5V Power Digital Frequency Meter Tachometer LED Display Frequency Meter Tester Counter Multi-function Meter Sports & Outdoors 【Health Benefits Tips】Go from sitting

【Health Benefits Tips】Go from sitting to standing in one easy smooth motion

Wide range 30~130 dB

you would assure to prolong the life of dies

Measurement range :50m

Specifications:Name: warehouse shelfMaterial: cold rolled steelColor: WhiteSize: 200*50*200cmWeight: 32KGLoad-Bearing: 120KG/LayerPacking List:1* four layer steel storage shelf

5V Power Digital Frequency Meter Tachometer LED Display Frequency Meter Tester Counter Multi-function Meter Sports & Outdoors 【Health Benefits Tips】Go from sittingShips FREE Handling Day: 1 3 Days, Arriving Day: 15 35 Days[SHORTDESCRIPTION] Display mode: four digit red nixie tubeInput impedance: 10KInput signal: high voltage 3 25v; Low level 0 2v; Sine wave or square wave signalTrigger delay: rise delay triggerSpeed 1 9999 rpmTiming: 0 ~ 9999 seconds 0. 02fsCounting speed: 1000 CPSSampling speed: 1secThe decimal point changes automatically according to the range ^_^: 952bff1ba6b30550b4e6721a8686f11f