EMF Meter KKmeter Field Radiation Detector Handheld EMF Detector Digital LCD Radiation Meter Operation Guidance Power buttonLong press it to turn on or off the EMF MeterShort Press it to enable or disable the sound-Mutation FunctionThe Mutation Function is for people who think the alarm sound is annoying MG/UT button Long press it to delimit in which level you want the sensor to start beeping-Setting safe valueShort Press to do the selection of Units, Mili Gauss or Micro Tesla.Setting Safe Value- Change on the settings with Mode button to go up and ?/? button to go down. Mode button Long Press to turn the backlight on and offShort press to do Data Hold & Max Measurement Function ShiftData Hold & Max Measurement Function -When we are measuring something, the numbers are going to change.Hold function is to freeze the readings. If we press this button twice, it will register the Max Measurement we’ve got. Long Press to turn on or off the function timer-Manual/auto shut off shift Short press to do temperature unit ?/? ShiftManual/auto shut off Shift-The device will turn off automatically after 10 minutes Specifications:Material: ABS PlasticUnit: mG (Electric Field); μT (Field)Accuracy: ±5% (50μT to 200μT)μT at 50Hz or 50HzRange: Electric: 0~2000mG; Megnetic: 0~200μTResolution: 1mG, 0.1μTAlarm Threshold: 40mG, 0.4μTTemperature: 0~50â„ / 32~122℉Display: 4 digits LCD DisplayTest Bandwidth: 30Hz-300HzNumber of Axis: Single Axis Inductive HeadSampling Rate: 0.5 SecondsTest Mode: Bimodule Synchronous TestOver Range Indication: LCD Displays "HI"Operating Temperature: 0~50â„, Relative Humidity 0~80%Storage Temperature: -10~50â„, Relative Humidity: 0~70%Power Supply: 3 x 1.5V AAA Battery Item Size: Approx. 130 x 50 x 27mm / 5.12 x 1.97 x 1.06in (L x W x H)Item Weight: Approx. 74g / 2.62ozPackage Weight: Approx. 108g / 3.82oz Package Included:1 x Radiation Detector EMF Meter