+86 189 8978 2810

+86 189 8978 2810

ELH101 series temperature and humidity transmitter

Case Quantity
Minimum : 0 Maximum : Unlimited

Optional LCD Display – An LCD display is available for real-time temperature and humidity readings, featuring clear unit indication and a convenient backlight for easy viewing in low-light environments.

Multiple Output Options – Supports RS485, 0–10 VDC, and 4–20 mA output options, providing flexible signal transmission for different control systems and industrial applications.

Flexible Temperature Sensor Options – Available with either a digital temperature sensor or RTD (Resistance Temperature Detector), allowing users to select the sensing technology according to their application requirements.

IP65 Protection Rating – The IP65-rated enclosure provides reliable protection against dust and water jets, helping ensure stable operation in humid and demanding industrial environments.

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Application

HVAC & Building Management Systems (BMS)

Monitors temperature and humidity in commercial buildings, offices, and HVAC systems to support automatic ventilation, air conditioning, and indoor environmental control.

Agricultural Greenhouse Monitoring

Continuously monitors greenhouse temperature and humidity, helping maintain optimal growing conditions and improve crop growth and production efficiency.

Laboratory & Clean Room Environmental Monitoring

Provides accurate temperature and humidity measurements for laboratories, clean rooms, and other controlled environments where stable environmental conditions are essential.

Industrial Automation & Textile Applications

Integrates with industrial control systems through RS485, 0–10 VDC, or 4–20 mA outputs for real-time environmental monitoring in manufacturing and textile production environments.

Warehouse & Storage Environment Monitoring

Monitors temperature and humidity in warehouses, storage rooms, and other facilities to help maintain suitable storage conditions and protect temperature- and humidity-sensitive materials.

Description

Description Background

The ELH101 Series Temperature & Humidity Transmitter is designed for accurate and reliable monitoring of ambient temperature and relative humidity in industrial and commercial environments. It features an IP65-rated waterproof junction box and sealed wiring points, combined with multiple layers of moisture protection for stable operation in humid environments. A built-in polymer filter helps isolate dust and impurities from the sensing element, protecting the sensor, maintaining measurement accuracy, and extending service life. The high-precision control circuit board also provides power overvoltage protection and strong anti-interference performance for stable and dependable operation.

The ELH101 offers flexible configuration options to meet different application requirements. An optional LCD display provides clear real-time readings with unit indication and backlight for convenient viewing, while output options include RS485, 0–10 VDC, and 4–20 mA for easy integration with monitoring and control systems. Users can also choose between a digital temperature sensor and RTD temperature sensor according to their measurement needs. The durable ABS housing provides excellent electrical insulation, high toughness, and good aging resistance, making the transmitter suitable for long-term use in demanding environments.

Features

01DEPENDABLE
Features an IP65-rated waterproof junction box and sealed wiring points with multiple layers of water-resistant protection, providing reliable operation in humid and moisture-prone environments.
IP65 Waterproof Protection
IP65 Waterproof Protection
02EFFICIENT
The high-quality polymer filter helps block dust and impurities from reaching the sensing element, improving measurement accuracy while protecting the sensor and extending its service life.
Built-In Polymer Filter
Built-In Polymer Filter
03SECURE
Equipped with a high-precision main control circuit board with power overvoltage protection and strong anti-interference performance, ensuring stable and reliable temperature and humidity measurements.
High-Precision Control Circuit
High-Precision Control Circuit
04CONVENIENT
Made from high-quality ABS material, the housing offers excellent electrical insulation, high toughness, and strong resistance to aging, making it suitable for long-term use in demanding environments.
Durable ABS Housing
Durable ABS Housing

Technical Details

Product Type:

Temperature & Humidity Transmitter

Product Model:

ELH101 / ELH102 / ELH103

Material:

ABS Housing + PC Probe + Polymer Filter

Size:

See attached drawing

Type:

Wall-mounted / Duct Mounted / Split Type

Operating Temperature:

-20°C ~ 60°C

Humidity Range:

0~100%RH

Humidity Accuracy:

±2%RH / ±3%RH

Temperature Accuracy:

±0.2°C ~ ±0.4°C @25°C

Output Signal:

RS485 Modbus 0–10VDC 4–20mA

Power Supply:

15–35VDC 24VAC ±20%

Display:

No Display LCD Display (Optional)

Response Time:

≤10 Seconds

Protection Rating:

IP65

Working Humidity:

5~95%RH (Non-condensing)

Installation Type:

ELH101 Wall Mounted ELH102 Duct Mounted ELH103 Split Type

Accessories

We reserve the right to make technical alterations without prior notice.
Dimensions

What is the ELH series temperature and humidity transmitter used for?

The ELH series temperature and humidity transmitter is designed for measuring environmental temperature and humidity and converting the measured values into standard output signals for monitoring and automation systems. Typical applications include: Greenhouses and agricultural monitoring HVAC systems Laboratories Cleanrooms Industrial workshops and warehouses Environmental monitoring systems

What models are available in the ELH series?

The ELH series provides multiple installation structures: ELH101 – Wall-mounted type ELH102 – Duct type ELH103 – Split type Different installation structures are suitable for different application environments.

What output signals does the transmitter support?

The ELH series supports multiple output options: RS485 / Modbus communication 0–10V voltage output 4–20mA current output These outputs make the transmitter compatible with PLCs, controllers, building automation systems, and industrial monitoring equipment.

What temperature and humidity range can it measure?

Typical specifications include: Humidity Range: 0–100% RH Temperature Range: Standard range: 0°C to 50°C Optional customization: -20°C to +60°C Different versions may provide different measurement ranges.

How accurate is the ELH transmitter?

Typical accuracy specifications include: Humidity Accuracy: ±2% RH / ±3% RH Temperature Accuracy: ±0.3°C typical This makes the transmitter suitable for applications requiring reliable environmental monitoring.

Is the transmitter waterproof and dustproof?

Yes. The ELH series adopts an IP65 protection design with multiple sealing structures for improved environmental resistance. Advantages include: Dust resistance Water resistance Suitable for humid environments Better long-term stability

What material is the housing made of?

The housing is made of ABS material combined with PC protective components. Advantages include: Good insulation performance Strong durability Anti-aging performance Lightweight construction

Does it have a display screen?

Optional display versions are available. Available options include: LCD display LED backlit display Display versions make on-site monitoring easier.

How fast is the response speed?

Typical response time is: ≤10 seconds Fast response helps improve monitoring performance and automation control efficiency.

Is it resistant to interference?

Yes. The ELH series includes: Strong anti-interference design Over-voltage protection Stable digital sensing technology These features help improve long-term stability in industrial environments.

What operating environment is the transmitter suitable for?

Typical operating conditions include: Temperature: -20°C to +60°C Humidity: 5–95% RH (non-condensing) The transmitter is suitable for both indoor and industrial applications.

What should buyers confirm before purchasing?

Before ordering, buyers should confirm: Installation type (wall-mounted / duct / split type) Required output signal Temperature measurement range Display requirements Power supply requirements Communication requirements Quantity and customization needs Confirming these specifications helps ensure compatibility with the actual monitoring system.

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