HD9408TBARO Barometric Pressure transmitter output 0…1Vdc, measuring range 800…1100mbar.
Power supply 8...35Vdc, working temperature -30°C…+60°C. On request output: 0…5Vdc, 1…5Vdc, 1…6Vdc, 4…20mA
HD9408TRBARO Barometric Pressure transmitter output 0…1Vdc, measuring range 800…1200mbar.
Power supply 12…35Vdc, temperature working range –40°C…+60°C, integrated heater sensor.
Typical consumption at 20°C: 20mA. On request output 0…5Vdc, 1…5Vdc, 1…6Vdc.
HD9908TBARO Digital barometric pressure transmitter with LCD indication, 3½ digit, minimum and maximum relay. Power supply 24Vac (on request 230Vac), working temperature -20°C…+60°C.
Outputs: 0…20mA, 4…20mA, 0 …1Vdc, 0…5Vdc.

HD 9408T BARO, HD 9408TR BARO and HD 9908T BARO are analog output electronic Barometric Pressure Transmitters barometers. They use a piezoresistive sensor element which gives extremely accurate and stable measurement of the atmospheric pressure and assures excellent repeatability,
low hysteresis and very good temperature stability.

The output signal of the sensor is conditioned to provide a voltage or a current output linearly proportional to the barometric pressure. 

The transmitters are ready to use as they have been factory calibrated. 

A zero adjustments potentiometer is available for offset to station elevation.

HD 9408T BARO
Requires dc voltage excitation, its low power consumption (< 4 mA) makes it well-suited to portable or remote battery from solar powered applications.
Barometric transmitter output 0...1Vdc, measuring range 800...1100mbar, power supply 8...35Vdc, temperature range -30°C... 60°C. 
On request output 0...5Vdc, 1...5Vdc,1 ...6Vdc, 4...20mA..

HD 9408TR BARO
Offers superior temperature performance: the internal circuitry allows the sensor to work at constant temperature so that it achieves accurate temperature compensation over the whole range from -40°C to +60°C.
Barometric transmitter output 0...1Vdc, measuring range 800...1200mbar, power supply 12...35Vdc, temperature range -40°C... 60°C thermostat-controlled sensor. 
Typical consumption at 20°C: 20mA. 
On request output 0...5Vdc, 1...5Vdc,1 ...6Vdc.

HD 9908T BARO
Digital barometric transmitter with LCD indication, 3½ digit, minimum and maximum relay. Power supply 24Vac, on request 230Vac, 
temperature working range -20°C... 60°C. 
Output: 0...20mA, 4...20mA, 0 ...1Vdc, 0...5Vdc.