The perfect solution for automated air conditioning and ventilation applications at an affordable price. Measure differential pressure in industrial and commercial buildings, offices, schools, hotels, museums, restaurants, libraries and more! 
 
**NOTE: Please contact Testo to ensure proper configuration when ordering the testo 6321 Transmitter**

testo 6351 Differential Pressure Transmitter 
 
**NOTE: Please contact Testo to ensure proper configuration when ordering the testo 6351 Transmitter**

testo 6381 differential pressure transmitter with calculation of flow velocity and optionally with humidity/temperature, accuracy &plusmn;0.5% of measuring range final value, automatic zero-point adjustment, selectable measuring range between 10 to 1000hPa, selectable signal outputs, optional display, output of all relevant pressure, flow and humidity paramters 
 
**NOTE: Please contact Testo to ensure proper configuration when ordering the testo 6381 Transmitter**

testo 6383 differential pressure transmitter in cleanroom-conform panel design, optionally with humidity/temperature, accuracy &plusmn;0.3% of measuring range final value, automatic zero-point adjustment, selectable measuring range between 10 to 10hPa, selectable signal outputs, optional display, output of all relevant pressure and humidity parameters 
 
**NOTE: Please contact Testo to ensure proper configuration when ordering the testo 6383 Transmitter**

Targeted monitoring of your compressed air consumption: Carry out compressed air measurements with the testo 6451 compressed air meter to locate leaks and enable allocation based on consumption. This will enable you to create greater transparency when it comes to your compressed air consumption and reduce costs. Particularly practical: the compressed air meter is easy to install.

Targeted monitoring of your compressed air consumption: Carry out compressed air measurements with the testo 6452 compressed air meter to locate leaks and enable allocation based on consumption. This will enable you to create greater transparency when it comes to your compressed air consumption and reduce costs. Particularly practical: the compressed air meter is easy to install.

Targeted monitoring of your compressed air consumption: Carry out compressed air measurements with the testo 6453 compressed air meter to locate leaks and enable allocation based on consumption. This will enable you to create greater transparency when it comes to your compressed air consumption and reduce costs. Particularly practical: the compressed air meter is easy to install.

Targeted monitoring of your compressed air consumption: Carry out compressed air measurements with the testo 6454 compressed air meter to locate leaks and enable allocation based on consumption. This will enable you to create greater transparency when it comes to your compressed air consumption and reduce costs. Particularly practical: the compressed air meter is easy to install.

testo 6651 humidity/temperature transmitter for critical climate, accuracy up to &plusmn;1.7 %RH (depends on the probe), selectable signal outputs, optional display, optional ethernet module, optional relay, 2 analog outputs 
 
**NOTE: Please contact Testo to ensure proper configuration when ordering the testo 6651 Transmitter**

Wall mountable box power supply 110-240 VAC 50/60 Hz / 24 VDC, Output current 350 mA, short circuit proof, max. 1.2 A

Wall mountable box power supply 110-240 VAC 50/60 Hz / 24 VD... - Desktop instrument

Wall mountable box power supply 110-240 VAC 50/60 Hz / 24 VD... - Desktop instrument