The GigaHertz Solutions HF35C offers a unique package of basic measurement features at a very affordable price. Product Features: Easy to operate, power the unit on and then walk your meter through your indoor living space. The LCD digital display will allow you to identify peak readings Equipped with a sturdy Logarithmic Periodic antenna designed for directional detection of RF waves. Readings increase when the meter gets closer to or points in the direction of offending sources. A Course measurement range and Fine measurement range provide added value when needing to assess RF emissions Course range covers stronger readings of 1 - 1999 µW/m² Fine measurement range of 0.1 - 199.9 µW/m² offers higher sensitivity and allows for accurate detection of lower level signals Detects RF radiation generated by cellular and cordless phones (Digital or DECT); microwave ovens; wireless communication devices such as internet routers, WLAN, Wi-Fi, baby monitors, Bluetooth, video games, smart meters and cell phone towers in the operational range of 700 MHz to 2.7 GHz (GSM, UMTS, 2G, 3G, 4G) Detects both analog and pulsed digital signals (1 - 1999 µW/m²) Extended Range Features: Audio Identification: The meter's audio tone replicates the signal patterns and intensity of measured RF emissions and aids in source identification Peak Settings and Average Settings: While measurements taken on the Average Value setting provide a basic sense of RF levels at a test site, the Peak Value setting reveals the highest levels of RF being emitted. The Peak Value is regarded as the measurement critical to assessing potential biological effects Product Specifications: Frequency Range: 800 MHz - 2.5 GHz Measuring Ranges: 1 - 1999 µW/m² Capable of 199,900 µW/m² with the external DG20 Attenuator Accuracy: Basic accuracy including linearity tolerance : /- 6dB Zero offset and rollover /- 9 digits Sensor: Logarithmic periodic antenna Audio Analysis: Acoustic signal proportional to the field strength with "Geiger-counter-effect" Weight: approximately 10 oz. Dimensions: 2.75" W x 9" L x 1.25" H Signal rating: Full signal only (Analog plus Digital/pulsed) Power supply: 9 Volt alkaline manganese battery (included), Average operation time 10 - 12 hours Battery Low Indicator: Meter will auto power off 3 minutes following battery low signal display Auto Power Off: Saves on battery use will auto power off after 40 min of continuous EMF testing What's Included: HF35C Radio Frequency Meter Logarithmic Periodic Antenna 700 MHz 2.7 GHz vertically polarized User's Guide 2 Year Manufacturer Warranty 9 V Alkaline Battery Calibration: During the manufacturing process strict calibration procedures are followed using only high end, calibrated measurement instruments. This guarantees that every HF35C meter made by Gigahertz has been individually calibrated to a traceable standard. Ships via Standard Delivery