Renke RS-CH2O-N01-2-5P-2-EX Formaldehyde Sensor (0-5ppm) - RS485/4-20mA/0-10V Output
Renke RS-CH2O-N01-2-5P-2-EX Formaldehyde Sensor (0-5ppm) - RS485/4-20mA/0-10V Output - Image 2
Renke RS-CH2O-N01-2-5P-2-EX Formaldehyde Sensor (0-5ppm) - RS485/4-20mA/0-10V Output - Image 3
SKU: SENS-0767
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Renke RS-CH2O-N01-2-5P-2-EX Formaldehyde Sensor (0-5ppm) - RS485/4-20mA/0-10V Output

₹9,269.00 (Inclusive of all taxes)
Out of Stock

The Renke RS-CH2O-N01-2-5P-2-EX is a high-precision electrochemical formaldehyde sensor module designed for continuous indoor air quality monitoring. It provides flexible analog and digital outputs (RS485, 4-20mA, 0-5V, 0-10V) for seamless integration with industrial PLCs, building automation systems, and cloud-based environmental monitoring platforms.

Features

  • Electrochemical sensing principle for 0-5 ppm formaldehyde (HCHO) detection.
  • High accuracy (±5% FS) with 0.01 ppm resolution and fast ≤35s response time.
  • Flexible output options: RS485 (Modbus), 4-20mA, 0-5V, and 0-10V for versatile system integration.
  • Wall-mount, waterproof housing suitable for harsh indoor and industrial environments.
  • Wide operating range: -20 to 50°C, 15-90% RH non-condensing, with excellent long-term stability (≤7% drift/year).

Out of stock

Description

The RS-CH2O-N01-2-5P-2-EX utilizes an advanced electrochemical sensing cell specifically tuned for formaldehyde (HCHO) gas. This technology provides high selectivity and sensitivity, ensuring reliable 24/7 monitoring with minimal cross-interference from other common volatile organic compounds. The sensor’s signal is conditioned by an onboard microprocessor for stable, linearized output across its full measurement range.

Designed for durability, the sensor features a robust, wall-mountable enclosure with waterproof construction, making it suitable for demanding applications in laboratories, manufacturing facilities, and HVAC systems. Its wide 10-30V DC supply voltage range and multiple output interfaces allow for direct connection to data loggers, SCADA systems, and custom microcontroller projects (e.g., Arduino, Raspberry Pi) via appropriate signal converters.

Key Features

  • Electrochemical HCHO-specific sensor with high repeatability (≤2%).
  • Multi-interface output: Selectable RS485 (Modbus RTU), 4-20mA current loop, 0-5V, or 0-10V voltage signal.
  • Optimized performance-to-cost ratio for continuous monitoring applications.
  • Durable construction with waterproof rating for reliable operation in varied indoor climates.
  • Optional high-visibility OLED display available for local, real-time concentration readout.
  • Low power consumption and stable performance across a broad temperature and humidity range.
  • Pre-calibrated for immediate use, with long sensor life and minimal maintenance required.

Applications

  • Continuous indoor air quality (IAQ) monitoring in offices, schools, and residential buildings.
  • Industrial safety and environmental monitoring in furniture manufacturing, chemical plants, and textile factories.
  • HVAC system integration for demand-controlled ventilation based on formaldehyde concentration.
  • Laboratory fume hood and workspace safety monitoring.
  • Building material and product off-gassing testing chambers and quality control.

Technical Specifications

Model NumberRS-CH2O-N01-2-5P-2-EX
Measurement GasFormaldehyde (HCHO)
Detection Range0 - 5 ppm
Resolution0.01 ppm
Accuracy±5% FS (at 1 ppm, 25°C, 50% RH)
Response Time (T90)≤ 35 seconds
Repeatability≤ 2%
Long-term Stability≤ 7% signal drift per year
Output SignalsRS485 (Modbus), 4-20mA, 0-5V, 0-10V (selectable)
Supply VoltageDC 10 - 30 V
Operating Temperature-20 to 50 °C
Operating Humidity15 - 90% RH (non-condensing)
Pressure Range91 - 110 kPa
Dimensions (L x W)115 mm x 110 mm
Weight126 g

Frequently Asked Questions

What output interfaces does this formaldehyde sensor support?

This sensor provides multiple selectable output options for flexible integration: RS485 communication using the Modbus RTU protocol for networked systems, a standard 4-20mA analog current loop for long-distance transmission, and 0-5V or 0-10V voltage outputs for direct connection to PLCs or data acquisition modules. The specific interface is typically configured via internal DIP switches or software commands.

What is the required power supply for the RS-CH2O-N01-2-5P-2-EX sensor?

The sensor operates on a wide-range DC power supply of 10 to 30 volts. This compatibility makes it suitable for use with common 12V, 24V, or regulated power adapters in industrial and building automation environments. Ensure the power source can provide sufficient current for the selected output load, especially when driving a 4-20mA loop.

How do I calibrate or maintain this electrochemical formaldehyde sensor?

The sensor is factory calibrated and ready for use. For long-term accuracy, it is recommended to perform a periodic zero-point calibration in a clean air environment. The electrochemical sensor cell has a typical lifespan of several years under normal operating conditions. Exposure to extreme contaminants or physical damage may necessitate sensor replacement.

Is this sensor suitable for outdoor use or in very humid conditions?

While the sensor features a waterproof wall-mounted design and operates in a broad humidity range (15-90% RH, non-condensing), it is primarily designed for indoor and sheltered industrial applications. For full outdoor exposure, additional protective enclosures may be required to shield it from direct rainfall, UV radiation, and temperature extremes beyond its -20 to 50°C operating range.

Package Includes

  • 1 x Renke RS-CH2O-N01-2-5P-2-EX Formaldehyde Sensor
  • 1 x Screw Set for wall mounting

Additional Information

Weight 0.126 kg
Dimensions 11.5 × 11 cm

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