • Monitoring system’s control box is typically mounted above the cleanroom control panel
  • Module draws power from the cleanroom PDM or can be connected to a standard 120V outlet (order power outlet cord adapter separately)


Unit of Measure: EA

Electrical Specifications: 120 V, 50/60 Hz

Weight, Product: 3 lb

Dimensions, Product: 5" W x 8.1" D x 5" H

Weight, Shipping: 5 lb

Dimensions, Shipping: 10" W x 12" D x 10" H

Package Type: Crate

Fan Filter Units

  • Terra Universal WhisperFlow® Filter Fan Units Terra Universal WhisperFlow® Filter Fan Units
  • Cleanroom HEPA or ULPA Fan Filter Unit WhisperFlow Cleanroom HEPA Fan Filter Unit
  • Stainless Steel WhisperFlow Fan and Filter Units Stainless Steel WhisperFlow Fan and Filter Units, 2' x 4'
  • EC HEPA Fan Filter Unit Smart WhisperFlow Fan Filter Unit with EC Motor
  • Room Side Replaceable Fan Filter Units (FFUs) Room Side Replaceable WhisperFlow® Fan Filter Units (FFUs)
  • Explosion-Proof Softwall Cleanroom Explosion-Proof Softwall Cleanroom
  • 2' x 4' Ducted HEPA Filter Unit Ducted HEPA Filter Unit, 2' x 4'
Terra Universal WhisperFlow® Filter Fan Units

On a tight schedule? Choose FasTrak 24/7 Priority Service to help meet your critical schedule for Terra-manufactured products, either before or after your order is placed.*

  • FasTrak 24/7 provides a 24/7 commitment to meet the shipping date YOU specify, regardless of quoted lead times.
  • FasTrak 24/7 assigns a dedicated production team plus a dedicated senior expeditor working three shifts to meet your delivery specification.
  • FasTrak 24/7 guarantees* to meet the agreed-to specified ship date.

Call for pricing. FasTrak service fees cover costs of additional services only, without additional profit.

 * Terra's FasTrak services limited guarantee: to ship on the ESD or date specified OR to refund up to 100% of FasTrak charges. This guarantee covers no direct, special, consequential or other damages and is strictly limited to up to 100% of the amount paid for FasTrak service. When a specified ship date is missed due to factors outside Terra's control (vendor performance, deliveries by shipping companies, etc.) and random factors such as accidents, the credit of up to 100% of the FasTrak 24/7 may not apply. FasTrak service requested after order placement will be quoted and accepted based on available time remaining before required ship date.