The Omegon FogFree USB heater band 20 cm helps prevent dew from forming on the intended optical component in damp observing conditions. Gentle heat keeps the surface slightly above ambient temperature and can help extend an observing session.
Wrap the flexible band around the matching optical assembly and secure it with the hook-and-loop fastening. Position it close to the optical surface without obstructing controls or the focuser. Before ordering, compare your tube, finder or eyepiece circumference with the stated band length.
This FogFree model uses 5 V USB-A. Use a suitable USB power supply or power bank with sufficient output. The manufacturer advises against connecting the heater band to a computer USB port.
The power source and controller are not included. Check voltage, connector and required current when selecting a suitable power source.
Technical data
| Resistance (Ω) | 6.25 |
| Current (A) | 0.8 |
| Heating power (W) | 4 |
| Heater band length (cm) | 20 |
| Connection | USB-A |
| Input voltage (V) | 5V |
| Length (cm) | 20 |
| Width (mm) | 44 |
| Series | FogFree |
Included: Heater band with connection cable and the connector specified in the technical data.
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