ONO SOKKI HT-5500
https://www.onosokki.co.jp/English/hp_e/products/keisoku/revo/ht5500.html
- Detection method : Optical reflective non-contact measurement; contact method (contact adapter supplied)
- Display : 5-digit LED, with backlight (character height: 10.2 mm)
- Measurement time : Within 1 s + time required for one cycle (however, when the rotation is less than 60 r/min, twice the time required for one cycle (MAX))
- Measurement accuracy: Displayed value* x (±0.02 %) ± 1 count
- Memory function : 20 data (MAX)
- Power : 4 AAA alkaline batteries or exclusive AC adapter (PB-7090 option)
- Operating temperature : 0 to +40°C
- Outer dimensions : 180.5 (W) x 47.5 (L) x 66 (D) mm **without an adapter
- Weight : Approx. 270 g (including batteries)