MESTEK ST05 Digital Socket Tester Battery-Operated HD Screen Socket Tester - US Plug

• The polarity detection of the three-hole socket wiring
• The detection of the protection function of the leakage switch
• The HD display can see the screen value clearly in the dark environment
• It can detect the wiring quickly and accurately
• Suitable for fire protection/laboratory/factory/family

Specifications:

• Zero-live voltage measure (L-N): 30-250V/(50-60HZ)
• Zero-earth voltage measure (N-E): 0.1-10V /(50-60HZ)
• Working environment: Temp 0 ℃-40 ℃ 1 humidity (20%-70%)
• Storage environment: Temp 10 ℃-50 ℃/ humidity (20%-80%)
• RCD Current: >30mA
• RCD Working voltage: 220V±20V
• Battery: AAA x 2 battery (not included)
• Weight: 106.8g