Range/Resolution 0-200kV / 100V and 0-20kV / 10V Automatic range selection.-Drift: <0.1% in 10secs.-Standard: EN-500081-1 (EMC) and BS7506-2 (Construction)-Calibration: On a 150mm x 150mm charge plate.-Size, Weight: 124mm x 24mm x 64mm. 175g.-Construction: Anodised aluminium case with recessed-stainless steel sensing plate for maximum-integrity and accuracy.-Operation: Click button to zero and make readings. Click-button again to ¡°hold¡± the reading. Click again to resume readings.-Automatic switch-off after 60 seconds.-Low volt indicator shows condition of battery.-Equipment: Supplied with carrying case, battery (9V PP3),-earth lead and certificate of calibration .-¹æÆøÀÎÁõÇÔ ATEX and IECEx CertificationATEX is the European certification.IECEx is the unified international certification.II 2 GEx iA IIB T4/T5 Baseefa07ATEX0159IECEx BAS07.0042