Product Description:

YJJ HSH-RM2M-P Indoor Wall-Mounted Temperature Humidity Sensor HVAC / Building Automation Control

Features:

I. Basic Information

Model: HSH-RM2M-P

Series: HSH-R (Wall-mounted Indoor Installation)

Purpose: Indoor air temperature and humidity monitoring (HVAC / Building Automation)

Installation: Surface-mounted / Concealed installation, standard 86 box

II. Key Parameters (25℃, 24VDC)

1. Measurement Range

Temperature: -10℃ ～ +60℃ 

Humidity: 0% RH ～ 95% RH (Non-condensing) 

2. Accuracy

Humidity: ±2% RH (20～80% RH); ±3% RH (Full range)

Temperature: ±0.3K @25℃ (PT1000) 

3. Output Signal

Humidity: 4-20mA

Temperature: 4-20mA

Temperature Sensor: PT1000 (Platinum Resistance) 

4. Electrical

Power Supply: 24VDC ±20%

Load: 4-20mA ≤ 500Ω 

Power Consumption: ≤70mA 

5. Response and Stability

Humidity Response: ≤45s 

Temperature Response: ≤7min 

Long-term Stability: ±1% RH / Year 

6. Mechanical and Environment

Protection: IP30 (Dust-proof, Finger-proof)

Shell: PC + ABS Flame-retardant (UL94-V0)

Operating Temperature: -15℃ ～ +60℃ 

III. Model Interpretation (Easy to Understand Configuration)

HSH-R: Indoor Wall-mounted Temperature and Humidity

M: Dual 4-20mA Output (Temperature and Humidity are independent current)

2: Humidity Accuracy **±2% RH**

P: Temperature Sensor PT1000

IV. Core Features

Standard Indoor Type: Wall-mounted 86 box, suitable for office buildings / hotels / offices

Dual Current Output: Temperature and Humidity independent 4-20mA, directly connected to PLC/DCS

PT1000 Temperature Measurement: Stable, Low drift, Strong anti-interference

±2% RH High Accuracy: Satisfies comfortable air conditioning and general clean rooms

Long-term Stability: Annual drift 1% RH, Long maintenance cycle

V. Typical Applications

Building Automation (BAS)

Office, Conference Room, Hotel Room, Shopping Mall Indoor Temperature and Humidity Monitoring

Air conditioning fresh air / return air linkage, energy saving control and comfort regulation

Commercial and Public Buildings

General wards of hospitals, corridors, clean areas auxiliary monitoring

Data Center Room Environment Monitoring (Combined with duct type)

Industrial Factory (Non-explosion-proof)

Indoor Environment Temperature and Humidity Recording of Electronics / Food / Pharmaceutical Workshops

Warehouse Temperature and Humidity Monitoring, Prevention of Condensation and Mold

VI. Difference from HSH-DM2M-P (Duct type)

HSH-RM2M-P: Indoor Wall-mounted, IP30, Slow response (Temperature 7min), Measuring indoor environment

HSH-DM2M-P: Duct insertion, IP65, Fast response (≤7s), Measuring duct airflow

Specifications: