Smart Wireless Pressure Transmitter

The smart wireless pressure transmitter is based on diffused silicon piezoresistive measurement technology and is used for wireless pressure and level monitoring. It supports low-power wireless communication, local or remote parameter setting, LCD display, IP67 sealed waterproof design, and applications including smart petroleum, water, gas, heating, and fire protection.

Authoritative Qualification Certifications

We hold ISO quality certification, national high-tech enterprise qualification, China measuring instrument type approval, and explosion-proof and safety certifications to support reliable product quality.

Custom Engineering

Configurable materials, connections, signals, displays, and installation solutions for different process environments.

Product Overview

The ADDA-P-WX wireless pressure transmitter uses diffused silicon piezoresistive sensing technology. This high-stability, high-reliability wireless instrument is suitable for pressure and level monitoring in smart petroleum, smart water, smart gas, smart heating, and smart fire protection applications. It uses ultra-low-power wireless communication and requires no signal wiring, enabling convenient installation.

Applications

1. Smart petroleum    2. Smart water

3. Smart gas    4. Smart heating

5. Smart fire protection

Product Features

 Protection Grade: IP67, sealed waterproof design

Supports parameter configuration using local buttons or a remote device.

5-digit segmented LCD with a -30~70 degrees C operating temperature range. Displays pressure, battery level, wireless parameters, and other information.

Adjustable installation direction: connects to the field pipeline valve through a union or adapter, allowing the direction to be adjusted.

19Ah high-energy lithium thionyl chloride battery for long service life; optional battery and external power supply configuration.

High-gain antenna with a maximum wireless transmission distance of 2000m.

Supports private clouds and the matching cloud platform. Supports sending data to a specified IP address or website.

Ultra-low power consumption and a WDT watchdog design support stable long-term operation. Upper and lower alarm limits and dynamic-change thresholds can be configured; alarm information is reported immediately.

Supports data access through a mobile app and data reading by OPC configuration software.

Technical Specifications

Communication Method

Zigbee

(SZ9/A11)

LoRa

LoRaWAN

NB-IOT

4G

Parameter Configuration

Local

Local

Local

Remote

Remote

Power Supply

Lithium thionyl chloride battery (capacity: 19Ah); default sampling interval: 3 seconds

Data Interval (minutes)

5

1

20

60

60

Battery Life

3 years

3 years

4 years

2 years

3 years

Measuring Medium

liquids, gases

Operating Mode

Scheduled data transmission with an adjustable transmission interval.

Threshold Settings

Configurable pressure upper and lower limits and dynamic-change thresholds.

Measuring Range

-0.1~100MPa

Accuracy Class

0.25 class (default 0.5%FS; 0.1 and 0.2 accuracy classes can be customized)

Overload Pressure

See the range specifications.

Process Connection

M20*1.5 (other connections can be customized)

Temperature Compensation

-20~70 degrees C

Operating Environment

Temperature: -30 degrees C~70 degrees C; humidity: <93%RH

Housing Material

Cast aluminum

Protection Grade

IP67

Range

See the selection table; maximum turndown ratio: 5: 1.

The overload range is 1.5 times the nominal range.

 

Accuracy

Based on standards and reference test conditions, including best fit straight line (BFSL), hysteresis, repeatability. Calibration temperature: 20 degrees C ±5 degrees C.

Linear Output Accuracy

G

TD<=5

±0.2% Span

<=35kPa

±0.1% Span

≥80kPa

A

TD<=5

±0.2% Span

<=35kPa

±0.1% Span

≥80kPa

Note: TD (Turn down) means turndown ratio , TD= maximum range / current range

 

Ambient Temperature Influence

Product Type

Influencing Quantity

Range

G

± (0.1+0.03TD) %/ 20 degrees C of Span

<=35kPa

± (0.1+0.015TD) %/ 20 degrees C of Span

≥80kPa

A

± (0.125+0.03TD) %/ 20 degrees C of Span

<=35kPa

± (0.1+0.015TD) %/ 20 degrees C of Span

≥80kPa

 

Environmental Conditions

Item

Condition

Operating Ambient Temperature Range

-40 degrees C ~ 85 degrees C, LCD display: -30 degrees C ~ 70 degrees C

Storage Ambient Temperature Range

-40 degrees C ~ 100 degrees C, LCD display: -40 degrees C ~ 85 degrees C

Measured Medium Temperature Range

Silicone oil filling: -40 degrees C ~ 85 degrees C

Operating Ambient Humidity Range

5%RH~93%RH@40 degrees C

Hazardous Area

PCEC

Certificate No.: CE23.2876X 

Ex db IIC T6 Gb

Ex tb IIIC T80 degrees C Db

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Frequently Asked Questions

Find quick answers about product selection, customization, technical parameters, delivery, and support for ADDA industrial measurement instruments.

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Please provide the measured medium, measuring range, process temperature, process pressure, connection type, output signal, power supply, installation environment, and communication method if remote monitoring is required.

Yes. ADDA can provide customized solutions based on measuring range, process connection, wetted material, display type, communication protocol, installation method, and working environment.

Many ADDA instruments are available with explosion-proof or intrinsically safe configurations. Please confirm the site classification and certification requirements before selection.

Yes. Our team can help recommend a suitable instrument configuration after reviewing your application conditions, including medium, range, connection, output signal, and installation requirements.

Lead time depends on product type, quantity, customization requirements, and certification needs. Standard products usually have a shorter delivery time, while customized models may require additional production time.

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