Bought this from on the board a few weeks ago (impulse buy 
)
I won't be needing use of it, just trying to recoup some of my $
Specifications:
Working Temperature Range: -20℃ to 50℃
Weight: 21g
Dimension: 33x 69x 11mm
Working Voltage Range: 8-25V
Product Application:
1, Measure the rpm and kv for brushless motors at no-load or loaded, and display the voltage for the battery at the same time.
2, Using one of the additional accessories (Hall Rate Sensor Module), the rpm and kv of brushed motors can also be measured.
Advertising High Light：
[1], Electromotive force applied. More exact, easier to use, ultra portable and multifunctional.
[2], The Hall Rate Sensor Module. It allows measurement of rpm to be made on mechanically rotated devices.
[3]. High performance CMOS chip. KV displayed instantly.
[4], Easy to use. just need to clip one of the three motor wires for measuring, no additional power supply required.
[5]. RPM and kv can be also measured and displayed when motors running at 1S 3.7V lipo, or even less.
$28 shipped lower 48
Paypal preferred
Ken
20170526_194752.jpg
20170526_194746.jpg
)I won't be needing use of it, just trying to recoup some of my $
Specifications:
Working Temperature Range: -20℃ to 50℃
Weight: 21g
Dimension: 33x 69x 11mm
Working Voltage Range: 8-25V
Product Application:
1, Measure the rpm and kv for brushless motors at no-load or loaded, and display the voltage for the battery at the same time.
2, Using one of the additional accessories (Hall Rate Sensor Module), the rpm and kv of brushed motors can also be measured.
Advertising High Light：
[1], Electromotive force applied. More exact, easier to use, ultra portable and multifunctional.
[2], The Hall Rate Sensor Module. It allows measurement of rpm to be made on mechanically rotated devices.
[3]. High performance CMOS chip. KV displayed instantly.
[4], Easy to use. just need to clip one of the three motor wires for measuring, no additional power supply required.
[5]. RPM and kv can be also measured and displayed when motors running at 1S 3.7V lipo, or even less.
$28 shipped lower 48
Paypal preferred
Ken
20170526_194752.jpg
20170526_194746.jpg
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