Description: 
 JCJ603 frequency tachometer enables measurement of the frequency and speed, 6 LED display. 



 Technical parameters: 
 JCJ603 frequency meter / tachometer 
 Power supply: AC90V ~ 260V or DC90V ~ 360V 
 Power: 2W 
 Sampling Period: 1S maximum measurement frequency: 50KHz 
 Measurement frequency: a two-range, high frequency (GH) 50 ~ 20000Hz, low frequency: 0.1 ~ 50Hz 
 Display range: -199 999 ~ 999999 
 Input signal: switch, level pulse (low level -30 ~ 0.5V; high 4 ~ 30V); external sensor signals such as photoelectric control, proximity switches, Hall sensors. 
 Control Output: Two relay output, normally open, normally closed contact 
 Relay contact capacity: 220VAC/3A 
 Shape and the hole: 96 × 48 × 82, hole: 92 × 45 
 Working Environment: Temperature 0 ~ 50 degrees, humidity ≤ 90% RH