A Duct Fixing Kit to be used with all air pressure switches and sensors. The kit consists of 2m (6.56 ft), 5mm (0.20") i/d plastic tubing, 2 x pitot tubes and 4 x fixing screws. A DFK is supplied with every air pressure switch and sensor sold but spares can also be purchased.
The DPA is used in conjunction with the AV-622 Air Velocity Probe to adjust the depth of the probe that is inserted into the duct. This is particularly useful in smaller ducts so that you can measure air velocity from the centre of the duct which is optimal for accurate measurement. It can also be used with the RH-622.
An insulating gasket for use with space temperature sensors. The gasket reduces the amount of conductive temperature passed through to the sensor from the surface it is mounted on to ensure that the temperature measured is that of the air in the room.
A duct flange plate to adjust the depth of probe exposed in the duct when using the TT-342 High Temperature Immersion Sensor, TT-554 Remote Probe Sensor and TT-322 Duct Temperature Sensor.