SkyRC i-Meter Multimeter 7-in-1 Checker The SkyRC i-Meter 7-in-1 Multimeter is capable of many functions and is an all-in-one unit. Functions: Battery checker  Battery internal resistance  Watt meter  Servo tester  Optical tachometer  Temperature gauge  Thrust calculator Max input voltage: 60V  Voltage measurement range: 2-8S LiPo/LiFe/Lilon  Voltage display resolution: 0.001V  Volt port: 2.54mm pitch pins, 9 pins  Max current: 100A  Shunt resistance: 0.001ohm  Displayed resolution A: 0.01 Temperature resolution: 1C/1F  PPM signal output: 750uS-2150uS 7  Number of probellor blades measurable: 1 to 5  Propellor RPM range: 1-60,000RPM  Dimensions: 95.3x72.8x21.5mm  New Weight: 85g