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  Hot News - How to get free sample for SF-20 Power meter

>>>>>Register at December 10th
How to get free sample for Power meter :

  1. Sample products a total of 20pcs  can be sent, first come, first served
  2. Please give me a test report after agreeing to receive the sample
  3. The test report is as follows: Please compare our equipment with the ones you use
  4. The product is sent to you free of charge but we will not be responsible for tax collection
  5. Please fill out the form below to arrange to send the product to you.
  6. If you can confirm to get the sample, we will email you to confirm the address.








1 Power direct digital readout, without any calibration. 
2. Maximum measurable power range up to 20W. 
3. 1 seconds check your Radio power output watt , also check your radio frequency.
​4.Easy to install handheld Radio 

Measurable power range: 0-20W 
Maximum power input: 20W
0-10W  (
Can not be continuous for more than a minute )
10W-20W (
Can not be continuous for more than a 30 second )
20W or more  (
Can not be continuous for more than a 5 second  )
 Caution :  Metal body is heat when working.
 Caution :  Over 20W ,will damage the 50 Ω  dummy load.

POWER METER Specifications:
MAX. Power in 20 WATT
Build-in Dummy Load  50Ω  20W
RF Power in Range  100-525MHz 
input resistance   50Ω 
Display   0.0-21W
Frequency counter Range 20.000MHz~999.99MHz
Build in :   Detect RF in 
Antenna in :  SMA male antenna
Display 20.000-999.99
Features Specifications:
Work temperature -20℃~+60℃
Battery Build -in Li-ion Battery  
Size(with OUT BNC /SMA)  25*25*87 (mm)
SIZE ( with BNC/SMA socket)  25*25*115 (mm)
Power  in  5V (micro usb)
Weight 94g 


Features function 
Push red button -" Power on " and "Frequency counter "mode
Push red button -" Power Meter "
Push red button -" Signal Level "mode
Push red button -" Battery Level "mode

1.1How to use Power meter .
Push red button -switch on
Push red button  at once to mode "POWER "
Connect the BNC to Radio output .
Caution : Over 20W ,will damage the 50 Ω  dummy load.

1.2How to use Frequency counter .
Two methods can use the frequency counnter meter,  BNC  connected to the walkie-talkie, the top sma antenna to receive radio signals.
Push red button --" Power on " and "Frequency counter "mode
Connect the antenna to sma  .
20.000MHz to 999.999 MHz

1.3How to use signal input level .
Push red button -switch on
Push red button  at once to mode "receive "
Connect the antenna to sma  .

1.4How to check Battery level .
Push red button -switch
Push red button to mode "BAT "

Package Contents 

1x English User Manual
1x USB charger cable 
1x USB AC adapter 100-240V 

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