3M ™ Versaflo ™ starter kit for EX-rated fan unit TR-819E is a practical package that is approved for zone 0 and is therefore suitable for areas where a potentially explosive atmosphere is expected and lasting during normal operation. The package is ready to use and contains everything you need to get started. The TR-819E package is approved for use with many different Versaflo S soft head peaks in the S-series and hard head peaks in the M-series, and is ATEX-certified and CE-approved. Convenient package that is ready to use EX-rated, Zone 0 Including a rechargeable lithium-ion battery with standard capacity Head top not included