DF556 ATEX Pressure Liquid Level Sensor
DF556 ATEX Pressure Liquid Level Sensor
Explosion-Proof Immersed Pressure Measurement
DF556 ATEX provides pressure-based immersed liquid level measurement from 2.5 m to 15 m with ATEX explosion-proof and CE certification for hazardous-area tank monitoring. Orange ABS body with 304 stainless steel sensor, NB-IoT, LoRaWAN, Sigfox, 4G, and multi-tech wireless, three pipe thread sizes, and optional battery or external power.
Last updated: May 31, 2026
Customer Value
Built for hazardous-area tank monitoring where safety compliance is mandatory
ATEX + CE Certified
ATEX explosion-proof and CE certification for hazardous-area liquid storage tanks. Orange ABS body for clear visual identification.
High-Accuracy Pressure
0.5% FS accuracy with 1 mm resolution. 304 stainless steel sensor with PTFE cable for reliable immersed measurement from 2.5 m to 15 m.
Flexible Pipe Threads
Three sizes (1.5, 2, 2.25 inch) to adapt to existing tank inlets in hazardous-area installations with minimal modification.
Multiple Wireless + Protocols
NB-IoT, LoRaWAN, Sigfox, 4G, and multi-tech. TCP, MQTT, and custom protocol support with Python/JavaScript SDK.
Flexible Power Options
Optional 8500 mAh battery or external power supply for hazardous-area sites where battery replacement access is restricted.
Platform Integration
Dashboard, email/SMS/Telegram notifications, and customer platform integration with SDK support.
Hard Facts
Hard facts for product evaluation
Explosion-proof certification
Pressure measurement accuracy
Level resolution
Measuring range options
Waterproof protection rating
Weight with 2.5 m cable
Pipe thread: 1.5/2/2.25 inch
NB-IoT, LoRaWAN, Sigfox, 4G, Multi-tech
Applications
Hazardous-area tank monitoring for chemical, oil, and industrial sites
DF556 ATEX is suitable for projects where explosion-proof certification is required for tank level measurement, including chemical storage, oil and gas facilities, and industrial liquid handling.
Comparison
DF556 ATEX vs DF556 Standard
Choose between the ATEX explosion-proof and standard DF556 pressure liquid level sensor.
| Selection factor | DF556 ATEX (Orange) | DF556 Standard (Blue) |
|---|---|---|
| Body color | Orange ABS | Blue ABS |
| Certification | ATEX explosion-proof + CE | No explosion-proof certification |
| Primary application | Hazardous-area liquid storage tanks | General industrial tank monitoring |
| Measurement range | 2.5 m to 15 m | 2.5 m to 15 m |
| Accuracy | 0.5% FS / 1 mm | 0.5% FS / 1 mm |
| Wireless | NB-IoT, LoRaWAN, Sigfox, 4G, Multi-tech | NB-IoT, LoRaWAN, Sigfox, 4G, Multi-tech |
| Pipe thread | 1.5 / 2 / 2.25 inch | 1.5 / 2 / 2.25 inch |
| When to choose | Choose DF556 ATEX when explosion-proof certification is mandatory for hazardous-area tank compliance. | Choose DF556 Standard for general tank monitoring without hazardous-area requirements. |
Product Video
DF556 ATEX explosion-proof sensor demonstration
Watch the DF556 ATEX video. For the standard version, see the DF556 standard video.
Selection Guide
How to Choose the Right DF556 ATEX Configuration
Select based on hazardous-area classification, tank depth, inlet size, and network requirements.
Where to Buy
Request a DF556 ATEX project quotation
DF556 ATEX is sold by quotation. Share hazardous-area classification, tank depth, pipe thread size, and network preference so CNDINGTEK can confirm the configuration.
Useful inputs for faster quoting
- ATEX zone classification and hazardous substance type
- Tank depth, liquid type, and required measurement range
- Pipe thread size (1.5, 2, or 2.25 inch) and cable length
- Wireless network, power option, quantity, and delivery schedule
FAQ
Frequently Asked Questions about DF556 ATEX Pressure Liquid Level Sensor
DF556 ATEX vs Standard?
ATEX has explosion-proof + CE certification with orange ABS body. Standard has blue ABS body for general use. Same core specifications.
What hazardous areas can it be used in?
Certified for areas with flammable liquids, gases, or vapors. Confirm zone classification with CNDINGTEK.
Measuring range?
2.5 m to 15 m with standard 2.5 m. Custom cable lengths available for deeper tanks.
Which wireless versions?
NB-IoT, LoRaWAN, Sigfox, 4G (Asia/Europe/Global), and multi-tech. TCP, MQTT, custom protocols.
Pipe thread sizes?
1.5, 2, and 2.25 inch to adapt to existing tank inlets.
Power options?
Optional 8500 mAh battery or external power supply.
Special installation required?
Yes, ATEX zones require compliance with safety standards. Confirm with CNDINGTEK.
Standard or customized product?
Normally sold with ATEX + CE certification. Custom cable lengths available. Quotation-based pricing.
CNDINGTEK Support
Evaluate DF556 ATEX for your hazardous-area project
Share hazardous-area classification, tank depth, and network preference so we can confirm the DF556 ATEX configuration.