Watteco BoB Assistant EU868 ATEX Zone 2

The Watteco BoB Assistant EU868 is a battery-powered LoRaWAN sensor interface engineered for industrial data acquisition in ATEX Zone 2 hazardous areas. Its strongest capability is the combination of two configurable analog inputs (0-10V or 4-20mA) and two digital inputs, enabling seamless integration of legacy sensors into LoRaWAN networks without compromising safety or reliability.

Advantages

Certified for use in explosive atmospheres (II 3 G Ex ic IIC T4 Gc), this device ensures safe operation in oil & gas, chemical, and pharmaceutical environments. The internal 3.6V Li-SOCl2 battery delivers up to 10 years of autonomy, drastically reducing maintenance visits. NFC and downlink configuration allow remote parameter adjustments, while the IP65-rated PC/ABS enclosure withstands dust and water jets, making it suitable for harsh industrial settings.

Suitable for

• Monitoring analog sensors (pressure, level, temperature) in Zone 2 hazardous areas
• Counting pulses from flow meters or energy meters
• Detecting state changes in dry contacts (door switches, limit switches)
• Retrofitting existing wired sensors into wireless LoRaWAN infrastructure
• Applications requiring long battery life and minimal maintenance

Key specifications

• LoRaWAN Class A, EU868 frequency band
• 2 analog inputs: 0-10V or 4-20mA, 12-bit resolution
• 2 digital inputs: dry contact, pulse counter, state change
• ATEX certification: II 3 G Ex ic IIC T4 Gc (Zone 2)
• Battery: replaceable 3.6V Li-SOCl2, up to 10 years life
• IP65 protection, PC/ABS housing
• Operating temperature: -20°C to +60°C
• Configuration via NFC or LoRaWAN downlink
• Internal antenna, wall or DIN rail mounting (optional accessory)
• CE and LoRaWAN Alliance certified

Recommendations

Ideal for system integrators and facility managers seeking a robust, certified solution to bring analog and digital sensor data into LoRaWAN networks in hazardous locations. Pair with a LoRaWAN gateway and network server for complete IoT monitoring.