Differential pressure transmitter 699M (Modbus)
0 … 500 - 7000 Pa

The pressure transmitter 699M is used primarily for the monitoring of air and neutral gasses. The unit is optionally available with one or two differential pressure sensors, which allows the observation of differential pressure or volumetric flow at two individual points in the system. This makes the 699M ideally suited for a multitude of tasks in the HVAC industry. The 699M communicates via Modbus® RTU and features two universal inputs in addition to two analog outputs. The linking of further sensors and control of actuators offers the option of using the unit as a decentralized node for existing controllers, extending in- and outputs, and lowering installation costs. The sensors utilized by the unit are based on the unique and well-proven ceramic cantilevered beam technology developed by Huba Control AG.

Offer request

Air and neutral gases

Pressure range

0…500 – 7000 Pa


0 … 10 V


< ±0.5 fs

Electrical connection

4 x cable bushing for cable

Pressure connection

Connection pipe Ø 6.2 mm

Special snap mounting bracket for easy single handed mounting in sheet steel of varying thicknesses
Fully automated manufacture, including in-line adjustment of zero point and full scale value
Special design developed for large scale manufacture at an attractive price
High accuracy
Available with one or two differential pressure sensor units
Up to two universal inputs for 0 ... 10 V or passive temperature elements
Two 0 ... 10 V analog outputs
Simple installation
Reduced wiring effort through decentralized node


Female connector RAST 2.5 with cable 1450 mm
Female connector DIN EN 175301-803-C
Female connector DIN EN 175301-803-A
Connection kit for vent duct (metal)
Connection kit for vent duct (plastic)