Filter Patch

Dust-laden outdoor air can block the measuring channel of a PM2.5 sensor. Once clogged, the sensor reports heavy concentrations and keeps alarming, and the readings can no longer be trusted.FLT-C001 is a circular replaceable filter patch designed for the CL-210 and DL-1000 series. Engineers can change the patch in the field without removing the device from its installation, which keeps downtime and repair costs down compared with sending a clogged module back for repair.Supplied as a pack of four patches, each measuring OD 16 mm and ID 12 mm. The patches are RoHS and WEEE certified.ApplicationsOutdoor PM2.5 air quality monitoringDusty environments where the PM2.5 sensor inlet is prone to clogging

The FLT-C002 is a replacement filter patch for the CL-220 series PM2.5 sensor modules. Outdoor installations collect dust and aerosol that can block the sensor's measuring channel, which leads to continuous high-concentration alarms and unreliable readings. This pack of four rectangular patches allows the blocked element to be changed in the field.Because the patch can be replaced without uninstalling the device, maintenance is quicker and the module does not need to be sent back to the factory for repair. This reduces repair costs and avoids the downtime that normally accompanies a return-to-factory service.Sold as a pack of four patches, each measuring W27 x H20 mmRoHS compliantApplicationsPM2.5 particulate monitoring in dusty outdoor environments with CL-220 series sensorsMaintenance of CL-220 series modules where minimal downtime is required

The FLT-C004 is a replaceable circular filter patch, supplied as a pack of six, designed for the DLW-1000 series. It lets you renew the protective patch in the field instead of sending a clogged unit back for repair.PM2.5 sensors used outdoors take in dusty air, and aerosol can block the measuring channel, leading to persistent high-concentration alarms and unreliable readings. Swapping the patch restores the sensor's air path while the device stays installed, which reduces downtime and the cost of repair.Circular patch, OD 35.5 mm, ID 30.6 mmPack of 6 replacement patchesReplaced without uninstalling the DLW-1000 unitDesigned for the DLW-1000 series with PM2.5 sensingApplicationsOutdoor PM2.5 air quality monitoring in dusty environmentsOngoing maintenance of DLW-1000 series installations