DIN prepaid energy meter

JOY121, a DIN-Rail prepaid meter, consists of MCU (Metering Control Unit) and CIU (Customer Interface Unit), which link to each other with PLC.
The MCU can be installed outside in a meter box, communicating with the CIU via power line, while the CIU is installed in customer's house to provide safer and easier daily operation.

● STS compliant
● Keypad with audible and text feedback
● Visual and audio low credit warning
● Adjustable power limit
● Emergency credit allowance
● Self-diagnosis of various faults including relay fault, memory fault, etc.
● Significant Reverse Energy (SRE) detection
● Tamper detection
● Easy switch between prepayment and post-payment option by 20-digital token