iPower 4 Inch Inline Booster Duct Fan 100 CFM HVAC Exhaust Ventilation Blower with Low Noise for Grow Tent, Basements, Bathrooms, Kitchens and Attics
Durable: Superior balanced centrifugal impeller and high strength housing for long service life. The motor features a permanently lubricated bearing that operates quietly and requires no maintenance.
Efficient but quiet: Lead to great effects with a diameter of 4 inches, speed of 2930 RPM and 100 CFM air flow. A less than 40 dB noise level does not have any harm and will not disturb your work.
Easy to install: Portable, lightweight and easy to install in areas with little available space. Sufficient 5.5' grounded power cord inside is convenient to use.
Wide application: Exhaust air for HVAC to remove heats & odors or intake fresh air, used in grow tents, kitchens, bathrooms, basements, attics, garage, workshops etc.
Specification: Voltage: 110/120V; Wattage: 12W; Power Cord: 5.5FT. Max operating temp of motor is 130℃ / 266℉; Max ambient temp is 60℃ / 140℉. Note: Please turn the fan off immediately if the blades get stuck by other objects and turn on after clean.

Mcbazel Surecom SW-102 Digital VHF/UHF 125-525Mhz Antenna Power & SWR Meter
VSWR. Forward and reflected power direct digital readout, without any calibration. NOTE: DOES NOT compatible with Digital Radio.
Maximum measurable power range up to 120W.
Low insertion loss (0.3 decibels or less) structure allows it to be permanently connected.
Build in Frequency country . Interface: N-J Interface
Frequency range: 125 - 525MHz. NOTE: ground plate is NOT included.