Mastercool 52240 professional digital hvac/r clamp meter.
- multi-function: frequency count, diode check and alarm- peak data hold- unit and sign display- current: ac 20 ma - 600a- voltage: ac - 200 mv - 750v / dc - 1v - 1000v- auto power off- frequency: 10hz - 2khz- ohms: resistance 200m ohm - 20k ohm
