FeaturesPortability and flexibilitycombining transmitter and receiver together, small and light. Real one machine and multi-functionvoltage and current range and small signal accuracy improved greatly, it is fitted for rock sampling tester, large-power IP receiver, nomal resistivity tool, IP, water finder, 2D and 3D high-density electrical tool etc.. Multi-parameter measurement, wide applicationvoltage, current, apparent resitivity, SP, apparent chargability, metal factor, half life, attenuation, IP ratio, departure, IP spectrum. Blue technique, wireless remote controlPocket PC controlled central unit by Bluetooth technique, remote control is effective within 10 m. All parameters and measurement display can be fulfilled easily wirelessly. Pocket PC control, Powerful functionall Chinese pocket PC support the man machine interface and sampling control, parameters setting, data display and storge, graph plot, image making, Field works are very easy.Extendable easilydata sampling and storage are all controlled by pocket PC. Data management is easy and software is easy to be extended. Powerful pocket PCbeside the high hardware configuration, pocket PC is installed with many utility software. User can arrange the date, navigate the web via wireless net, and use WORD, EXCEL, PowerPoint, and Media Player for office and amusement. With double high-density resistivity cable port, cross-hole resistivity can be carried out without medium switcher. Measurement is concise and easy. Super wide range, high accuracyvoltage is as high as 64Vp-p, small signal measurement accuracy is high voltage is less than 0.1mV and current is less 0.1mA with ±1% accuracyï¼?. Tool is fitted for high resistivity region; high-density can achieve good results. Complete anti-interface techniqueuse multi-stage filter and signal enhancement technique, integrate anti-interface funation, accuracy is high. Auto SP, shift and electrode compensation with range as high as ±10V. The panel has "infinite"pole for pole-pole and dipole-pole measurement. During dipole-pole measurement, sA,sB, and s can be measured automatically with high efficiency.Receiver has over-voltage over- current and AB open protection ability. Ground resitivity checkAB pole and MN pole can be checked at any time, easy and practically. Dignosis program can find the trouble with the tool quickly and accurately. Imported air proof box is water-proof, dust-proof, and long life. Flexiable control choicethe tool can be controlled with note PC for field work.