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Item Type: Digital Speed Meter
Working Power: AC 110V-230V, 40mA
Display Mode: 0.56 red LED, four-digit reading
Measuring Range: 10-9999
Measurement Accuracy: ± 0.1%, reading ± 1 digit
Display Refresh Rate: >3 times / second
Overrange Display: Display "----" Size: Approx. 79 x 43 x 26mm / 3.1 x 1.7 x 1in
Package List:
1 x Meter1 x Hall Effect Sensor(with magnet)
Steve C
Reviewed in the United States on August 27, 2023
I ordered 2 of these and the cases of both units were broken in the same place. One was much more severe than the other.Both units were functional and included a magnet. The colors on the wires were matching on both of the units that I received but that would not have presented any issue due to the sensor having a wiring diagram indicating the wire's purpose by color.They are less expensive than other sellers here with the same items, but I'm guessing it is because they are selling blems from the same factory. They function, they just aren't "pretty"
Lionel Prevost
Reviewed in the United States on July 15, 2023
The wire connector with thee colors does not correspondto the wires from the sensor. Don't waste money on this one
albert fuller
Reviewed in Canada on June 8, 2023
Installed on my south end 9A lathe working great after flipping the magnet over.before installing the magnet check for polarity by passing the magnet by the pickup.
Jim Hamsa
Reviewed in the United States on April 22, 2023
Did no recieve magnet, thought it was suppose to come with mgnet for rcieving signal
roseroserobin
Reviewed in Canada on January 29, 2022
I bought this although it had no reviews and only a single rating of 1 star. The alternatives required a low voltage supply, this one I could connect to the AC which was more convenient in my case. Also, some reviews of the units requiring a separate supply indicated that the supply voltage could be fussy – a built in power supply eliminated that variable.I did a bench test and it seemed to work fine. I marked the magnet for correct polarity. When I finally installed it I saw no RPM reported, only error/no signal codes. This turned out to be my fault, I had installed an additional connector between the sensor and the readout for convenience of installing and when disassembling my machine. That connector was bad – my fault – but it did raise some questions:How do I trouble shoot this?What signals / voltages do I expect on the lines, which are labeled only in Chinese?Which lines are which? If I lose the original color coded connector, I’m lost!Is there a minimum and maximum distance between the magnet and the sensor?How do I interpret the error codes (‘LLLL’ HHHH’) ?For any piece of electronic equipment, specifications should be available, even if the manufacturer only included a fortune cookie sized piece of paper with a web address, that would help.Also, the description suggests that it updates 3 times per second. It appears to update more like once every 3 seconds. The faster update was another reason I chose this one rather than on of the alternatives requiring a low voltage supply. However, I can live with this. All in all it’s good enough for my application - a drill press converted to variable speed.
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