Item Type: Mini Standing Wave Meter Material: Aluminum Alloy Frequency Range: 1.6MHz~30MHz Power Error: 5% Maximum Measurement Power: 100W Maximum Display Power: 138W Standing Wave Display Range: 1.0~10 Insertion Loss: <0.1dB Impedance: 50 ohms Display: 2.23in Organic Light Emitting Diode Screen, 128 x 32 Resolution MCU: AVR mega32 Standing Wave Detection: Using 3 magnetic ring detection circuit RF Connector: SL16-KF (M-KF) Female Charging Port: 5V (Micro USB) 200mA Power Consumption: <30mA (Average) Battery: 8.4V polymer Lithium Battery 350mAh (Shipped with built in battery) Continuous Working Time: 5 Hours Package List 1 x Standing Wave Meter Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. 1Aluminum Alloy Material: Mini standing wave meter adopts the high quality aluminum alloy shell, which is strong and durable 2Accurate Reading: This mini standing wave meter adopts organic light emitting diode screen display, 128 x 32 resolution, the reading is clear and accurate 3Algorithm Correction: 1024 point interpolation algorithm correction is performed on the nonlinearity of the diode on the software, and can simultaneously display standing wave, peak forward power PF, peak reverse power PR, average forward power AF, and average reverse power AR 4Basic Specifications: Frequency range is 1.6MHz~30MHz, power error 5%, maximum measurement power 100W, maximum display power 138W 5High Performance: The standing wave meter adopts 3 magnetic ring detection circuit, can work continuously for 5 hours, MCU is AVR mega32