Wall-mounted Temperature and Humidity Monitor for Ambient

This wall-mounted temperature and humidity monitor is used to continuously monitor ambient air temperature and humidity. It consists of a probe and a transmitter. The transmitter features temperature compensation and linearization circuitry, offering accurate measurements, stable operation, and a long service life.

The temperature and humidity meter strictly complies with explosion-proof specifications and is suitable for permanent installation in explosion-hazardous areas. It can be connected to a GRI alarm host, current acquisition card, and online data acquisition and monitoring software to form an online monitoring system. The monitoring system provides power to the transmitter and processes its output signal. Connections are made using 16AWG (1.5mm²) three-core shielded cable, with a maximum connection distance of 1000 meters.

★★★★★

  • Short delivery time
  • Better price
  • Customizable parameters

Features

  • This wall-mounted temperature and humidity monitor features a sturdy, flameproof housing suitable for use in a variety of indoor and outdoor environments.
  • A large LCD screen intuitively displays various parameters.
  • Temperature compensation and linearization circuitry ensure accurate measurements and stable operation.
  • The instrument has a long service life and includes reverse electrode protection.
  • The cable terminals accept cables ranging from 16-22AWG.
  • Fault detection has been added to the RS485 communication protocol.
  • The wall-mounted temperature and humidity monitor can be maintained on-site using a remote control without opening the housing.
  • It can be connected to any monitor that provides 12-36 VDC and can receive and process RS485 bidirectional data communication and analog 4-20 mA signals.

Specifications

Detection typeProcess Temperature and Humidity HUMI-T/C
Detection rangeTemperature: -40~125°C; Humidity 0~100% RH
ResolutionTemperature 0.1°C; Humidity 0.1% RH
Display modeLCD Display
Detection methodDiffusion Type
Detection accuracy≤±3%
Response time≤20 seconds (T90)
Recovery time≤20 seconds
Installation methodFixed, wall-mounted, diffused, and other installations
Linearity error≤±3%
Zero drift≤±3% (F.S./year)
Repeatability≤±3%
Signal output①4-20mA Signal: Standard 16-bit precision 4-20mA output chip, transmission distance 1km
②RS485 Signal: Standard MODBUS RTU protocol, transmission distance 2km
③Voltage Signal: 0-5V, 0-10V output, customizable
④Switch Signal: Standard with two relays, optional with a third relay. Relay contacts are passive, capacity 220VAC 3A/24VDC 3A
Transmission methodCable Transmission: 3-core and 4-core cables, suitable for long-distance transmission (1-2km) )
Receiving deviceUser computer, control alarm, PLC, DCS, etc.
Alarm methodOnsite audible and visual alarm, external alarm, remote controller alarm, computer data acquisition software alarm, etc.
Alarm settingsStandard two-level alarm; configurable alarm modes: conventional high and low alarm, and interval control alarm.
Electrical interface3/4″ NPT female thread and 1/2″ NPT female thread support two electrical connection methods.
Dimensions183 x 143 x 107 mm (L x W x H) 1.5 kg (net weight)
Wall-mounted-Temperature-and-Humidity-Monitor-RS485-wiring-diagram

Featured Applications

The wall-mounted temperature and humidity monitor supports RS485 and 4-20mA signals, making it suitable for building online temperature and humidity monitoring systems.

  • Enables ambient temperature and humidity monitoring.
  • Enables temperature and humidity alarms.
  • Enables temperature and humidity data logging.
  • Enables data analysis.
  • Enables mobile app monitoring.


This wall-mounted temperature and humidity meter can be used in industrial gas process control, boiler rooms, waste treatment plants, tunnel construction, oil pipelines, gas stations, underground gas pipeline maintenance, indoor air quality monitoring, hazardous area safety protection, aerospace, and equipment monitoring.

Technical Support

As a vital location for scientific research and experimental activities, the laboratory’s environmental conditions are crucial to the accuracy of experimental results and the stable operation of instruments. Temperature and humidity, two key factors influencing the laboratory environment, are directly related to the reliability of experimental data and the comfort of laboratory personnel.

Temperature and humidity sensors are placed in key locations in the laboratory to ensure comprehensive and accurate data. These sensors typically communicate with data acquisition units wirelessly or wired to accommodate different laboratory layout requirements.

Combined with device linkage control, the laboratory’s existing air conditioning, ventilation systems, heating equipment, and other equipment can be connected to the laboratory temperature and humidity monitoring system. Automatically adjust the air conditioning, humidifiers, and dehumidifiers based on preset conditions, achieving precise control of environmental parameters.

In pharmaceutical workshops and factories, strict temperature and humidity monitoring and management are essential. This temperature and humidity monitoring system can monitor temperature and humidity at multiple locations across a large area and transmit the data to a PC for storage and analysis. In the event of equipment anomalies, various alarms are issued to notify appropriate personnel.

This system is also suitable for use in cold storage, grain storage, food processing plants, GMP pharmaceutical plants, electronics plants, computer rooms, incubators, greenhouses, laboratories, and other locations with strict temperature and humidity requirements.

The wall-mounted Temperature and Humidity Monitor sensor module is replaceable and comes pre-calibrated. The detector directly recognizes the sensor model and calibration parameters, making maintenance easy. Dual 4-20mA and RS485 outputs facilitate dual analog output of temperature and humidity. It can be remotely controlled using an infrared remote controller and features power, fault, and alarm indicators. Its triple waterproof design makes it suitable for use in harsh environments such as pipe corridors.

Sino-Inst specializes in gas detection and alarm systems, including flammable, explosive, and toxic gas detection and alarm equipment, environmental monitoring and analysis instruments, and water quality analyzers. We can provide complete industrial safety and environmental monitoring system solutions. We are your ideal supplier of on-site testing instruments and system solutions.

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