ADVANCE PRECISION: Advanced microelectronic technology and SMT process, high precision, high reliability and stability. INSTALLATION: Compact size and light weight, 35mm standard DIN- rail installation, easy to install, more convenient to use. OUTPUT: Standard configuration pulse output passive (polarity), May select distant pulse output passive (nonpolarity), supporting to contact with all kind of AMR system conveniently. DETECTION: Automatic detection the direction of the of load current. For instructions(Only red energy impulse signal when working, If no green instructions power supply, that is meaning the direction of the of load current reverse). SAFETY: Single pole width, extension terminals cover, in order to protect to use safety. Specifications: Model: XTM18S Accuracy: Class 1 Voltage: 220V Current: 5(30)A Insulation performance: AC voltage 4kv for 1 minute,1.2/50us waveform impulse voltage 6kv Size: 12 x 6.3cm / 4.72 x 2.4in Weight: 106g Package included: 1 x DIN-Rail Electric Meter 1 x Manual