Duct Humidity Sensor, RS485/0-5VDC

SKU: SUCH-TH-DUCT

$79.79

● Output signal RS485/0-5VDC/0-5VDC (NTC) ● Temperature range -40 ~ +80°C ● Humidity range 0-100%RH (relative humidity) ● Duct/wall mounted

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🕒 Delivery date: 6-12 days

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Overview
Specs
Application
FAQ
Reviews

Overview

Duct humidity sensor with RS485 and 0-5VDC outputs provides accurate and reliable monitoring of temperature and humidity in indoor environments, pipelines, and enclosures. With a compact structure, flexible wall-mount or duct installation options, and multiple output signals including RS485, 0–5VDC, and 0–5VDC (NTC), SUCH temperature and humidity sensor ensures easy integration into HVAC systems and industrial applications, indoor environments, pipelines, and enclosures.

Feature

Compact Design: Small and lightweight structure allows flexible installation without space limitations.
Dual Installation Options: Duct humidity sensor supports both wall-mounted and duct-mounted setups for indoor environments, pipelines, and enclosures.
Multiple Output Choices: Provides RS485, 0–5VDC, and 0–5VDC (NTC) outputs to meet diverse application requirements.
Durable Construction: ABS engineering plastic housing with protective design ensures resistance to dust and environmental stress.

Dimension

Duct humidity sensor size

Wiring

Duct humidity sensor wiring

Specs

Electrical Specifications

Output Type	RS485/0-5VDC/0-5VDC (NTC)
Supply Voltage	5-28VDC (RS485), 9-28VDC (0-5VDC), 5VDC ±0.25V (NTC)
Temperature Range	-40 ~ +80°C
Humidity Range	0-100%RH (relative humidity)
Humidity Output	0-5VDC (0.5-4.5VDC linear from 10%-90%RH, full output at 0-10%RH & 90-100%RH)
Temperature Output	NTC 10kΩ @ 25°C, B3435 (1%)
Load Resistance	≥100kΩ
Power Consumption	≤2 Hz response frequency, ~1.5 mA
Electrical Protection	Short circuit: permanent; Reverse polarity: no damage (no function); Insulation resistance ≥100MΩ, 500VDC; Dielectric strength 500VAC

Response Time	Without Filter	With Filter
Temperature Response Time	15s	55s
Humidity Response Time	15s	35s

Output	Power Consumption ≤0.008Us(W)	≤0.011Us(W)	≤0.015Us(W)
RS485			✓
0-5VDC		✓
0-5VDC (NTC)	✓

Note: Us = supply voltage.

Output	Minimum Output	Maximum Output
RS485	0	1650 / 1000
0-5VDC	0.001VDC	5VDC
0-5VDC (NTC)	0.1VDC	4.9VDC

Environmental Conditions

Operating Temperature	-40 ~ +85°C
Operating Humidity	10% ~ 90%RH (non-condensing, no frost)
Stability	±1%RH FS/year, ±0.2°C/year
Protection Rating	IP54
Response Speed	Temperature: 10°C step; Humidity: 10%RH step; Air velocity: 0.1 m/s

Mechanical Properties

Weight	≈187 g
Housing Material	ABS engineering plastic
Filter	Polyethylene, 50 μm
Cable Material	Φ3.2 polyethylene shielded cable, 4×0.12 mm² (XL07)
Mounting Accessories	ABS engineering plastic
Vibration Resistance	5g (20…2000 Hz), IEC60068-2-6 standard
Shock Resistance	500g / 1 ms, IEC60068-2-27 standard

Application

HVAC Systems

Ventilation Duct

Laboratory Climate Control Cabinet

FAQ

Q1: What is a duct humidity sensor? ❯

A duct humidity sensor is a device installed in air ducts or ventilation systems to monitor relative humidity and temperature. It provides real-time data for HVAC systems, ensuring efficient climate control and energy management.

Q2: How does it improve HVAC system performance? ❯

By providing precise humidity and temperature data, it helps regulate airflow, optimize energy consumption, and maintain comfortable indoor climates.

Q3: What maintenance does the sensor require? ❯

Routine cleaning of the filter and periodic inspection are recommended. In dusty environments, replacing the filter ensures long-term stability and accuracy.

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Duct Humidity Sensor, RS485/0-5VDC

Feature

Dimension

Wiring

Electrical Specifications

Environmental Conditions

Mechanical Properties

HVAC Systems

Ventilation Duct

Laboratory Climate Control Cabinet

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