Produal DPT-Priima
High-accuracy differential pressure transmitter for clean rooms
- ±0.4 % ±0.4 Pa
- Ranges from ±25 Pa
- 0–10 V / 4–20 mA
- Auto-zero option, IP54
HVAC, clean room & filter monitoring
Air Differential Pressure Transmitters & Switches
Produal, Beck & Halstrup-Walcher — supplied across India by Parshvi Technology
Measure a few pascals across filters, fans, ducts and clean rooms with a stable zero — transmitters, Modbus versions for BMS, and ATEX-rated switches.
- Ranges from ±25 Pa with ±0.4 % accuracy
- 0–10 V, 4–20 mA and Modbus RTU outputs
- Airflow calculation and fan/VAV control models
- ATEX switch for Ex zones 1, 2, 21, 22
Products
Differential pressure range
Pick a model to get its price and datasheet — or tell us your application and range and we'll recommend one.
Produal DPT-2W
2-wire differential pressure transmitter
- 4–20 mA two-wire
- ±1.5 % FS
- 10–35 VDC
- IP54
Produal DPT-Dual-MOD
Two pressure sensors with Modbus
- Two pressure sensors
- Modbus RTU
- 2 × 0–10 V outputs
- IP54
Produal DPT-Flow-MOD
Pressure & airflow transmitter with Modbus
- Flow, velocity or pressure
- Modbus RTU (RS-485)
- Auto-zero (AZ) option
Beck 984
Differential pressure transmitter
- -100 Pa to 1 bar
- 0–10 V / 4–20 mA
- -20…+70 °C
- 18–30 VDC
Beck 985
2-wire differential pressure transmitter
- -100 Pa to 1 bar
- 4–20 mA, 2-wire
- IP65
- M12 option
Beck 985-MODBUS
Differential pressure transmitter with Modbus
- Modbus RTU output
- For BMS integration
Beck 982R
Differential pressure transmitter
- 0–100 Pa up to 0–100 kPa
- -20…+70 °C
- Clean rooms, filters, fans
Beck 930 Adjustable Switch
Adjustable differential pressure switch
- 20–5000 Pa switch points
- Max 10 kPa
- Filters, fans, ducts
Beck 930 Ex (ATEX)
Adjustable switch for hazardous areas
- ATEX Ex zones 1, 2, 21, 22
- 20–5000 Pa
- Max 10 kPa
Beck 911.82 Factory-Set Switch
Factory-set differential pressure switch
- Factory-set 20–1000 Pa
- -20…+85 °C
- Up to 250 VAC contact
Produal PS Switch
Mechanical differential pressure switch
- 20–4500 Pa (by model)
- Dry air / non-aggressive gases
Brands we represent
Our Brands & Partners
Genuine products from 17 global manufacturers, supported in India by Parshvi Technology.
Auburn
Beck
Calex
Chemitec
Econox
Exner
Filsa
HAUBER-Elektronik
Halstrup-Walcher
Höntzsch
KxS
Kuntze
Pixsys
Produal
Seli
Shinko
Trumen
Selection guide
How to choose the right model
Clean room accuracy
→ Produal DPT-Priima
±0.4 % ±0.4 Pa, ranges down to ±25 Pa
Airflow calculation
→ DPT-Dual-MOD · DPT-Flow-MOD
Calculate airflow from fan or duct pressure, Modbus RTU
Fan & VAV control
→ DPT-Ctrl · DPT-Ctrl-MOD
Hold a fan, VAV or damper at constant pressure or flow
Precise low ranges
→ Halstrup-Walcher P 26 · P 34 · PU/PI
Measure from 10 Pa; P 34 fits a control cabinet
Industrial ranges
→ Beck 984 · 985 · 990
Selectable ranges, 0–10 V or 4–20 mA
Simple alarm / hazardous area
→ Beck 930 · 911.82 · 930 Ex
Switch contact instead of a signal; 930 Ex for Ex zones
Why Parshvi
Process Measurement & Automation Since 2011
2011
Since 2011
17
Global brands
India & Asia
Serving India & Asia
Fast
Quote turnaround
Expert
Application engineering
Full
Warranty & official documentation support
Explore more
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Chemitec · Exner
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Air Velocity & Flow
Produal
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Exner
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HMI & PLC
Pixsys
View products →View all products
Need something else? We supply 17 global brands — ask our engineer.
FAQ
Differential pressure FAQs
Not sure which model fits?
Tell us your application and pressure range — we'll recommend the right transmitter or switch.