Features: PM5900 Motor and Phase Rotation Indicator is used to test magnetic field direction of three-phase system, phase rotation, motor rotation direction. Without a need to link testing line, the motor rotation direction can be decided by placing this indicator above the motor and aligning it with motor drive shaft. It is durable, reliable and light-weight handheld device, which is necessary tool for those who often install, repair or maintain three-phase system or motor. Used to test phase sequence input of three-phase voltage, to indicate phase line L1, L2 and L3. It also supports non-contact type magnetic field rotation direction test (motor rotation direction test). Specifications: Brand: PEAKMETER Model: PM5900 Maximal working voltage: 400V AC voltage Nominal voltage (tested at rotation direction): 2~400V AC voltage,2~400Hz Nominal voltage (tested at phase sequence): 120~400V AC voltage,2~400Hz Test current (per phase): <3.5mA Battery: 3 x 1.5V AA batteries(NOT included ) Temperature: Operating: 0~40℃, maximal 80 % relative humidity (non-condensing) Storage: -10~50℃, maximal 80 % relative humidity (non-condensing, battery not included) Altitude: <2000m(meter) Anti-explosion type: IP 40 Weight: 442g(approx.) Package Includes: 1 x Tester (batteries are NOT included ) 3 x Test Cables 3 x Cable Clips 1 x Bag