Illuminance, Temperature and Humidity Sensor Module (Ethernet) (RoHS)


Illuminance, Temperature and Humidity Sensor Module (Ethernet) (RoHS)

  Price:  $289.00  


The iSN-201 series modules can be used for measuring indoor illumination, temperature and humidity. A wide range of interface connections can be selected to suit individual needs, including RS-485/Ethernet/ Bluetooth/ Wi-Fi models. The various models provide support for the DCON and Modbus RTU/TCP protocols, and can be easily integrated into existing HMI/SCADA/ central control systems.

The screw-free quick-connect connector and the DIP and rotary switches make the modules easy to install, repair, and maintain. The white minimalist exterior design ensures that it easy to match with interior decoration.

  • Illuminance Measurement Range: 0 to 20,000 Lux
  • Temperature Measurement Range: -20 to +60°C
  • Humidity Measurement Range: 0 to 100% RH
  • Supports the DCON and Modbus RTU/TCP Protocols
  • Supports the MQTT Protocol for Ethernet Interface
  • Includes RS-485/Ethernet Communication Interfaces
  • Includes redundant power inputs: PoE (IEEE 802.3af, Class 1) and DC input
  • Supports Web Confi guration and Firmware Update via Ethernet
  • Compatible with IEEE802.11b/g/n standards (iSN-201-WF only)
  • Support infrastructure and limit-AP modes for wireless networks (iSN-201-WF only)
  • Ceiling Mounting


The WISE-5231 and electric curtain combination with the illumination meter iSN-201-E can easily be setup through a simple web interface and logic control. The two-way interlocking mode integrates the electric curtains and the Building Management System (BMS), and collects environmental sensing data simultaneously. When detecting the indoor temperature or humidity rises or the intensity of sunshine is strong, it will automatically activate the pulling motion of the electric curtain, or enable a personalized scenario to control all curtains or specifi c curtain combinations in the home environment. In addition, the user can edit the scenario and set up the curtain automation at scheduled times.


Reference & Support


Illuminance Measurement


0 to 20,000 Lux


1 Lux


± 5%

Temperature Measurement

Measurement Range

-40 to +120°C

Fire Alarm

65°C (Programmable)




Typical: ± 0.5°C; refer to figure 2

Relative Humidity Measurement


0 to 100% RH


0.1% RH


Typical: ± 3% RH @ 20 ~ 80% RH; refer to figure 1

Relay Output




Power Relay, Form C

Max. Load Current

NO: 10 A @ 250 VAC
NC: 6 A @ 250 VAC

Load Wattage

Incandescent Bulb: 1500 W Max.; Fluorescent Lamp: 300 W Max.


Node Address

Hardware: 96 to 127 / Software: 1 to 255


DCON, Modbus RTU, Modbus TCP, MQTT

Wired Interface

Yes, RS-485 X 1 and Ethernet/PoE x1

Wireless Interface


Supported Standard


Wireless Mode


Wireless Security


Transmission Range


LED Indicators

LED Indicators

Yes,1 as Power, 1 as Alarm Indicator. 1 as Communication Indicator.

EMS Protection

ESD (IEC 61000-4-2)

± 4 kV Contact for each Terminal, ± 8 kV Air for Random Point

EFT (IEC 61000-4-4)

± 4 kV for Power Line

Power Requirements

Power Supply

10 to 48 VDC, PoE

Reverse Polarity Protection


Power Consumption

2 W



Ceiling/surface mounted

Protection Class


Dimensions (D x H)

O 150 mm x 53 mm


Operating Temperature

0 to +75°C

Storage Temperature

-30 to +80°C


10 to 90% RH, Non-condensing

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