Vaisala

The Vaisala DMT153 provides traceable low-dew-point measurement for ultra-dry industrial processes. It is the current replacement for the DMT152, with modern analog, Modbus and Vaisala Indigo connectivity.

• Calibrated dew-point range from −80 to −20 °C Td/f
• Dew-point accuracy up to ±2 °C Td/f
• Operating pressure from vacuum to 50 bar absolute
• Analog outputs or RS-485 with Modbus RTU
• Compatible with Vaisala Indigo transmitters and Indigo80
• DRYCAP® sensor with automatic calibration and sensor purge

The Vaisala HMD60 Series provides high-accuracy humidity and temperature measurement for demanding HVAC ducts and light-industrial applications.

• Humidity accuracy up to ±1.5% RH
• Temperature accuracy up to ±0.1 °C
• Analog, Modbus RTU and BACnet MS/TP options
• Robust IP66 metal enclosure

The Vaisala DMP1 Dew Point and Temperature Probe provides fast, dependable low-humidity measurement for dry rooms and moisture-sensitive manufacturing areas.

• Dew point measurement range from −70 to +80 °C Td/f
• Fast response for detecting changes across large dry rooms
• Modbus RTU communication or integration with Vaisala Indigo transmitters
• Connect to Indigo80 for portable display, data logging, diagnostics and field calibration
• Suitable for battery production, semiconductor manufacturing and controlled dry environments

The Vaisala Indigo80 is a robust handheld indicator and data logger for industrial spot checks, process diagnostics, field calibration and measurement data analysis.

• Connect and display measurements from up to two compatible probes
• Measure humidity, temperature, dew point, carbon dioxide and other industrial parameters
• Use with HMP80, DMP80 and GMP80P portable measurement probes
• Record up to approximately 5.5 million real-time measurement values

The Vaisala GMD110 measures carbon dioxide directly inside ventilation ducts for precise HVAC control and demand-controlled ventilation.

• CO₂ measurement range from 0 to 10,000 ppm
• Accuracy of ±40 ppm from 0 to 3000 ppm
• 4–20 mA, 0–5 V, 0–10 V or Modbus RTU output options
• Analogue scaling of 0–2000, 0–5000 or 0–10,000 ppm
• Fast response with less than two minutes to full specification
• Heated CARBOCAP® sensor head helps prevent condensation
• IP65 enclosure for demanding duct installations
• Traceable calibration certificate included

The Vaisala DRYCAP® Dew Point and Temperature Probe DMP7 is designed for accurate low-humidity measurement where installation space is limited.

• Short 41 mm probe for remote installation in tight spaces
• Dew point measurement range from −70 to +80 °C Td/f
• Pressure-tight installation for processes from 0 to 10 bar
• Use with Modbus RTU, an Indigo transmitter or the portable Indigo80 handheld indicator
• Suitable for dry rooms, compressed air, industrial drying and semiconductor equipment

The Vaisala HMP5 provides high-accuracy humidity and temperature measurement in ovens, dryers, kilns and other processes operating at temperatures up to +180 °C.

• Humidity accuracy up to ±0.8% RH
• Temperature accuracy up to ±0.1 °C
• −70 to +180 °C probe-head measurement range
• Standalone Modbus RTU or Vaisala Indigo transmitter operation

The Vaisala HMP1 is a high-accuracy, interchangeable humidity and temperature probe for indoor spaces. It connects directly to an Indigo200 or Indigo300 transmitter to create a compact wall-mounted measurement system.

• Humidity accuracy up to ±1.0% RH
• Temperature accuracy up to ±0.2 °C
• 0–100% RH and −40 to +60 °C measurement ranges
• Modbus RTU and full Vaisala Indigo compatibility

The Vaisala HMP4 provides high-accuracy humidity and temperature measurement in compressed air, breathing air, industrial gases, vacuum systems and other processes operating at pressures up to 100 bar.

• Operating pressure below 100 bar, including vacuum applications
• Humidity accuracy up to ±0.8% RH
• Temperature range from -70 °C to +180 °C
• Standalone Modbus RTU or connection to an Indigo transmitter

The Vaisala RFL100 uses secure, long-range VaiNet wireless technology to monitor temperature, relative humidity and carbon dioxide with the AP10 Access Point and viewLinc Continuous Monitoring System.

• At least 50 m typical indoor wireless range
• Up to 32 RFL100 data loggers per AP10
• 30 days of local measurement memory
• Approximately 18 months of battery operation for temperature and humidity monitoring

The Vaisala GMP343 is a rugged, high-accuracy carbon-dioxide probe for outdoor monitoring, ecological research, soil respiration, plant-growth chambers and demanding OEM applications.

• Selectable CO₂ ranges from 0–1000 ppm to 0–2%
• Diffusion-aspirated or flow-through sampling models
• Accuracy up to ±(3 ppm + 1% of reading)
• Temperature, pressure, humidity and oxygen compensation
• RS-232, RS-485, 4–20 mA, 0–2.5 V or 0–5 V outputs
• Raw and numerically filtered measurement data
• IP67 probe housing with the cable connected
• Compatible with MI70 for portable display and logging

The Vaisala GMW80 Series provides dependable, cost-efficient room measurement for demand-controlled ventilation and indoor air-quality applications.

• CO₂ measurement ranges up to 2000 or 5000 ppm, depending on model
• Temperature measurement from 0 to +50 °C on selected models
• Optional relative-humidity measurement from 0 to 95 %RH
• Voltage, current, relay, Pt1000 and Modbus RTU options
• Display or colour CO₂ indicator available on selected models
• Stable Vaisala CARBOCAP® technology for continuously occupied buildings
• Quick installation with correct CO₂ readings immediately after start-up

The Vaisala GM70 was a portable carbon-dioxide meter for diffusion measurements, pump sampling, data logging and field checking fixed CO₂ instruments.

• Discontinued product; not recommended for new purchases
• GMP221 probes for percentage-level CO₂ up to 20%
• GMP222 probes for ppm-level CO₂ up to 10,000 ppm
• GMH70 diffusion handle or GM70PUMP sampling system
• MI70 indicator with numerical, graphical and logging functions
• Used for field checking compatible fixed Vaisala CO₂ instruments
• Use Vaisala Indigo80 for new portable measurement systems

The Vaisala GMD20 Series was designed for carbon-dioxide measurement inside ventilation ducts and demand-controlled ventilation systems.

• Discontinued legacy product; not recommended for new projects
• Nominal CO₂ measurement range from 0 to 2000 ppm
• GMD20 without display and GMD20D with local display
• 0–20 mA, 4–20 mA and 0–10 V analogue outputs
• Optional relay or LonWorks® interface on applicable configurations
• IP65 electronics enclosure for duct installations
• Use Vaisala GMD110 for new installations

The Vaisala HMM170 provides accurate and stable humidity and temperature measurement for demanding environmental chambers, including vacuum and pressurised applications.

• Humidity accuracy up to ±1.0% RH
• Temperature measurement from −70 to +180 °C
• Modbus RTU and three configurable analog outputs
• Probe heating, sensor warming and chemical-purge options

The Vaisala TMI110 provides high-accuracy temperature measurement for data-centre chilled-water systems, HVAC cooling and heating circuits, and ventilation ducts.

• ±0.1 °C accuracy at +20 °C
• Fast response time of less than 8 seconds
• 4–20 mA or Modbus RTU output options
• IP65 enclosure with traceable calibration certificate

The Vaisala CAB100 centralises differential-pressure transmitters, analog inputs and interface components for cleanroom and industrial monitoring with the viewLinc Continuous Monitoring System.

• Preconfigured cabinet for viewLinc monitoring systems
• CAB100A and higher-capacity CAB100B models
• Differential pressure, analog input and hazardous-area options
• IP54 or IP66 enclosure protection, depending on model

The Vaisala MGP262 continuously measures methane slip and carbon dioxide in offgas from biomethane-upgrading processes. Its in-situ design provides direct, always-on measurement without a separate sampling system.

• Optimised for low-level methane measurement in CO₂-rich offgas
• CH₄ measurement range from 0–5 vol-%
• CO₂ measurement range from 0–100 vol-%
• Heated optical measurement for demanding and humid process conditions
• Three isolated 4–20 mA outputs and RS-485 Modbus RTU
• Ex-certified construction for direct installation in hazardous process areas

Ask Seacom about the MGP262

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
• Supports 11, 33, 75, 85 and 97 %RH nominal reference points
• Typically stabilises in 10 to 30 minutes when temperatures are equal
• Certified, ready-dosed salt packages are available
• Basic and universal chamber lids suit several probe diameters
• No electrical power or external humidity generator required

The Vaisala PDT101 and PDT102 provide precise low differential-pressure measurement for cleanrooms, isolation rooms, regulated facilities, data centres and air-handling systems.

• PDT101 accuracy up to 0.40% of span
• PDT102 high accuracy up to 0.25% of span
• 4–20 mA or voltage output configurations
• Compatible with Vaisala viewLinc monitoring solutions

The Vaisala HMM100 provides reliable humidity measurement and a configurable analog output for integration into environmental chambers and OEM equipment.

• 0–100% RH measurement range
• Relative-humidity or dew-point output
• Current and voltage output options
• Plastic or stainless-steel probes for temperatures up to +180 °C

Vaisala DL1000, DL1400, DL1016 and DL1416 temperature data loggers provide reliable, traceable monitoring for refrigerators, freezers, cold rooms, incubators and regulated facilities.

• Scheduled for future discontinuation; confirm availability before specifying
• Current replacement platform: Vaisala VDL200 with suitable smart probes
• Two- or four-channel configurations
• External probe range down to −90 °C
• Onboard memory and a typical 10-year battery life

The Vaisala DL1700 is a four-channel thermocouple data logger for continuous monitoring and validation work at extreme temperatures.

• Overall application range from −240 to +1760 °C, depending on thermocouple type
• Accepts J, K, T, E, R and S thermocouples
• Four thermocouple inputs plus an internal cold-junction reference
• Works with Vaisala viewLinc for monitoring, alarms and compliant reporting

The Vaisala GMW90 Series provides stable wall-mounted carbon-dioxide and temperature measurement, with optional humidity, for demanding HVAC and building-automation applications.

• Carbon-dioxide measurement from 0 to 5000 ppm
• CO₂ accuracy up to ±(30 ppm + 2% of reading)
• Temperature measurement from −5 to +55 °C
• Optional HUMICAP® relative-humidity measurement from 0 to 95 %RH
• Voltage, current or Modbus RTU output models
• Display and CO₂ status-indicator options
• Field-exchangeable calibrated measurement modules
• Traceable three-point CO₂ calibration certificate included

The Vaisala GMP231 is an OEM carbon-dioxide probe designed for accurate measurement and permanent wall installation in life-science incubators.

• CO₂ measurement range from 0 to 20%
• Measurement performance optimized around 5% CO₂
• Sensor head withstands heat sterilisation at +180 °C
• At least 120 specified +180 °C sterilisation cycles
• Internal temperature and pressure measurement for compensation
• Heated sensor head helps prevent condensation
• I²C, Vaisala RS-485 protocol and scalable 0–20 mA options
• Four-point traceable CO₂ calibration certificate included

Vaisala viewLinc provides continuous monitoring, alarming and reporting for temperature, humidity, CO₂, differential pressure and other critical parameters in GxP-regulated and demanding industrial environments.

• Supports FDA 21 CFR Part 11 and EU GMP Annex 11 requirements
• Secure audit trails, access control, alarms and reports
• Ethernet, PoE, Wi-Fi, VaiNet and Modbus connectivity
• Scalable from a few monitoring points to thousands

The Vaisala GMP252 is an intelligent standalone probe for stable ppm-level carbon-dioxide measurement in demanding HVAC, refrigeration, agriculture and industrial applications.

• CO₂ measurement range from 0 to 10,000 ppm
• Measurement up to 30,000 ppm with reduced accuracy
• Accuracy of ±40 ppm from 0 to 3000 ppm
• Compensation for temperature, pressure, humidity and oxygen
• Heated sensor head helps prevent condensation
• 0–20 mA, 4–20 mA, 0–5 V, 0–10 V and RS-485 output options
• Standalone Modbus RTU operation or connection to an Indigo transmitter
• Compatible with Vaisala Indigo80 and Insight PC software

The Vaisala GMP251 is an intelligent probe for stable percentage-level carbon-dioxide measurement in incubators, controlled-atmosphere storage and demanding industrial applications.

• CO₂ measurement range from 0 to 20% CO₂
• Accuracy of ±0.1% CO₂ at 5% CO₂
• Compensation for temperature, pressure, humidity and oxygen
• Heated sensor head helps prevent condensation
• 0–20 mA, 4–20 mA, 0–5 V, 0–10 V and RS-485 output options
• Standalone Modbus RTU operation or connection to an Indigo transmitter
• Compatible with Vaisala Indigo80 and Insight PC software
• IP65 probe body with traceable calibration certificate

The Vaisala DRYCAP® Dew Point and Temperature Probe DMP8 provides reliable low-humidity measurement in pressurised pipelines with adjustable installation depth.

• Dew point measurement range from −70 to +80 °C Td/f
• Designed for pressurised processes from 0 to 40 bar absolute
• Adjustable insertion depth with ISO R 1/2 or NPT 1/2 process connection
• Optional ball-valve kit permits insertion and removal without shutting down the process
• Use with Modbus RTU, an Indigo transmitter or the portable Indigo80 handheld indicator

The Vaisala DRYCAP® Dew Point Probe DMP6 measures humidity directly inside very hot industrial processes using a robust probe and passive cooling set.

• Direct in-line measurement at process temperatures from +100 to +350 °C
• Dew point measurement range from −25 to +100 °C Td/f
• Passive cooling requires no power, cooling water or moving components
• Built-in Modbus RTU or integration with Vaisala Indigo transmitters
• Connect to Indigo80 for portable display, diagnostics, configuration and field calibration

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.

• Direct in-line measurement at process temperatures up to +180 °C
• Dew point measurement range from −40 to +100 °C Td/f
• Long probe reaches through insulation and thick process walls
• Built-in Modbus RTU or integration with Vaisala Indigo transmitters
• Connect to Indigo80 for portable display, diagnostics, configuration and field calibration

The Vaisala MMP8 provides continuous online measurement of dissolved moisture and temperature in transformer oil, lubrication oil, hydraulic fluid and other liquid hydrocarbons.

• Measures water activity from 0 to 1 a_w, relative saturation, temperature and ppm_w
• Dry-end accuracy up to ±0.01 a_w or ±1%RS
• Temperature measurement from −40 to +180 °C
• Available in standard 262 mm and long 448 mm probe versions
• Adjustable insertion depth with ISO 1/2 or NPT 1/2 process fittings
• Standalone Modbus RTU or connection to Vaisala Indigo transmitters

The Vaisala TMP1 is a robust temperature-only probe for demanding industrial processes, pharmaceutical applications and calibration laboratories.

• Temperature measurement range from −70 to +180 °C
• Accuracy up to ±0.1 °C at +23 °C with standard calibration
• Pt100 RTD Class F0.1 sensor according to IEC 60751
• Standalone Modbus RTU over RS-485
• Compatible with Vaisala Indigo200, Indigo300, Indigo500 and Indigo80
• Traceable two-point calibration certificate included
• Ask Seacom about the suitable TMP1 configuration

The Vaisala Indigo200 Series is the standard transmitter platform for one interchangeable Indigo-compatible smart probe, providing local display and practical automation-system connectivity.

• Indigo201 with three analog outputs and two relays
• Indigo202 with Modbus RTU and two relays
• Colour display with numerical and graphical views
• IP65 enclosure for industrial measurement applications

The Vaisala HMP9 combines a miniature 5 mm probe head with fast-response, high-accuracy humidity and temperature measurement for tight spaces and rapidly changing environments.

• Humidity accuracy up to ±0.8% RH
• Temperature accuracy up to ±0.1 °C
• −40 to +120 °C probe-head measurement range
• Standalone Modbus RTU or Vaisala Indigo transmitter operation

The Vaisala HMP8 provides high-accuracy humidity and temperature measurement in compressed air, refrigerant dryers and pressurised industrial processes up to 40 bar.

• Humidity accuracy up to ±0.8% RH
• Operating pressure from vacuum to 40 bar
• Adjustable insertion depth with two probe lengths
• Optional ball valve for insertion and removal under process conditions

The Vaisala HMP7 is designed for continuously humid, rapidly changing and near-condensing environments. Probe heating helps prevent condensation while maintaining reliable process measurement.

• Humidity accuracy up to ±0.8% RH
• Probe heating for condensation prevention
• −70 to +180 °C probe-head measurement range
• Standalone Modbus RTU or Vaisala Indigo transmitter operation

The Vaisala HMP3 is a high-accuracy, field-maintainable probe for industrial HVAC, air-handling units, cleanrooms, paint booths and environmental chambers.

• Humidity accuracy up to ±0.8% RH
• Temperature measurement from −40 to +120 °C
• Field-replaceable filter and HUMICAP sensor option
• Standalone Modbus RTU or Vaisala Indigo transmitter operation

The Vaisala HMP155 provides stable humidity and temperature measurement for automatic weather stations, road-weather systems, airports, research sites and demanding outdoor monitoring.

• Relative-humidity measurement from 0 to 100 %RH
• Operating range from −80 to +60 °C
• HMP155A with two analogue voltage outputs
• HMP155D with RH voltage output and passive four-wire Pt100 temperature
• HMP155E with RS-485 digital output
• Optional warmed probe, chemical purge and additional temperature sensor

The Vaisala Indigo500 Series provides flagship industrial measurement integration: choose Indigo510 for a simplified single-probe system or Indigo520 for full dual-probe capability.

• Indigo510: one probe and two isolated analog outputs
• Indigo520: two probes, four isolated outputs and two relays
• Ethernet web interface and Modbus TCP communication
• Rugged IP66 and NEMA 4 metal enclosure

Vaisala HUMICAP® MMT310 Series provides continuous online measurement of moisture and temperature in transformer, lubrication and hydraulic oils.

The compact transmitter measures water activity (a_w) or relative saturation (%RS), showing how close the oil is to forming free water. Optional ppm calculation is available for mineral transformer oil and configured oil types.

• Models MMT317 and MMT318
• Water activity range: 0 to 1 a_w
• Temperature range: -40 to +180°C
• Two configurable analogue outputs and RS-232C
• Up to 40 bar with MMT318 and ball-valve installation
• IP66 compact transmitter enclosure
• Traceable calibration certificates included

The Vaisala MMT330 Series provided continuous measurement of moisture and temperature in transformer oil, lubrication oil, hydraulic fluid and other liquid hydrocarbons.

• Discontinued series; not recommended for new installations
• Legacy MMT332, MMT337 and MMT338 probe configurations
• Measures water activity, relative saturation, temperature and calculated ppm
• Graphical display, data logging and versatile analogue or digital outputs
• Used for oil-condition monitoring, dryer control and free-water risk detection
• Use Vaisala MMP8 with an Indigo transmitter for new installations

The Vaisala MM70 was a portable meter for spot-checking water activity and temperature in transformer, lubrication and hydraulic oils.

• Discontinued product; not recommended for new purchases
• Legacy MI70 handheld indicator with MMP78 moisture-in-oil probe
• Water-activity measurement from 0 to 1 a_w
• Temperature measurement from −40 to +100 °C
• Direct insertion through a ball valve without draining the process
• Numerical display, trend graph and portable data logging

The compact Vaisala WXT530 Series measures wind, precipitation, barometric pressure, air temperature and relative humidity in selectable combinations for industrial and environmental weather monitoring.

• Choose one to six essential weather parameters
• Ultrasonic wind and acoustic precipitation measurement
• No moving parts and low maintenance requirements
• Modbus RTU, SDI-12, ASCII and NMEA communication options

The Vaisala HPP270 Series provides stable, repeatable measurement for demanding vaporized hydrogen peroxide bio-decontamination processes.

• HPP271 measures vaporized H₂O₂ concentration
• HPP272 adds relative saturation, relative humidity and temperature
• H₂O₂ measurement range from 0 to 2000 ppm
• Accuracy of ±10 ppm or 5% of reading, whichever is greater
• Two 4–20 mA outputs or RS-485 with Modbus RTU
• IP65 stainless-steel construction with Vaisala PEROXCAP® technology
• Compatible with Vaisala Indigo transmitters and Indigo80

The Vaisala PTB330 provides accurate, stable barometric-pressure measurement for professional meteorology, aviation, maritime systems, laboratories and demanding environmental applications.

• 500 to 1100 hPa or extended 50 to 1100 hPa pressure range
• Accuracy up to ±0.10 hPa at +20 °C
• Choice of one, two or three Vaisala BAROCAP® pressure sensors
• Optional graphical display with trends and measurement history
• RS-232 with optional RS-485, RS-422 and analogue outputs
• WMO pressure trend and tendency calculations
• IP66 housing without display for demanding installations

The Vaisala PTB330TS is a portable, battery-operated reference instrument for accurate barometric-pressure checks in the field and laboratory.

• PTB330 digital barometer with Vaisala BAROCAP® technology
• Handheld MI70 indicator with graphical display and data logging
• 500 to 1100 hPa barometric-pressure range
• Class A pressure accuracy for demanding reference measurements
• Optional HMP155 probe for humidity and temperature measurement
• Available with one, two or three pressure modules
• Supplied in a durable weatherproof transport case

The Vaisala PTB110 is a compact, low-power barometer for accurate atmospheric-pressure measurement and integration with data loggers, weather stations and environmental monitoring systems.

• Selectable barometric-pressure ranges from 500 to 1100 hPa
• Accuracy up to ±0.3 hPa at +20 °C
• 0–2.5 V, 0–5 V or frequency-output options
• Less than 4 mA current consumption
• External trigger supports power-saving operation
• Compact DIN-rail-mountable construction

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.

• Measures dew point, pressure and temperature
• Calculates SF6 density, normalised pressure and moisture in ppm
• RS-485 communication with Modbus RTU
• Contact Seacom for availability and replacement assessment

The Vaisala HMT360 Series was an intrinsically safe transmitter platform for humidity, temperature and moisture measurement in hazardous areas. It is discontinued and replaced by the Vaisala HMT370EX with an application-specific probe.

• HMT361 wall mounting → HMP371
• HMT363 ducts and confined spaces → HMP373
• HMT364 high pressure and vacuum → HMP374
• HMT365 high temperature → HMP375
• HMT367 high humidity → HMP377
• HMT368 pressurised pipelines → HMP378

The Vaisala HMT330 Series was a flagship industrial transmitter platform for humidity, temperature and calculated moisture parameters. It is discontinued and replaced by an Indigo500 transmitter with the HMP probe selected for the application.

• HMT331 wall mounting → HMP1 with Indigo500
• HMT333 ducts and tight spaces → HMP3 or HMP9 with Indigo500
• HMT334 high pressure and vacuum → HMP4 with Indigo500
• HMT335 high temperature → HMP5 with Indigo500
• HMT337 high humidity → HMP7 with Indigo500
• HMT338 pressurised pipelines → HMP8 with Indigo500