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.


Features

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.


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.

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.