Sensors
– Temperature
– Humidity and temperature
– Air quality
– Pressure
– Flow
– Solar sensors

Showing 1–16 of 20 results

Siemens Modulating refrigerant valves with magnetic actuator, PN 32 M3FK..LX.. hermetically sealed, for condenser control

Siemens Modulating refrigerant valves with magnetic actuator, PN 32 M3FK..LX.. hermetically sealed, for condenser control

  • Mixing or straight-through valves with magnetic actuator for modulating
    capacity control of condensers.
    ? Short positioning time (approx. 1 s)
    ? High resolution
    ? High rangeability
    ? Hermetically sealed
    ? Versatile electrical interface
    ? Friction-free
    ? Port 1 -> 3 closed when de-energized
    ? Robust and maintenance-free

Siemens QBM4100-1D Differential pressure sensor For air and non-aggressive gases, with calibration certificate

Siemens QBM4100-1D Differential pressure sensor For air and non-aggressive gases, with calibration certificate.

Calibration certificate from the factory
• High degree of measuring accuracy
• Pressure-linear characteristic curve
• Operating voltage AC 24 V / DC 13.5…33 V or DC 11….33 V
• Output signal DC 0…10 V or 4…20 mA
• Simple and fast mounting thanks to integrated fixing angle bar in the hous-ing
• Calibrated and temperature-compensated measuring signal
• Excellent long-term response
• Supplied with connection set
• Very short reaction time
• Display* indicate

Siemens QBM4100-1U Differential pressure sensor For air and non-aggressive gases, with calibration certificate

Siemens QBM4100-1U Differential pressure sensor For air and non-aggressive gases, with calibration certificate.

Calibration certificate from the factory
• High degree of measuring accuracy
• Pressure-linear characteristic curve
• Operating voltage AC 24 V / DC 13.5…33 V or DC 11….33 V
• Output signal DC 0…10 V or 4…20 mA
• Simple and fast mounting thanks to integrated fixing angle bar in the hous-ing
• Calibrated and temperature-compensated measuring signal
• Excellent long-term response
• Supplied with connection set
• Very short reaction time
• Display* indicate

Siemens QBM4000..Differential pressure sensor For air and non-aggressive gases, with calibration certificate.

Siemens QBM4000..Differential pressure sensor For air and non-aggressive gases, with calibration certificate.

Calibration certificate from the factory
• High degree of measuring accuracy
• Pressure-linear characteristic curve
• Operating voltage AC 24 V / DC 13.5…33 V or DC 11….33 V
• Output signal DC 0…10 V or 4…20 mA
• Simple and fast mounting thanks to integrated fixing angle bar in the hous-ing
• Calibrated and temperature-compensated measuring signal
• Excellent long-term response
• Supplied with connection set
• Very short reaction time
• Display* indicate

Siemens QBM3020-1D Air duct differential pressure sensor with display, 0…100 Pa

Siemens QBM3020-1D Air duct differential pressure sensor with display, 0…100 Pa

• High degree of measuring accuracy
• Adjustable characteristic curve (pressure-linear or extracting-the-root)
• Operating voltage AC 24 V or DC 13.5…33 V
• Output signal DC 0…10 V
• Zero-point adjustment
• Simple and fast mounting thanks to integrated fixing angle bar in the housing
• Maintenance free thanks to excellent long-term stability
• Calibrated and temperature-compensated measuring signal
• Supplied with plastic tubing
• Very short response time
• Actual value display*
* Depending on type

Siemens QBM3020….Air duct differential pressure sensor, 0…100 Pa

Siemens QBM3020…. Air duct differential pressure sensor, 0…100 Pa

• High degree of measuring accuracy
• Adjustable characteristic curve (pressure-linear or extracting-the-root)
• Operating voltage AC 24 V or DC 13.5…33 V
• Output signal DC 0…10 V
• Zero-point adjustment
• Simple and fast mounting thanks to integrated fixing angle bar in the housing
• Maintenance free thanks to excellent long-term stability
• Calibrated and temperature-compensated measuring signal
• Supplied with plastic tubing
• Very short response time
• Actual value display*
* Depending on type

Siemens QBM2030..Differential pressure sensor, DC 0…10 V

Siemens QBM2030..Differential pressure sensor, DC 0…10 V

Pressure-linear characteristic with selectable pressure measuring range
• Operating voltage AC 24 V or DC 13.5…33 V
• Output signal DC 0…10 V
• Zero-point adjustment
• Simple and fast mounting thanks to integrated mounting brackets in the housing
• Maintenance free
• Calibrated and temperature-compensated measuring signal
• Supplied with tubing connection set

Siemens QFM81.21 Room hygrostat, setpoint setting range 15…95 % r.h., setpoint adjuster inside device

Siemens QFM81.21 Room hygrostat, setpoint setting range 15…95 % r.h., setpoint adjuster inside device

On/off hygrostat with microswitch, with temperature-compensated humidity sensor for temperature-independent hu-midity measurements, with stabilized sensing strip (good linearity, very stable even at high humidity, in-sensitive to dust and contaminated air), for the control of humidification equipment, for the control of dehumidification equipment, for mounting in ventilating ducts or rooms

Siemens QFM81.2 Duct hygrostat, setpoint setting range 15…95 % r.h.

Siemens QFM81.2 Duct hygrostat, setpoint setting range 15…95 % r.h.

On/off hygrostat with microswitch, with temperature-compensated humidity sensor for temperature-independent hu-midity measurements, with stabilized sensing strip (good linearity, very stable even at high humidity, in-sensitive to dust and contaminated air), for the control of humidification equipment, for the control of dehumidification equipment, for mounting in ventilating ducts or rooms

Siemens QFM41..Duct sensor for rel. humidity/temperature

Siemens QFM41.. Duct sensors for rel. humidity / temperature for demanding requirements, with calibration certificate

• Operating voltage AC 24 V / DC 13.5…35 V
• Signal output DC 0…10 V / 4…20 mA for relative humidity and temperature
• Very high measuring accuracy throughout the entire measuring range
• Capacitive humidity measurement
• Recalibration service
• Test function for loop test
• Range of use −40…+70 °C / 0…100 % r. h.

Siemens QFM31..D Duct sensors for rel. humidity / temperature for demanding requirements

Siemens QFM31..D Duct sensors for rel. humidity / temperature for demanding requirements

• • Operating voltage AC 24 V / DC 13.5…35 V
• Signal output DC 0…10 V / 4…20 mA for relative humidity and temperature
• Very high measuring accuracy across the entire measuring range
• Function test
• Capacitive humidity measurement
• Range of use −40…+70 °C / 0…100 % r. h. with LCD display −25…+70 °C / 0…100 % r.h.

Siemens QFM31..Duct sensors for rel. humidity / temperature for demanding requirements

Siemens QFM31..Duct sensors for rel. humidity / temperature for demanding requirements

• Operating voltage AC 24 V / DC 13.5…35 V
• Signal output DC 0…10 V / 4…20 mA for relative humidity and temperature
• Very high measuring accuracy across the entire measuring range
• Function test
• Capacitive humidity measurement
• Range of use −40…+70 °C / 0…100 % r. h. with LCD display −25…+70 °C / 0…100 % r.h.

Siemens QFA1001 Room hygrostat, setpoint setting range 30…90 % r.h., external setpoint adjustment

Siemens QFA1001 Room hygrostat, setpoint setting range 30…90 % r.h., external setpoint adjustment

?Hygrostat with single-pole microswitch
• Humidity measuring element made of stabilized plastic texture
• Setpoint knob for the upper switching point
• For controlling humidification equipment
• For controlling dehumidification equipment
• For mounting directly on the wall or on a recessed conduit box