Digital Temperature and Humidity Sensor NK210 | Intelligent Temperature & Humidity Transmitter

Brand：NOIKE-AH
Model：NK210 Series

Specification

Product Overview

The Digital Temperature and Humidity Sensor NK210 is an intelligent environmental monitoring device designed for accurate and stable temperature and humidity measurement in industrial and commercial applications. Featuring a high-precision sensing element and intelligent signal processing, it delivers reliable long-term performance while supporting multiple communication methods for modern monitoring systems.

The NK210 Series offers 4–20 mA, RS485 (Modbus RTU), and optional GPRS, LoRa, or NB-IoT wireless communication, enabling flexible integration with PLCs, SCADA systems, IoT platforms, and remote monitoring networks. The built-in LCD display provides real-time temperature and humidity readings while simultaneously transmitting measurement data.

Available with either an integrated probe or a split-type probe with customizable cable lengths, the NK210 can be installed in a wide range of indoor monitoring environments where accurate temperature and humidity control is required.

Product Features

High-precision temperature and humidity measurement
LCD display for real-time environmental data
Optional 4–20 mA, RS485 (Modbus RTU), GPRS, LoRa, and NB-IoT outputs
Supports UDP, TCP, MQTT, and CoAP communication protocols (wireless models)
Optional integrated or split-type probe
Customizable probe cable lengths
Compact wall-mounted design for easy installation
Long-term stable measurement performance
Protocol and interface customization available

Applications

Industries

Industrial Automation
Manufacturing
Building Management
Environmental Monitoring
Smart Facilities

Typical Applications

Pump rooms
Equipment rooms
Factory workshops
Exhibition halls
Indoor environmental monitoring

Technical Specifications

Parameter	Specification
Output Options	4–20 mA / RS485 / GPRS / LoRa / NB-IoT
RS485 Protocol	Modbus RTU
Wireless Protocols	UDP / TCP / MQTT / CoAP
Supply Voltage	9–28 VDC
Humidity Range	0–100% RH
Temperature Range	TS1: -20°C to 80°C / TS2: -20°C to 120°C / Custom
Temperature Accuracy	±0.2°C (25°C)
Humidity Accuracy	±3% RH (5–90% RH)
Resolution	0.1°C / 0.1% RH
Long-term Temperature Stability	<0.2°C/year
Long-term Humidity Stability	<0.5% RH/year
Response Time	Temperature: 5 s / Humidity: 8 s (1/e, 63%)
Installation	Wall-mounted
Probe Options	Integrated / Split-type

Available Models

Model	Output
TH210-A	4–20 mA
TH120-R	RS485 (Modbus RTU)
TH120-G	GPRS
TH120-LR	LoRa
TH120-NB	NB-IoT

Probe Options

Integrated probe
Split-type probe (1 m)
Split-type probe (3 m)
Split-type probe (5 m)
Custom cable length available

Measurement Range Options

TS1: -20°C to 80°C / 0–100% RH
TS2: -20°C to 120°C / 0–100% RH
Customized measuring range available

Why Choose the Digital Temperature and Humidity Sensor NK210 ?

Accurate environmental monitoring is essential for maintaining stable operating conditions, protecting equipment, and supporting intelligent facility management. The NK210 combines high-precision sensing, flexible communication options, and long-term stability to provide dependable temperature and humidity monitoring across a wide range of applications.

Multiple Communication Options

Choose from 4–20 mA, RS485, GPRS, LoRa, or NB-IoT outputs to match different automation and remote monitoring systems.

High Measurement Accuracy

The sensor provides temperature accuracy better than ±0.2°C and humidity accuracy better than ±3% RH, helping maintain reliable environmental monitoring.

Supports Smart IoT Integration

Wireless models support UDP, TCP, MQTT, and CoAP, making integration with cloud platforms and industrial IoT systems more convenient.

Flexible Installation

Available with integrated or remote probes and customizable cable lengths, allowing installation according to different site requirements.

Reliable Long-Term Operation

Designed with stable sensing technology and low long-term drift, the NK210 supports continuous environmental monitoring in industrial and commercial applications.

Application Case

Environmental Monitoring for Equipment Rooms and Industrial Facilities

Maintaining stable temperature and humidity conditions is important for ensuring the reliable operation of industrial equipment and electrical systems. The NK210 Digital Temperature and Humidity Sensor can be installed in equipment rooms, pump stations, factory workshops, or exhibition facilities to continuously monitor environmental conditions.

The LCD display provides real-time temperature and humidity readings, while the selected communication interface transmits measurement data to a PLC, building management system (BMS), SCADA platform, or cloud-based IoT platform. When combined with remote monitoring systems, environmental data can be collected continuously to support facility management, preventive maintenance, and centralized monitoring.

With support for 4–20 mA, RS485, GPRS, LoRa, and NB-IoT, together with optional integrated or split probes, the NK210 offers a flexible solution for environmental monitoring in industrial automation, smart buildings, utility facilities, and manufacturing environments.

Frequently Asked Questions (FAQ)

1. What does the NK210 measure?

The NK210 measures both temperature and relative humidity, displaying the values locally and transmitting them through wired or wireless communication.

2. Which output signals are available?

Available output options include:

4–20 mA
RS485 (Modbus RTU)
GPRS
LoRa
NB-IoT

3. Which communication protocols are supported?

Wireless versions support:

UDP
TCP
MQTT
CoAP

RS485 models support Modbus RTU.

4. Can I choose different probe types?

Yes. The NK210 is available with either an integrated probe or a split-type probe, with optional cable lengths of 1 m, 3 m, 5 m, or customized lengths.

5. What temperature ranges are available?

The standard ranges include:

-20°C to 80°C
-20°C to 120°C

Customized measuring ranges are also available.

6. What is the measurement accuracy?

Temperature accuracy: ±0.2°C (25°C)
Humidity accuracy: ±3% RH (5–90% RH)

7. Where is the NK210 commonly installed?

Typical installations include pump rooms, equipment rooms, factory workshops, exhibition halls, and other locations requiring continuous environmental monitoring.

8. Are customized solutions available?

Yes. Protocol messages, communication interfaces, measuring ranges, probe cable lengths, and product configurations can be customized according to application requirements.

Optional Services

Customized communication protocols and interface development
Customized measuring ranges
Customized probe cable lengths
Instrument customization according to site requirements
Installation and commissioning support

Industries Served

The NK210 Series is suitable for a wide range of industries, including:

Petroleum and Petrochemical
Natural Gas
Machinery Manufacturing
Electric Power
Metallurgy
Building Materials
Food Processing
Pharmaceutical Manufacturing
Agriculture
Environmental Protection