Surge Protector with special Digital Indicator. Over Voltage Protection. Delay ... Temperature0~40 degrees centigrade,Resistance Heat:80 degrees centigradeWaveformSine Wave(depend on input voltage)Measurement (mm,H x ... x 176 x 176, 0.75 (SRE) Features·Surge, Spike and Lightning Protection·EMI/RFI Noise Filter·Resetable ... ·Delay Output·Digital meter indicates Line Voltage Sine Wave Surge Protector