Works fine, the screen with blue backlight is dull truth. The cover is slightly small. Took out curiosity, screws. There are no brass nuts and plastic averages. between the cool of which multimeters do and deshman, But optics-glass! The board is made neatly, the flux is washed. The case is not rubberized. Tape light reflection in the presence of 5 pieces. Recommend.

Put 5 stars because products UNI-T typically work very well and are more robust than those even more cheap. I must say though that this tachometer me somewhat disappointed, looks built bad, the emitter IR is not centered compared to the lens. I don't know if this is normal but I don't think, I could test because it comes without batteries

Description corresponds. The quality of performance is decent. Came in accordance with the package, which the seller stated. Delivery do19rus in the area of the month since the shipment. Packing is more than enough. Track number working. But the price rose, and take or not-it's up to you.

Items as described and looks well built. Also the additional case also looks nice and well built. The only issue was the Adafar "Combined Delivery" which was very slow to ship and deliver it. It may not be the sellers fault but Adafar systems.

Ordered 18 December-8 January received at the post office. I bought 3 mesinchikov batteries, it works. It measures the turnover clearly, there are indicators of mineral and maximum rpm, also considers the number of humid times ....