• Digital Phase Detector with wireless adapter
• Detection functions: Positive phase, negative phase (Three-phase 3-wire, Three-phase 4-wire), open phase, prediction of ground phase (Three-phase 3-wire)
• Measurement parameters: Three-phase AC voltage (line-to-line voltage and voltage to ground), Frequency: Voltage measurement accuracy: ±2.0% rdg. ±8 dgt., Frequency measurement accuracy: ±0.5% rdg. ±1 dgt., Response time: 3 s or less, Display update rate: 500 ms
• Measurement targets: Covered cables, Metal portions *Use on shielded cables not supported; Three-phase 90.0 to 520.0 V AC (45 to 66 Hz)
• Diameter of measurable conductors: Finished outer diameter: 6 to 30 mm (0.24 to 1.18 in)
• Maximum rated voltage to earth: 600 V AC (CAT IV)
• Environmental protection: Main unit (excluding voltage sensors): IP54 (EN60529) dustproof and waterproof
• Other functions: Hold function, Backlight, Buzzer, Auto power-off, Low battery warning, Drop proof (on concrete, 1 m/ 1 time)
• Power supply: AA alkaline batteries (LR6) ×4, Maximum rated power: 3 VA, Continuous operating time: 5 hours (Backlight off, standby state, Without Z3210)
• Dimensions and mass: 84 mm (3.31 in)W × 146 mm (5.75 in)H × 46 mm (1.81 in)D, 590 g (20.8 oz, including batteries), cord length: 0.5 m (1.64 ft)

Included Accessories:

• AA alkaline batteries (LR6) ×4, Instruction manual ×1, Carrying case C0203 ×1, Color clip (White ×2, red ×2, blue ×2, yellow ×2), Spiral tubes (black ×1)

The PD3259-90 Digital Phase Detector lets you to measure three-phase voltage and detect phase sequence simultaneously by just clipping onto covered cables, ensuring absolutely no contact with metal parts for maximum safety. 

The PD3259-90 includes the Z3210 wireless adapter that allows the use of Gennect Cross, a complementary app designed specifically for use with Hioki measuring instruments, lets you check and manage measurement results and create reports.