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Prices
Actual prices.

USB devices
Price Note Link
USB voltmeter Type 1 22 euro voltage monitoring , [ including software + API ] link
USB voltmeter Type 2 35 euro standard measurement, [ including software + API ] link
USB voltmeter Type 3 35 euro better resolution , [ including software + API ] link
USB voltmeter Type 4 35 euro for sensors, bridges ..., [ including software + API ] link
USB voltmeter Type 5 70 euro galvanically isolated, [ including software + API ] link
USB voltmeter 4-channel 39 euro 4 channel, voltage monitoring , [ including software + API ] link
USB frequency counter 0 - 50 MHz 30 euro high impedance, high sensitivity , [ including software + API ] link
USB LC meter 20 euro , [ including software + API ] link

 
Web devices  
TCP/IP voltmeter/thermometer 60 euro including thermometer sensor [wihtout adapter] link

Ordering via email.
Prices are for 1-10 pieces. For more pieces ask for price.
Software for PC and APIs are included in the device price.

Post charge :
USA & Europe: 7 euro
Other country :  7 - 10 euro