Product Description
This portable PH3 (Phosphine) gas detector is developed for detecting highly toxic phosphine gas in industrial and storage scenarios. PH3 is widely used for grain fumigation and pest killing, improper operation will cause toxic gas leakage and threaten personnel safety.
Equipped with high‑performance electrochemical sensor, the unit achieves fast response and stable detection data. Real‑time LCD shows gas concentration; sound‑light‑vibration triple alarm will trigger once exceeding preset threshold. Built‑in large‑capacity storage supports 100,000 groups detection data recording for checking and exporting. Explosion‑proof compact handheld design makes it easy to carry for on‑site field work.
It provides reliable safety protection for fumigation operators, grain depot staff and chemical workers, effectively avoiding safety accidents caused by phosphine gas leakage.
Features
- Adopt high‑precision electrochemical PH3 sensor, rapid response
- Real‑time LCD screen display gas concentration value
- Sound, light and vibration triple alarm reminder
- Can record 100,000 groups of data for later review
- Explosion‑proof design, fit for harsh industrial working site
- Low battery reminder, lightweight handheld portable structure

Technical Parameter:
| Gas type | PH3 Phosphine |
| Working principle | Electrochemical sensor |
| Measuring range | 0-5ppm、20ppm、50ppm、100ppm、1000ppm. Support customized |
| Resolution | 0.01ppm 0.1ppm or customized |
| Concentration unit | %LEL, %Vol, ppb, ppm, mg/m3 |
| Precision | ±≤3%F.S |
| Repeatability | ≤±2% |
| Zero drift | ≤±1%(F.S/year) |
| Sampling mode | Pump-suction sampling (Flow rate of 300ml/minute) |
| Data storage | Can record 100000 group of measuring data |
| Response time | T90≤30s (different gas sensors have different response times) |
| Recovery time | ≤20s |
| Pre-heating time | ≤60s |
| Display | LCD dot matrix display of the Gas type, gas concentration unit, gas concentration data, time, battery status, data storage status; |
| Working temperature | -20℃~50℃(Special requirements need to be customized) |
| Working humidity | 10%-95%RH(non-condensing) |
| Working pressure | 86Kpa~106Kpa |
| Explosion-Proof grade | Ex ib IIC T4 Gb |
| Protection grade | IP54 |
| Alarm mode | Audible, visual. Two-color LED alarm light, sound≥75dB@25cm |
| Shell material | Aluminum alloy metal housing, ABS+PC |
| Power supply | 3.7VDC, 2600mAh,Rechargeable lithium battery
DC5V USB charger |
| Charge time | ≤6 hours |
| Working time | ≥12 hours (Normal temperature electrochemical sensor) |
| Power consumption | 0.5W |
| Dimensions | 200.5*64.8*35.5mm (L*W*H) |
| Weight | 0.46KG |
| Accessory | Box, instruction, USB charger , data line |
| Quality standard | GB15322.1-2003,GB3836.1-2010,GB3836.2-2010,GB3836.4-2010,GB12358-2006 |
Applications
- Grain depot, grain silo phosphine fumigation safety monitoring
- Grain and warehouse pest control fumigation site detection
- Chemical plant phosphine production workshop leakage inspection
- Pharmaceutical manufacturing production site gas monitoring
- Metallurgical processing workshop on‑site safety patrol
- Fumigation service company field operation detection
- Storage warehouse residual phosphine gas test
- Laboratory chemical reaction safety monitoring
Company profile
We Henan Oceanus is located in Henan, a land with a long history and profound cultural heritage, has been dedicated to the research, development, production, and sales of Gas detection system and Environment equipments since its establishment. With exquisite technology and outstanding quality, we have won widespread recognition in the global marketing.

01. Business areas
As a leader in the field of Gas detector and Air quality monitor system, we Henan Oceanus will be continued to expand its business scope and provide customers around the world with customizable Air quality monitor system of various types and specifications.
02. Values and ideas
Our company upholds the core values of integrity and quality service, focusing more on friendship with our customers. We always adhere to integrity management, customer-centered, and provide a full range of pre-sales, sales, and after-sales services to ensure that customers can be worry-free when using our products.
03. Global Service Network
We have a comprehensive global service network, offering timely, professional pre-sales consultation, after-sales service, and technical support for overseas users. Regardless of where users are located, they can enjoy our attentive and thoughtful service.
04. Customer Service
With excellent products and services, Henan Oceanus Gas detector and Air quality monitor system have been exported to more than 100 countries around the world and have won widespread praise.

Our Service Processes:
Pre-sales Consultancy → Confirmation of order → Production → Multi-Channel Shipping → After-sale Services
After-sale Services
12 months warranty for main unit. Technical support, calibration guidance and spare parts supply are available all the time. Customized detection range and signal output can be provided according to customer requirements.
If any inquiry, pls contact us: Email: info@china-oceanus.com
Our address:
No. 2206, Wenhua Chanye Building Block B, No. 77, Shangding Road, Zhengzhou Area, Henan Pilot Free Trade Zone
Email: info@china-oceanus.com
Telephone: +86 0371 60998169
Mobile/Whatsapp: +86 15981942832
Mobile/Whatsapp: +86 13673683950




