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Part #129CP11-M16S1-0

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  • 0-16 bar (0-232 psi) sealed gauge
  • 0-230 psi sealed gauge
  • Digital I2C output
  • Very low power consumption (<6 μA at 1Hz measurement)
  • Small size (18 mm x 23.5 mm x 12.5 mm)
  • Easy design integration
  • Robust and reliable design
  • Compatible with drinking water safe application


  • Residential water meters
  • Water networks


Supply Voltage 1.7 - 3.6 VDC
Digital Output I2C
Resolution 14 bit min
Supply Current: Update Mode 750 to 1100 μA
Supply Current: Sleep Mode 0.07 to 1 μA
Wake-Up Response Time 0.5 ms max
Reverse Voltage -0.3 VDC
ESD IEC 61000-4-2
Radiated Immunity IEC 61000-4-3
Electrical Connection Flex cable (see dimensions section)
ESD Conforms to IEC 61000-4-2 Level 3, 4 kV contact / 8 kV air
Pressure Range 0 - 16 bar (0 - 232 psi)
Pressure Reference Sealed Gauge
Proof Pressure 2X FS(1) Pressure
Burst Pressure 2X FS(1) Pressure
Accuracy (Best Fit Straight Line)(2) +/- 1%FS(1), 25°C
Accuracy (Total Error Band)(3) +/- 2%FS(1), 4 to 40°C
Fluid Compatibility* Potable Water
Wetted Materials

Sense Element: 96% Aluminia (Al2O3)

Pressure Port: 304 L Stainless Steel

Inner seal: EPDM

Outer seal: EPDM

* Other fluid compatibility available upon request

(1) Full Scale Pressure = Pmax - Pmin

(2) Best fit straight line accuracy includes errors from non-linearity, non-repeatability, and hysteresis

(3) Total error band accuracy includes errors from non-linearity, non-repeatability, and hysteresis, zero offset, full span offset, and thermal effects

Random Vibrations DIN IEC 60068-2-27: 5G (2-2 kHz)
Mechanical Shock DIN IEC 60068-2-27: 40G1/2 HL SINE
Operating Temperature 2°C to 85°C
Storage Temperature -25°C to 85°C
Waterhammer 100K cycles 0 to 25 bar (0 to 360 psi)
Operational Pressure Cycling 1M
Pin Designation Description
1 EOC End-of-conversion and Output Interrupt
2 GND Ground
3 SDA Bi-directional data for I2C
4 SCL Clock input for I2C interface
5 VDD Power supply
6 n.c. No connection

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