Features:

1.One Unit with two functions:Check the phase sequence and indicate the phase is open or not 2.Safe and reliable:With alligator clips, easily involve the terminals of the control panel, guaranteeing reliability and safety.
3.Wide voltage test:It can check 60V to 600V AC three-phase voltage,high performance.
4.Easy to use:With LED light to show if the phase is open or not,supports buzzer indication.
5.Portable design:Small and light weight,with a carrying bag, convenient to take.

Specifications:
Operation voltage: 60V～600V AC three phase
Limit support voltage:2000V/minut (impulse ;voltage ;4000V)
Operation frequency  range:20Hz～400Hz
Limit  time  for  continuous use:
60 ;minutes maximum  at  60V  AC
4 ;minutes  maximum  at  600V  AC
Phase  Sequence Indicator  LED:  
Green for correct phase sequence, intermittent beep
Red for reverse phase sequence, continuous beep 
Test ;pen  and cable length:80cm
Size:80 x 60 x 24mm
Item Weight:135g 

Package Information:
Package Size:17 x 11 x 4.6cm / 6.7 x 4.3 x 1.8in
Package Weight:239g / 8.4oz

Package List:
1 x SM852B Phase ;Indicator
3 x Alligator ;clips
1 x Carrying ;Bag