COMET H7530 – WebSensor Temperature, Humidity, Pressure, Dew Point + 2 Relay Outputs

COMET H7530 – Ethernet Sensor for Temperature –30 to +80 °C, Humidity, Pressure, Dew Point + 2 Relay Outputs

The COMET H7530 is a professional Ethernet sensor with integrated high‑precision sensors for temperature, relative humidity, and barometric pressure – plus two powerful relay outputs. As a true remote thermometer‑hygrometer‑barometer with control function, it is the ideal solution for building automation, climate chambers, warehouses, clean rooms, production monitoring, greenhouses, or any application where precise measurement and direct control (fans, alarms, heating, humidifiers, etc.) are required.

The high‑precision capacitive polymer humidity sensor and the excellent barometric pressure sensor ensure outstanding accuracy and long‑term stability. The device measures temperature up to +80 °C and humidity from 0 to 100 %RH. In addition to the primary values, the H7530 automatically calculates all important humidity parameters: dew point, absolute humidity, specific humidity, mixing ratio, and specific enthalpy – all accessible directly via the web interface or Modbus TCP.

The two relay outputs (max. 50 V / 2 A / 60 VA) can be freely configured by thresholds, alarms, or binary states – ideal for direct control of fans, valves, signal lights, or emergency shutdowns. The large dual‑line LCD displays all measured values and relay statuses. Through Ethernet, the sensor integrates seamlessly into networks, with direct connectivity to COMET Cloud (3 months free, then 1 credit per year) for charts, exports, alarms, and remote access via app or browser. Alternatively, Modbus TCP, SNMP, JSON, or XML can be used for your own BMS/SCADA/IoT integration.

The robust housing and operating temperature range from –30 to +80 °C make the H7530 a reliable partner for demanding long‑term operation – indoors or outdoors. Optionally, it can be powered via PoE – a single cable for both data and power.

Why the COMET H7530 is the professional sensor with relays:

• 3‑in‑1: temperature + humidity + barometric pressure – with premium barometric sensor
• 2 relay outputs – 50 V / 2 A – for direct control
• Ethernet interface – direct network connection
• COMET Cloud ready – 3 months free, then low‑cost plan
• Modbus TCP, SNMP, JSON, XML – open to third‑party systems
• Large dual‑line LCD – shows values + relay status
• Highest precision – Temp. ±0.4 °C | Humidity ±2.5 %RH | Pressure ±1.3 hPa
• All humidity parameters integrated – dew point directly available
• Remote alarm function – E‑mail, SNMP Trap, Syslog
• PoE optional – power + data over one cable

Technical Data H7530:

• Temperature range: –30 to +80 °C (±0.4 °C)
• Humidity: 0 to 100 %RH (±2.5 %RH from 5–95 % at 23 °C)
• Dew point: –60 to +80 °C (±1.5 °C at T < 25 °C and RH > 30 %)
• Barometric pressure: 600 to 1100 hPa (±1.3 hPa at 23 °C within 800–1100 hPa)
• Resolution: 0.1 °C / 0.1 %RH / 0.1 hPa
• Relays: 2 × max. 50 V / 2 A / 60 VA
• Interface: Ethernet (RJ45)
• Cloud: COMET Cloud (3 months free)
• Protocols: WWW, Modbus TCP, SNMPv1, SOAP, XML
• Alarm protocols: E‑mail, SNMP Trap, Syslog
• Power supply: 9–30 V DC (PoE optional)
• Operating temperature: –30 to +80 °C
• Protection rating: IP30
• Warranty: 3 years

Perfectly suited for:

• Building automation and BMS systems
• Data centers and server rooms
• Clean rooms and pharmaceutical production
• Food storage and cold rooms
• Museums, archives, and repositories
• Process and production monitoring with control output
• Climate chambers and drying systems
• Meteorological stations

Installation & Commissioning – completed in minutes

Mount the device, connect the network and power cables, wire the relays – done! The integrated web interface guides you through setup and relay configuration. With COMET Cloud you are online within seconds – no server required.

Summary:

• Measurement of ambient temperature, relative humidity, and air pressure with two relay outputs
• Humidex display
• The H7530 sensor is designed for online monitoring of temperature and relative humidity in non‑aggressive environments
• Three binary inputs allow detection of two‑state signals
• Other devices can be controlled via the two relay outputs
• The high‑precision capacitive polymer sensor ensures excellent long‑term calibration stability and maximum accuracy
• Measurement values are converted into additional humidity parameters: dew point temperature, absolute humidity, specific humidity, mixing ratio, and specific enthalpy.

Scope of Delivery:

• H7530
• User manual
• Traceable calibration certificate
• Free TSensor software for transmitter configuration
• COMET Cloud for 3 months
• Power supply not included