1. FREQUENCY RANGE: VHF UHF two way radio handheld power and SWR meter supports 80‑999MHz frequency, compatible with DMR walkie talkies.2. PRODUCT FEATURES: Pantalla VSWR: 1.00‑99.9. Maximum measurable power range up to 120W.3. MULTI PURPOSE: Check your antenna SWR and also check your radio RF power watts.4. LCD SCREEN: Backlit LCD display for easy reading. Easy to install handheld radio walkie talkie SWR meter.5. SLEEP AND WAKE UP: Sleeps after 3 minutes without any operation, can be woken up by RF or manually. Save power and enhance range.Spec:Item Type: Digital SWR MeterMaterial: MetalFrequency Range: 80‑999MHzPantalla VSWR: 1.00‑99.9Maximum Power: 120WPower Error: Continuous Sampling: 100 Times/secBurst Sampling: Sampling Triggered By The Leading Edge of The Signal, Automatic Conversion Between Burst and Continuous Sampling.Frequency Compensation: Automatic Measurement of Signal Frequency and Frequency Compensation for Power Conversion.Sleep and Wake Up: Sleep After 3 Minutes Without Any Operation, Can Be Woken Up By RF Or Manually.Screen: 128x64 LCD ScreenOperation Keys: Single ButtonRF Interface: 50ΩType C Interface: USB Cable Charging, 200mABattery: 350mAh Lithium Battery (included)Product Size: Approx. 95x35x26mm / 3.7x1.4x1.0inHow to Use:Use after chargingPackageList:1 x Digital SWR Meter1 x UHF Female to N Male Connector1 x UHF Male to N Female Connector1 x Storage Box