Smart Prepaid IC Card Lora Water Meter Manufacturers

Gomelong is a professional manufactures of din rail type bi-directional energy meter. Our professional expertise in manufacturing din rail type bi-directional energy meter has been honed over the past 10+ years. RS485 din rail type bi-directional energy meter measure active electric energy, no need calibrate for long-term operation. RS485 din rail type bi-directional energy meter adopt the special chip of measurement ADE7755.

Gomelong is a professional manufactures of Single phase smart modbus digital ammeter . Single phase smart modbus digital ammeter with RS485 measure Voltage in the power grid by AC sampling technique. Single phase smart modbus digital ammeter with RS485 is programable and able to set the ratio by pressing the keys on the panel.With features of convenient installation.Easy wiring and maintenance,programable at site etc.

Gomelong is a professional manufactures of Single phase digital bidirectional kwh meter. Our professional expertise in manufacturing Single phase digital bidirectional kwh meter has been honed over the past 10+ years. Single phase digital bidirectional kwh meter adopt the special chip of measurement ADE7755.Single phase digital bidirectional kwh meter has high reliability and long life electronic components, so the Meter assume feature of high reliability and long life.

Gomelong is a professional manufactures of Keypad STS prepaid smart energy meter. Our professional expertise in manufacturing Keypad STS prepaid smart energy meter has been honed over the past 10+ years. Keypad STS prepaid smart energy meter,customer purchases energy by the vending network to get a serial number (name as ToKEN),and then use the keypad of keypad STS prepaid smart energy meter to enter the TOKEN,the credit data will be entered into the meter,after the TOKEN being accepted,the TOKEN contains 20digits and is encrypted.

Gomelong is a professional manufactures of Two phase three wire modbus RTU energy meter. Two phase three wire modbus RTU energy meter is utilized digital sampling technology and advanced SMT technology The meter has unbeatable accuracy and high reliability. It is designed and manufactured according to actual situations of resident usage of electricity. The two-phase voltage and current through the sampling circuit switched into signals and the signals into a two-phase energy measurement specific integrated chip. The specific IC put out pulse signals which are proportional to the measured two-phase power to drive the register, to achieve measuring two-phase eneray. At the same time, the energy meter output power test pulse with isolated optical coupler.

Gomelong is a professional manufactures of Three phase voltage meters. Our professional expertise in manufacturing Three phase voltage meters has been honed over the past 10+ years. Three phase voltage meters are used in power grid and automatic control system measuring various electrica parameters such as current, voltage frequencv, power factor, active power and reactive power etc. Based on the additional functions, we divide digital meters in four series: X, K, D, S.