Elevate your crew's safety and coordination with the Notch Hookups featuring the SENA 33i Mesh Intercom. This premium communication solution combines NRR 25-certified hearing protection with industry-leading Mesh 2.0 technology. Designed for large professional crews and high-stakes arboricultural operations, the SENA 33i (30k model) offers enhanced connectivity, extended intercom range, and advanced noise control, ensuring crystal-clear audio even in the presence of loud chippers and chainsaws.
The standout feature of this system is its MESH compatibility, which makes linking multiple units together nearly effortless. Unlike traditional Bluetooth intercoms, Mesh technology allows for a virtually limitless number of users to connect and rejoin the network automatically if they move out of range. The Notch Hookups earmuffs are engineered to maintain their full NRR 25 rating with the speakers factory-integrated, providing a non-invasive, fully-certified audio solution that fits seamlessly onto KASK, Petzl, Studson, and Milwaukee helmets.
The Professional Choice: If you are managing a large crew or require superior audio fidelity and range, the SENA 33i is the definitive upgrade. It provides the reliability and "always-on" communication that professional arborists demand for complex removals and crane operations.
Key Features & Benefits
- SENA Mesh 2.0 Technology: Effortlessly link more than 4 units with a "self-healing" network that stays connected.
- Extended Intercom Range: Maintain clear communication across large job sites and tall canopies.
- Advanced Noise Control™: Intelligently filters out background machinery noise while enhancing voice clarity.
- Fully Certified Protection: NRR 25 rating remains intact with integrated speakers—no drilling required.
- Universal Helmet Fit: Includes mounting adapters for major arborist helmet brands like KASK, Petzl, and Studson.
Technical Specifications
| Brand | Notch Equipment / SENA |
| Comm Unit Model | SENA 33i (30k series) |
| Intercom Technology | Mesh 2.0 & Bluetooth 5.0 |
| Noise Reduction | NRR 25 Certified |
| Talk Time | Up to 8 hours (Mesh) / 13 hours (Bluetooth) |
