Single Phase Prepaid Keypad Meter E-EM101FeaturesPayment feature realized by encrypted 20 digits token.LED indication for low credit and power status.LED indication for low credit and power status.Alarm for Low Credit / Overload/ Fraud.Terminal cover opening detection alarm.1 year warranty. E-EM102FeaturesDouble insulation.Terminal cover tampering.Protection: Power over load, Line/ load reversal, Magnetic tampering.LED indication for low credit and power status.Max. cable size 56 mm.8 characters, 7 segment LCD displayAutomatic system fault diagnosis.1 year warranty. Single Phase Prepaid Card Meter EM-201CFeaturesPayment use IC Card prepaid automatic power-off when low credit.Power-off alarm when electricity shortage, remind users to buy electricity timely.Register display the total power consumption.Overload alarm. Display type- LCD.Humidity- 90%1 Year warranty. Three Phase Prepaid Keypad Meter E-EM109FeaturesDouble insulation.Protection against ; power overload; over/under voltage;Line/lode reversal; Magnetic tampering; Terminal cover tampering.LED indication for low credit and power status.Terminal type : BS EN terminal.Max . cable size 85mm.12 key international standard layout keypad with buzzer and text feedback.8 characters, 7segment LCD display.Electrostatic discharge 15kv air discharge.Immunity to fast transient Burst 4kv.Automatic system fault diagnosis.