This is an antenna analyzer for ham radio hobbyists. It can measure 50 ohms source impedance. It is also a meter for magnetic loop resonance, standing wave ratio, impedance...

with battery , with Bluetooth !
Features:

3.7v rechargeable battery
Frequency generation & control: 1-60MHz.
External power supply: 2.1mm power jack(center pin positive).
6 operation buttons, easy and convenient to operate.
Installed black metal case, just connect the power(not included) and then work.
Step size: user configurable increments of 100Hz, 1KHz, 10KHz, and 100KHz.
Support measuring data waveform analysis via connecting computer with USB cable(  not included  ).

Operation:
Manual control option displays SWR and complex impedance at selected frequencies       
Automatic scanning results displayed as frequencies of lowest SWR and complex impedance       
Battery operated for field use or use external 13.8V wall adapter      
Power saving modes       
Multi-point calibration for better accuracy  

Instrument Capabilities:
Measure antenna electrical parameters: SWR, impedance(resistance+reactance), capacitance, inductance;
Measure feed point impedance;
Measure ground loss;
Adjust antenna tuners and determine loss;
Measure inductors and capacitors;
Measure coax transmission line(SWR, length, velocity factor, approximate Q and loss, resonant frequency, and impedance);
Measure and determine optimum settings for tuning stubs: SWR, approximate Q, resonant frequency, bandwidth, impedance;
Determine characteristic impedance of transmission line;
Determine length of ¼ and ½ wave phasing lines;
Coaxial Cable Loss; 
Determine antenna tuner loss;  
Measure balun loss;
Measure inductor Q; 
Estimate quartz crystal parameters;
Measure magnetic loop resonance and SWR;

Specifications:
Version Type: Bluetooth Version
Frequency Generation & Control: 1-60MHz
Source Impedance: 50 ohms
Stability: (+/-) 100 ppm
Spectral Purity: Harmonics Down >- TBD dB beyond 60MHz
Step Size: User configurable increments of 100Hz, 1KHz, 10KHz, and 100KHz
Usable Measurement Range: SWR: 1.0 to 9.99
Impedance: Approx. 5 to 2000 ohms
RF Output: Adjustable: 2.0 Volts pp (typ)  
RF Out: BNC
Connectors: RF
Power Supply(3.7V Li-on Battery NOT Included): Powered by External: DC 12-14V, 500mA
External Power: 2.1mm Power Jack(center pin positive)
USB Interface: Mini USB Receptacle
Item Size: 10 * 5.2 * 2.8cm / 3.94 * 2.05 * 1.1in 
Item Weight: 200g / 7.05oz 
Package Size: Ordinary Version: 11.5 * 7 * 7cm; BT Version: 12 * 9 * 7cm
Package Weight: 240-252g / 8.47-8.92oz



Package List:
1 * mini60s Antenna Analyzer(with bluetooth and battery )
2 * Adapter