Seacom supplies humidity meters, humidity transmitters, temperature and humidity probes, data loggers, recorders and calibration equipment for industrial, commercial and controlled-environment applications.
Reliable humidity measurement helps maintain product quality, process stability, occupant comfort and regulatory compliance. The correct instrument depends on the measurement range, temperature, pressure, installation method, required outputs and whether portable checks or continuous monitoring are needed.
Why accurate humidity measurement matters
Protect product quality - Control moisture-sensitive materials, production processes, storage areas and finished goods.
Improve process stability - Detect changing humidity conditions before they affect drying, coating, printing or manufacturing performance.
Reduce condensation risk - Monitor high-humidity and near-condensing environments with probes designed for demanding conditions.
Control static electricity - Maintain suitable humidity in electronics, cleanrooms, printing and other static-sensitive areas.
Support HVAC efficiency - Measure room, duct and outdoor humidity for reliable building and ventilation control.
Maintain compliant records - Use data loggers and continuous monitoring systems where traceable environmental records and alarms are required.
Need help selecting a humidity meter or transmitter?
Selection should be based on the expected humidity and temperature range, pressure, mounting arrangement, response time, output signal, data-recording requirements and calibration needs. Contact Seacom with your application details for product and model selection.
The Vaisala Indigo520 Supervisor manages up to 100 compatible compact humidity and temperature probes through one host unit. It provides local visibility for the maintenance team and Modbus TCP communication for data centre BMS integration.
Two daisy chains: Up to 50 probes per chain.
5-inch touchscreen: View measurements, probe status and alerts.
Web interface: Supports commissioning and configuration.
Malaysia project support: Contact Seacom for probe selection and installation requirements.
Expected availability: early 2027. Enquire with Seacom for configuration and delivery confirmation.
The Vaisala HMP110 is a high-accuracy humidity and temperature probe designed for demanding equipment integration, environmental chambers, data loggers, incubators and controlled-environment applications.
It provides ±1.5% RH accuracy, a 0–100% RH range, −40 °C to +80 °C temperature measurement, a chemically resistant HUMICAP 180R sensor and analog or Modbus RTU output options.
The Vaisala XMP10 Series comprises compact humidity and temperature probes offering accuracy levels up to ±1% RH and ±0.1 °C for demanding HVAC, data-centre and critical-environment applications.
The probes feature analog or Modbus RTU outputs, a standard M8 connector, an IP65-rated body and compatibility with Vaisala Origo10 modular HVAC transmitters.
The Vaisala HMT370EX provides intrinsically safe humidity and temperature measurement with HMP-series probes. The new DMP370 configuration combines the HMT370EX transmitter with a DMP37X DRYCAP® probe for low-dew-point measurement in hazardous locations.
HMP probes for relative humidity and temperature
DMP370 dew-point measurement from −70 to +10 °C Td/f
Two two-wire 4–20 mA outputs
Certified configurations for hazardous gas and dust areas, up to Zone 0 / 20
Detachable probes and traceable calibration
DMP370 availability: Vaisala plans first deliveries for Q1 2027. Contact Seacom for configuration and project lead time.
The Vaisala HMK15 is a portable, power-free humidity calibrator for checking and adjusting humidity probes and transmitters with saturated salt references.
Suitable for laboratory work and on-site humidity checks
The compact Vaisala HM40 Series provides reliable humidity and temperature spot checks for HVAC, construction, warehouses, laboratories, museums and industrial applications.
The Vaisala PTU300 combined barometric pressure, relative humidity and temperature in one transmitter. The series is discontinued and has been replaced by a suitable Indigo520 barometric-pressure configuration with an application-specific HMP probe.
Legacy three-in-one pressure, humidity and temperature transmitter
PTU301, PTU303, PTU304, PTU305, PTU307 and PTU308 variants
Former applications include laboratories, meteorology and semiconductor measurement
Current replacement platform: Indigo520 with barometric-pressure measurement
Humidity probe selected according to mounting and process conditions
Existing wiring, outputs and process connections require migration review
The Vaisala HMT120 and HMT130 provide accurate, stable humidity and temperature measurement for cleanrooms, laboratories, data centres and demanding HVAC applications.
Product transition: HMT120/HMT130 are expected to be phased out. For new projects, the Vaisala Origo10 is the recommended replacement platform.
The Vaisala HM70 was a handheld meter for humidity and temperature spot checks, field measurements, data logging and verification of installed Vaisala instruments. It is discontinued and replaced by the Vaisala Indigo80 handheld indicator with an HMP80 probe.
Legacy MI70 handheld indicator with HMP75, HMP76 or HMP77 probe
Relative-humidity measurement from 0 to 100 %RH
Probe-dependent temperature measurement from −70 to +180 °C
Numerical and graphical display with portable data recording
Current replacement: Indigo80 with HMP80N or HMP80L
HMP80N for general measurements; HMP80L for extended temperature reach
The Vaisala HMW90 Series provides high-accuracy humidity and temperature measurement for demanding indoor HVAC and controlled-environment applications.
Humidity accuracy up to ±1.7% RH
Analog or Modbus RTU output models
Optional display and configurable relay
Replaceable measurement module with calibration certificate
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