Seacom Process Instruments Sdn Bhd supplies Vaisala dew point transmitters and probes in Malaysia for compressed air, industrial dryers, dry gases and controlled production environments. Our team can help you select the measurement range, process connection and output needed for your installation.
A fixed dew point transmitter provides a continuous measurement signal for a compatible controller, display or monitoring system. Choose the instrument around your required dryness and process conditions, then confirm how the signal will be used for indication, trending or configured alarms.
Confirm the operating dew point and required accuracy before comparing models. A refrigerated dryer and an ultra-dry gas process need different measurement performance. Also specify gas composition, pressure, temperature and whether the sensor will be fitted directly into the process or installed in a sampling arrangement.
The probe, transmitter and display are not always one device. Where a selected probe needs an additional transmitter for the required display or output, include that equipment in the selection. State whether your receiving system needs 4–20 mA, a voltage signal, Modbus or another interface so the complete configuration can be checked.
Send the existing model and order code, a photograph of its label, the output settings and the process connection. A replacement should be checked against the installation as well as the required measurement range.
For an existing DMT152, review the DMT153 configuration. For other older instruments listed in this category, use their product pages to identify the replacement direction and confirm the details with Seacom before ordering.
Choosing a dew point instrument depends on whether you need permanent monitoring or portable checking, the dryer or process type, operating pressure and the target dew point. Use the comparison below as a starting point before selecting the instrument.
| Application | Portable or Fixed | Pressure / Installation | Target Dew Point | Recommended Instrument |
|---|---|---|---|---|
| Refrigerated air dryer | Fixed | Dryer outlet; up to 20 bar depending on installation | Approximately −30 to +50 °C Td/f | Vaisala DMT132 |
| Desiccant dryer / dry compressed air | Fixed | Direct or sampled measurement; confirm line pressure | Typically below −20 °C Td/f | Vaisala DMT143 / DMT143L |
| Pressurised compressed-air or gas pipeline | Fixed | Adjustable insertion into pressurised pipeline | Down to approximately −70 °C Td/f | Vaisala DMP8 |
| Ultra-dry air, nitrogen or industrial gas | Fixed | Direct or sampled gas measurement | Approximately −80 to −20 °C Td/f | Vaisala DMT153 |
| Maintenance checks across several dryers | Portable | Use suitable sampling accessories and confirm measurement pressure | Depends on selected DMP80 probe | Vaisala Indigo80 + DMP80 |
For a broader comparison of portable and fixed instruments for compressed air, dryers, dry rooms and industrial gases, see our dew point meter and transmitter selection guide .
For refrigerated dryers, desiccant dryers, pressure dew point, sampling arrangements and troubleshooting, read our compressed-air dryer dew point monitoring guide .
For maintenance teams that need to check several dryers, compare measurement points or verify a permanently installed transmitter, see our portable dew point meter guide for compressed air .
For ultra-dry air, nitrogen, glove boxes and industrial gases, see our low dew point sensor selection guide .
A permanent transmitter is normally preferred when the process needs continuous measurement, alarms, control-system integration or long-term trending. Portable measurement is more suitable for maintenance, commissioning, troubleshooting and checking several measurement points with one instrument.
| Requirement | Recommended Approach |
|---|---|
| Continuous dryer monitoring | Fixed dew point transmitter |
| Permanent alarm or PLC/BMS signal | Fixed dew point transmitter |
| Check several dryers or air lines | Portable dew point meter |
| Verify an installed transmitter | Portable reference instrument |
| Commissioning or troubleshooting | Portable measurement, followed by permanent monitoring where required |
Ask Seacom about dew point transmitter selection
Compare dew point instruments Compressed-air dryer monitoring Portable dew point measurement Low dew point measurement
Email: seacom@seacom.com.my
WhatsApp: +60 16 208 0697
There are 16 products.
The Vaisala DPT145 provides online dew-point, pressure and temperature measurement for SF6-insulated electrical equipment. The model is being discontinued and should not be specified for new projects.
The Vaisala DPT146 combines dew-point and process-pressure measurement in one compact transmitter for compressed-air systems. This model is discontinued and should not be selected for new projects.
The Vaisala DMT143 and DMT143L provide compact, dependable dew-point measurement for small industrial dryers, compressed-air systems, glove boxes and OEM equipment.
The Vaisala DMT152 provides accurate dew-point measurement down to −80 °C Td/f for ultra-dry industrial and OEM applications. This model is discontinued and has been replaced by the Vaisala DMT153.
The Vaisala DMT132 is a compact and economical dew-point transmitter designed to verify refrigerant-dryer performance by measuring the actual outlet-air dew point.
The Vaisala DMT345 and DMT346 provided direct dew-point measurement in hot industrial drying processes. Both models are discontinued and replaced by Vaisala DMP5 or DMP6 smart probes with an Indigo transmitter.
The Vaisala DMT340 Series provided configurable dew-point and temperature measurement for industrial low-humidity applications. The series is discontinued and replaced by Vaisala Indigo500 transmitters with DMP7 or DMP8 smart probes.
The Vaisala Indigo500 Series provides flagship industrial measurement integration: choose Indigo510 for a simplified single-probe system or Indigo520 for full dual-probe capability.
The Vaisala Indigo200 Series is the standard transmitter platform for one interchangeable Indigo-compatible smart probe, providing local display and practical automation-system connectivity.
The Vaisala DRYCAP® Dew Point and Temperature Probe DMP5 measures humidity directly in hot industrial processes with a long stainless-steel probe and adjustable installation depth.
The Vaisala DRYCAP® Dew Point Probe DMP6 measures humidity directly inside very hot industrial processes using a robust probe and passive cooling set.
The Vaisala DRYCAP® Dew Point and Temperature Probe DMP8 provides reliable low-humidity measurement in pressurised pipelines with adjustable installation depth.
