ELH101 series temperature and humidity transmitter
High-precision temperature and humidity transmitter with digital sensor
Supports RS485/Modbus, 0–10V, and 4–20mA output signals
IP65 waterproof and dustproof protection design
Strong anti-interference performance for stable measurement
Optional LED backlit display for easy reading in dark environments
ABS housing with good insulation and durability
Protective probe filter improves accuracy and sensor lifespan
Fast response time ≤10 seconds
Suitable for industrial and environmental monitoring
Application
Cleanroom environmental monitoring
Laboratory temperature and humidity measurement
Agricultural greenhouse climate control
Textile industry environmental monitoring
Industrial ventilation and HVAC systems
Description
The ELH series temperature and humidity transmitter is a high-precision environmental monitoring device designed for reliable measurement in industrial and commercial environments. It integrates a digital temperature and humidity sensor with a transmitter and optional display for real-time monitoring. The device supports multiple signal outputs including RS485/Modbus, 0–10V, and 4–20mA, making it compatible with various automation and building control systems.
The transmitter features a durable ABS housing with excellent electrical insulation, strong toughness, and resistance to aging. Its IP65 protection rating with multiple waterproof sealing processes ensures stable performance in humid or dusty environments. A protective probe filter isolates dust and impurities, improving measurement accuracy and extending the service life of the sensor. The optional LED backlit display allows clear reading even in low-light conditions.
Features
High-precision digital temperature and humidity sensing
Dustproof and waterproof structure with IP65 protection rating
Strong resistance to electrical interference
Power supply over-voltage protection
Protective probe design isolates dust and impurities
Improves measurement accuracy and extends sensor life
ABS housing with excellent insulation and durability
LED backlight display for easy monitoring in dim environments
Technical Details
Models:
ELH101 – Wall-mounted temperature and humidity transmitter ELH102 – Duct type temperature and humidity transmitter ELH103 – Split type temperature and humidity transmitter
Humidity Sensor:
Digital sensor
Humidity Range:
0% – 100% RH
Humidity Accuracy:
±2% RH / ±3% RH @25°C
Temperature Sensor:
Digital sensor / thermal resistance sensor
Temperature Range:
0–50°C / -20–60°C (customizable)
Temperature Accuracy:
±0.3°C (0–60°C), ±0.2–0.4°C @25°C
Output Signals:
RS485 / Modbus 0–10 VDC (three-wire) 4–20 mA (two-wire)
Response Time:
≤10 s
Power Supply:
15–35 VDC / 24 VAC ±20% 19.5–35 VDC (RL = 500Ω) 9.5–35 VDC
Output Load:
Voltage / RS485 Type: >2 kΩ Current Type: ≤250 Ω
Display:
Optional LCD or LED display with unit indication and backlight
Housing Material:
ABS housing with PC probe and polymer filter
Optional Probe:
Stainless steel probe with sintered or stainless mesh filter
Working Environment:
-20°C to 60°C, 5% – 95% RH (non-condensing)
Protection Rating:
IP65
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