Features: This digital display ac ammeter is suitable for measuring single-phase ac current parameters of power distribution system With the function of communication(LNF32-C ) Instrument programmable, support RTU communication protocol. Can be widely used in various control systems, power distribution automation, industrial automation, intelligent building and other occasions. Ultra-thin design, and Liquid crystal display Easy to install, no bracket installation and high protection level for durability Specification: Working environment conditions Working temperature -10°C ~ 55°C Storage temperature -25°C ~ 70°C Relative humidity ≤95%RH,No condensation altitude ≤2500m Anti-fouling level Non-corrosive gas Protection grade Display surface frame IP54, instrument case IP20 insulation Signal, power supply, the output terminal for shell > 100 m Ω resistance withstand voltage input and power supply≥2kV, input and output≥2kV, power and output≥2kV Display Display mode LCD Working power supply Nominal range AC/DC（80~270）V Power consumption ≤5VA withstand voltage ≥2kV Current input range 5A/1A resolution 1mA impedance ≤20mΩ/phase Power consumption ≤0.2 VA/phase Over current Duration:1.2In,instantaneous:10In/5s frequency 45 Hz-65 Hz Communication interface Physical interface RS-485 communication rate MAX.9.6 kbps Communication protocol RTU isolation voltage 2000 VAC (1 min) Type(Optional) LNF32(no Communication), LNF32-C ( with Communication) Size 9.5*9.5*4.3cm/3.7*3.7*1.7in Weight Approx.190g/6.7oz Package list: 1 x Digital Single-phase Ammeter 1 x manual 1、This digital display ac ammeter is suitable for measuring single-phase ac current parameters of power distribution system 2、With the function of communication(LNF32-C ) 3、Instrument programmable, support RTU communication protocol. 4、Can be widely used in various control systems, power distribution automation, industrial automation, intelligent building and other occasions. 5、Ultra-thin design, and Liquid crystal display