SM7310M 4-20mA Current Type Bracket Humidity Sensor

User Manual

File Version: V21.3.24

Product Overview

The SONBEST SM7310M is a 4-20mA current type bracket humidity sensor designed for easy integration with PLC, DCS, and other industrial instruments or systems for monitoring humidity levels. It features a high-precision sensing core and related devices, ensuring high reliability and excellent long-term stability. This sensor can be customized with various output methods including RS232, RS485, CAN, 4-20mA, DC0~5V/10V, ZIGBEE, Lora, WIFI, and GPRS.

[Image Description: A bracket-mounted humidity sensor with a flexible black cable extending from its base. The sensor head is cylindrical with fins, and the bracket is grey plastic.]

Technical Parameters

Technical Parameter	Parameter Value
Brand	SONBEST
Humidity Measuring Range	0~100%RH
Humidity Accuracy	±3%RH @25°C
Communication Interface	Two-wire DC4~20mA
Power	DC12~24V 1A
Running Temperature	-40~80°C
Working Humidity	5%RH~90%RH

Wiring Instructions

Incorrect wiring can cause irreversible damage to the product. Please carefully wire the cable as follows in the case of power failure. After wiring, connect the cable to confirm correctness before use.

ID	Core Color	Identification	Note
1	Red	VCC	Power V+
2	BLACK	GND	Power negative electrode

In the case of broken wires, wire as shown in the table. If the product itself has no leads, the core color is for reference.

Disclaimer

This document provides all information about the product. It does not grant any license to intellectual property, nor does it express or imply any other means of granting intellectual property rights, such as statements of sales terms and conditions or other issues. No liability is assumed. Furthermore, Shanghai Sonbest Industrial Co., Ltd makes no warranties, express or implied, regarding the sale and use of this product, including suitability for specific uses, marketability, or infringement liability for any patent, copyright, or other intellectual property rights. Product specifications and descriptions may be modified at any time without notice.

Contact Us

Company: Shanghai Sonbest Industrial Co., Ltd
Address: Building 8, No.215 North east road, Baoshan District, Shanghai, China
Web: http://www.sonbest.com, http://www.sonbus.com
SKYPE: soobuu
Email: sale@sonbest.com
Tel: 86-021-51083595 / 66862055 / 66862075 / 66861077

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