Product Overview
Discontinued – no longer available. Honeywell BW ended production of the GasAlertQuattro on December 1, 2023, and ended all spare-parts supply and factory service for the Quattro line on December 1, 2025. This part can no longer be ordered from Honeywell or from Ideal Calibrations. We have kept this page as a reference for Quattro owners.
Still running Quattros? Once a sensor, battery, or circuit board fails, the unit can no longer be repaired with new factory parts. Honeywell recommends the BW Icon series (a fixed-life, two-year 4-gas detector with no sensor or battery changes) or the serviceable BW Flex4 as replacements. For a pumped 4-gas detector, see the GasAlertMax XT II. Contact us if you need help matching a replacement to your application or calibration gas.
Replacement auxiliary filter for use with the QT-AF-K1 LCD protector (kit of 10). (P/N: QT-SS-AF-K1)
