The Vaisala Indigo300 is a rugged industrial transmitter for one Vaisala Indigo-compatible smart probe, providing local measurement display and up to three configurable analog outputs.
Its corrosion-resistant IP66 metal enclosure, flexible probe mounting and interchangeable probe design make Indigo300 suitable for humidity, temperature, dew point, CO2, moisture in oil and other demanding industrial measurements.
The Vaisala Indigo300 is the intermediate model in the Indigo transmitter range. It connects one interchangeable Vaisala smart probe and provides three configurable analog outputs in a corrosion-resistant IP66 metal enclosure.
Indigo300 is particularly suitable when a project needs more rugged construction than Indigo200 but does not require the Ethernet, web interface or dual-probe capabilities of the flagship Indigo500 Series.
| Transmitter | Position | Connected Probes | Main Outputs | Best Fit |
|---|---|---|---|---|
| Indigo200 | Standard | One | Analog or Modbus RTU model; 2 relays | Normal industrial measurement |
| Indigo300 | Intermediate | One | 3 analog outputs | Rugged metal installation with analog signals |
| Indigo510 | Simplified flagship | One | 2 isolated analog outputs, Ethernet and Modbus TCP | Premium single-probe integration |
| Indigo520 | Full flagship | Two simultaneously | 4 isolated analog outputs, 2 relays, Ethernet and Modbus TCP | Advanced dual-probe systems |
Important: Indigo300 is an analog-focused transmitter. Choose Indigo200/Indigo202 when Modbus RTU and relays are more important than metal construction, or Indigo510/520 when Ethernet and Modbus TCP are required.
| Feature | Specification |
|---|---|
| Connected Probes | One Vaisala Indigo-compatible smart probe |
| Display | Numerical and graphical colour display for up to three parameters; non-display version available |
| Analog Outputs | Three configurable current or voltage outputs |
| Current Modes | 4–20 mA or 0–20 mA, scalable |
| Voltage Modes | 0–1 V, 0–5 V, 0–10 V or 1–5 V, scalable |
| Output Accuracy | ±0.1% of full scale at +20 °C |
| Output Isolation | Not galvanically isolated |
| Power | 15–30 V DC or 24 V AC ±10% |
| Ingress Protection | IP66 |
| Housing | Corrosion-resistant aluminium |
| Specification | Value |
|---|---|
| Operating Temperature with Display | -20 °C to +60 °C |
| Operating Temperature without Display | -40 °C to +60 °C |
| Operating Humidity | 0–100% RH |
| Maximum Operating Altitude | 5,000 m |
| Dimensions | Approximately 161 × 134 × 43.5 mm |
| Weight | Approximately 1.2 kg |
Seacom Process Instruments supplies and supports the Vaisala Indigo300 transmitter in Malaysia. Contact our team for probe selection, analog-output scaling, display options, mounting arrangements, cables and commissioning support.
Download |
.
The Vaisala HPP270 Series provides stable, repeatable measurement for demanding vaporized hydrogen peroxide bio-decontamination processes.
The Vaisala HMP3 is a high-accuracy, field-maintainable probe for industrial HVAC, air-handling units, cleanrooms, paint booths and environmental chambers.
The Vaisala HMP7 is designed for continuously humid, rapidly changing and near-condensing environments. Probe heating helps prevent condensation while maintaining reliable process measurement.
The Vaisala HMP8 provides high-accuracy humidity and temperature measurement in compressed air, refrigerant dryers and pressurised industrial processes up to 40 bar.
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.
The Vaisala MMP8 provides continuous online measurement of dissolved moisture and temperature in transformer oil, lubrication oil, hydraulic fluid and other liquid hydrocarbons.
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.
The Vaisala GMP251 is an intelligent probe for stable percentage-level carbon-dioxide measurement in incubators, controlled-atmosphere storage and demanding industrial applications.
The Vaisala GMP252 is an intelligent standalone probe for stable ppm-level carbon-dioxide measurement in demanding HVAC, refrigeration, agriculture and industrial applications.
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.
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.
The Vaisala HMP5 provides high-accuracy humidity and temperature measurement in ovens, dryers, kilns and other processes operating at temperatures up to +180 °C.
The Vaisala DRYCAP® Dew Point and Temperature Probe DMP7 is designed for accurate low-humidity measurement where installation space is limited.
The Vaisala Indigo80 is a robust handheld indicator and data logger for industrial spot checks, process diagnostics, field calibration and measurement data analysis.
.
The Vaisala HMM100 provides reliable humidity measurement and a configurable analog output for integration into environmental chambers and OEM equipment.
The Vaisala XMW85 Series provides reliable indoor CO2, humidity and temperature measurement for demand-controlled ventilation, smart buildings and indoor air-quality monitoring.
All models support Modbus RTU over RS-485, with two-in-one and three-in-one measurement configurations and optional metric or non-metric displays.
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 GMW90 Series provides stable wall-mounted carbon-dioxide and temperature measurement, with optional humidity, for demanding HVAC and building-automation applications.
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.
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.
The Vaisala HMT370EX provides humidity, temperature and moisture measurement in hazardous areas containing potentially explosive gases or dust, with certified configurations for operation up to Zone 0 and Zone 20.
The Vaisala Indigo80 is a robust handheld indicator and data logger for industrial spot checks, process diagnostics, field calibration and measurement data analysis.
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 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 Indigo200 Series is the standard transmitter platform for one interchangeable Indigo-compatible smart probe, providing local display and practical automation-system connectivity.
Sekonic ST-50 (ST-50A) is microprocessor based thermohygrograph. Apart from measuring and recording temperature and relative humidity, it also has large LCD display and alarm output. Remote application is applicable with its electronic remote sensor.
The Vaisala Indigo300 is a rugged industrial transmitter for one Vaisala Indigo-compatible smart probe, providing local measurement display and up to three configurable analog outputs.
Its corrosion-resistant IP66 metal enclosure, flexible probe mounting and interchangeable probe design make Indigo300 suitable for humidity, temperature, dew point, CO2, moisture in oil and other demanding industrial measurements.