RS485 PH3 Temperature and Humidity Gas Sensor 3-in-1 0-1000ppm ModBus RTU

Product Specification

RS485 PH3 Temperature and Humidity Gas Sensor 3-in-1 0-1000ppm ModBus RTU Industrial Gas Detector

Product Introduction:
The RS485 Phosphine (PH₃) Temperature and Humidity Sensor is an intelligent transmitter integrating gas detection and environmental monitoring, designed for industrial safety, agricultural production, grain storage, and environmental protection applications. Equipped with a high-sensitivity electrochemical sensing element and a high-performance microprocessor, it delivers real-time, accurate monitoring of phosphine gas concentration, ambient temperature, and humidity.
 
Core advantages:

• 3-in-1 Output: Simultaneously measures PH₃ concentration (0~1000ppm, 0.1ppm resolution), temperature (-40~+80°C, ±0.3°C accuracy), and humidity (0~99.9%RH) – one device, multiple functions.
• Standard ModBus-RTU Protocol: RS485 digital interface with standard ModBus-RTU communication, compatible with PLCs, industrial controllers, and data acquisition systems for seamless integration.
• Wide Voltage & Flexible Deployment: Supports DC 5~28V wide input, adaptable to various on-site power sources. Wall-mounted waterproof housing ensures easy installation and high protection level for harsh environments.
• Fast Response & Reliable: 2-second data update interval for real-time monitoring; electrochemical sensor life up to 2 years with long-term stability.
• Flexible Calibration: Supports zero-point calibration for on-site adjustment; configurable device address and baud rate for multi-device networking.

 
 
PH3 Sensor Specification:

 
Packaging:

Single gross weight: 0.600 KG
Single package size: 23X20X5 cm
 
 
 
 
Product Description:

 
Application:

• Grain Storage Fumigation: Real-time PH₃ monitoring for pest control and stored grain safety.
• Agricultural Production: Greenhouse cultivation & pesticide residue monitoring to protect crop environments.
• Industrial Safety & Environmental Protection: Emission detection and toxic gas leak warning in chemical/metallurgical plants.
• Cold Chain & Warehouse Management: Simultaneous temp/humidity monitoring for air quality and safety in enclosed spaces.

 
 
Certifications:

1.We are a leading gas sensor manufacturer and exporter in China, with over 10 years of professional experience in the industry.
 
2.Our PH3 gas sensor products have obtained CE and ROHS certifications, fully meeting international quality and environmental standards.
 
3.We adopt advanced production technology and strict quality control systems to ensure the high precision, stability and reliability of each PH3 gas sensor.
 
4.Our PH3 gas detection solutions are widely applicable to multiple scenarios, including industrial safety monitoring, indoor air quality management and automotive emission testing.
 
5.Backed by a professional R&D team and comprehensive after-sales service, we have built long-term cooperative relationships with clients from Europe, Asia, the Americas and other regions.
 
 
Production Process:

 
 
Why choose us:

1. Strong R & D: 30+ Senior experts and highly educated personnel formed a R & D team, heavy investment, master a number of core technologies and patents.
2. Professional and effective solutions: for smart environmental protection, agriculture and other fields, to provide customized compound networking solutions.
3. Full range of products: covering the whole industry chain products from data collection to platform services to meet diverse needs.
4. Excellent quality: we have perfect quality control system, strictly quality control each production link, low defective rate.
5. Good service: 7×24 hours fast response, Professional pre-sale, sale, after-sales team support.