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The FNIRSI GC-03 is a multifunctional radiation detector designed for professional nuclear radiation measurement in everyday environments such as the home, office, car, and outdoors. Equipped with a 2.4-inch high-definition color display, it provides real-time monitoring of nuclear radiation as well as electric and magnetic field strength. For added safety, the device features three alarm modes: audible alert, vibration, and visual light warning. Features 3-in-1 Detection: Monitors electric, magnetic, and nuclear radiation with one device. High-Precision GM Tube: Accurately detects gamma, X-rays, and hard beta radiation with low power consumption. Real-Time Curve + 50 Alarm Records: Tracks radiation trends and stores alarm history for easy review. Custom Triple Alarms: Supports visual, audible, and vibration alerts with adjustable thresholds. Long Battery Life: 1500 mAh battery for extended and reliable field use. Specifications Nuclear Radiation Range: 0.01μSv/h-999.99μSv/h Accuracy: 0.01μSv/h Electric Field Range: 1V/m-1999V/m Accuracy: 1V/m Magnetic Field Range: 0.01μT-99.99μT Accuracy: 0.01μT Radiation Power 0.2-1000mW/m² Detection Radiation Type Ionizing radiation (gamma rays, etc.) Detector Energy compensation GM tube (Geiger counter tube) Dose Current Rate 0.00-10000μSv/h (10mSv/h) Cumulative Dose Equivalent 0.00μSv-500.0mSv Energy Range 48keV-1.5MeV ≤ ±30% (for 137Cs-) Sensitivity 80CPM/μSv Dose Unit μSv/h, uGy/h, mR/h, CPS, CPM Alarm Mode Light, vibration, sound Display 2.4-inch color screen Backlight Brightness Adjustable Power Supply USB-C (5 V/1 A) Battery 1500 mAh Languages English, Chinese Dimensions 138 x 63 x 32 mm Weight 141 g Included 1x FNIRSI GC-03 Radiation Detector 1x USB cable 1x Manual Downloads Manual Firmware v1.0.4

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The FNIRSI TDM-120P is a thermal imaging multimeter that combines thermal imaging technology with traditional multimeter functions, delivering more comprehensive and intuitive test results for electrical testing and related applications. It is widely used in fields such as electrical engineering, industrial manufacturing, construction, and security monitoring. The TDM-120P provides reliable technical support for equipment testing, fault diagnosis, and maintenance management, helping to improve production efficiency, product quality, and overall safety. Features 2-in-1: Thermal Imager + True RMS Multimeter (19,999 Counts) 120 x 90 HD Imaging | <60 mK High Thermal Sensitivity -20°C to 400°C (-4°F to 752°F) Temperature Range | 0.01–1.00 Adjustable Emissivity 2.8" LCD Touch Screen | 7 Color Palettes | One-Click Save & USB Export Full Multimeter Functions: AC/DC Voltage, Resistance, and Capacitance Wide Application: HVAC, Leak Detection, Electrical & Automotive Repair Specifications 7 Color Palettes Arctic / Hot Iron / Iron Red / Rainbow / Lava / Black Hot / White Hot Detector Type Vanadium oxide Field of View 50° Screen 2.8-inch LCD touchscreen Frame Rate ≤25 Hz Infrared Resolution 120 x 90 Temperature Measurement Display Center point, automatic high/low temperature tracking Temperature Range -20°C ~ 400°C (-4°F ~ 752°F) Temperature Unit °C / °F Accuracy ±2°C or ±2% (maximum value measured) High/Low Temperature Alarm Yes Emissivity 0.01-1 adjustable Languages English, Chinese Multimeter DC Voltage Range: 1.9999V / 19.999V / 199.99V / 1000V Accuracy: ±(0.5% +3) AC Voltage Range: 1.9999V / 19.999V / 199.99V / 750.0V Accuracy: ±(1% +3) Resistance Range: 19.999MΩ / 1.9999MΩ / 199.99KΩ / 19.999KΩ Accuracy: ±(0.5% +3) Range: 1.9999KΩ / 199.99Ω Accuracy: ±(2.0% +3) Capacitance Range: 999.9μF / 99.99μF / 9.999μF / 999.9nF / 99.99nF / 9.999nF Accuracy: ±(2.0% +5) Range: 9.999mF / 99.99mF Accuracy: ±(5.0% +20) Diode Yes Continuity Yes Included 1x FNIRSI TDM-120P Thermal Imaging Multimeter 2x Multimeter Test Leads 1x Storage bag 1x USB cable 1x Manual Downloads Manual Firmware v1.2.6

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The DE-5000 is a smart, high-accurate, flexible and easy-to-use portable LCR meter. It features automatic LCR check, 4-wire Kelvin measurement, backlit display with 19999/1999 counts, multiple measurement modes and selectable test frequencies (100 Hz, 120 Hz, 1 kHz, 10 kHz or 100 kHz). The DE-5000 LCR meter is a practical helper for engineers or technicians. Features Auto L.C.R. check Ls/Lp/Cs/Cp/Rs/Rp/DCR with D/Q/θ/ESR measurement 4-wire Kelvin measurement 20,000 / 2,000 counts display Backlight Relative mode Series / Parallel modes Components sorting function Low battery indication Auto power off Specifications Test frequency 100 Hz / 120 Hz / 1 kHz / 10 kHz / 100 kHz Resistance range 20.000 Ω – 200.0 MΩ DCR range 200.00 Ω – 200.0 MΩ Capacitance range 200.00 pF – 20.00 mF Inductance range 20.000 µH – 2.000 KH Display (backlit LCD) 19999 / 1999 counts Selectable tolerance ±0.25%, ±0.5%, ±1%, ±2%, ±5%, ±10%, ±20% Power supply 9 V battery Dimensions 188 x 95 x 52 mm Weight 350 g (excluding battery) Included DE-5000 LCR meter Alligator test lead case (TL-21) AC/DC adaptor Guard line (TL-23) TL-22 SMD tweezers 9 V battery Carrying case Manual Downloads Datasheet

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The OWON XDM2041 is a low-cost, high-precision benchtop multimeter. The meter has a True RMS function to measure the AC voltage and current and it has a reading speed of up to 65 values per second. Also, the XDM2041 is equipped with functions such as measuring 2-wire and 4-wire resistance. The XDM2041 is able to store data internally in the memory of the meter and display it on the 3.7" high-resolution LCD display. Up to 1000 points can be stored and the time interval can be varied from 15ms to 9999s. By means of the RS232 port on the back of the device, the meter can be programmed and controlled via SCPI. Specifications Measurement Range Resolution Accuracy ±(% of reading + LSB) DC Voltage 50.000mV 0.001mV 0.1%+10 500.00mV 0.01mV 0.025%+5 5.0000V 0.0001V 0.025%+5 50.000V 0.001V 0.03%+5 500.00V 0.01V 0.1%+5 1000.0V 0.1V 0.1%+5 AC Voltage 500mv-750v 20Hz~45Hz 1%+30 45Hz~65Hz 0.5%+30 65Hz~1KHz 0.7%+30 DC Current 500uA 0.01uA 0.15%+20 5000uA 0.1uA 0.15%+10 50mA 0.001mA 0.15%+20 500mA 0.01mA 0.15%+10 5A 0.0001A 0.5%+10 10A 0.001A 0.5%+10 AC Current 500uA-500mA 20 Hz-1 kHz 0.5%+20 5A-10A 1.5%+20 Resistance 500Ω 0.01Ω 0.1%+10 5KΩ 0.0001KΩ 0.1%+5 50KΩ 0.001KΩ 0.1%+5 500KΩ 0.01KΩ 0.1%+5 5MΩ 0.0001MΩ 0.25%+5 50MΩ 0.001MΩ 0.1%+10 Four-wire resistance 500Ω 0.01Ω 0.1%+10 5KΩ 0.0001KΩ 0.1%+5 50KΩ 0.001KΩ 0.1%+5   Measurement Range Resolution Accuracy ±(% of reading + % of range) Frequency 10.000Hz-60MHz / ±(0.2%+8) Capacitance 50nF-500uF / 2.5%+5 5mF-50mF 5%+8 Diode 3.0000 V 0.0001V / Continuity 1000 Ω 0.1Ω / Temperature K type，PT100 Display 55,000 Data-logging Function Logging Duration 15ms-9999s Logging Length 1,000 points Included 1x OWON XDM2041 Multimeter 2x Multimeter leads 2x Alligator clips 1x Fuse 1x Manual Downloads User manual Programming manual PC software

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The Seeed Studio RF Explorer WSUB1G+ is a powerful, high-performance digital spectrum analyzer covering frequencies from 50 kHz to 1 GHz. The Slim model features a robust design, a more conveniently positioned USB connector on the side, and a larger internal battery capacity. Features Internal LNA amplifier and selectable attenuator Low frequency support from 50 KHz covering LF, MF, HF, VHF and UHF up to 960 Mhz New HELP and SET buttons to improve user interface and configuration selection with 2-clicks Wide band coverage to all popular sub-1 Ghz bands, including FM, TV and DTV, ISM, RFID, GSM, etc. Ideal choice for HAM bands from 160 m to 33 cm Pocket size and light weight Solid metal case Spectrum Analyzer mode with Peak Max and Hold, Normal, Overwrite and Averaging modes High capacity internal Lithium battery for 20hs+ of continuous run, rechargeable by USB Multi-platform Windows/Linux/MacOS Open Source software and API libraries Can be extended with internal Expansion Modules for additional band and functionality Specifications Frequency band: 0.05 MHz – 960 MHz Frequency span: 0.1 MHz – 960 MHz Internal selectable LNA 25 dB gain Internal selectable Attenuator 30 dB Graphics LCD 128 x 64 pixels, great visibility outdoors Support included for Windows, Linux and MacOS X Backlight for great visibility indoor Internal Lithium Ion 1800 mA/h rechargeable battery Standard SMA 50 Ω connector Wideband 144/433 MHz dual band telescopic antenna included UHF 400-900 MHz rubber duck articulated antenna included Amplitude resolution: 0.5 dBm Dynamic range: -125 dBm to 10 dBm Absolute Max input power: +30 dBm Average noise level (typical LNA): -125 dBm Frequency stability and accuracy (typical): ±10 ppm Amplitude stability and accuracy (typical): ±2 dBm Frequency resolution: 1 kHz Resolution bandwidth (RBW): Automatic 2.6 kHz to 600 kHz Included 1x Seeed Studio RF Explorer WSUB1G+ Slim Spectrum Analyzer 1x Mini USB cable 1x Dual band 144/430 MHz Telescopic antenna 1x UHF 400-900 Mhz antenna 1x EVA case

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The Seeed Studio RF Explorer 3G Combo is a handheld digital spectrum analyzer and an affordable tool for working across a wide range of popular frequency bands. It is based on a highly integrated frequency synthesizer and a double-balanced mixer, providing high performance, compact dimensions, low power consumption, and excellent value. Designed for both indoor and outdoor use, the RF Explorer 3G Combo can also be connected to a PC via a standard Mini-USB 2.0 connector for additional functionality. This model combines a WSUB1G base unit with an RFEMWSUB3G expansion module, supplied fully assembled and tested. It features two SMA connectors and includes two antennas: a dual-band 144/430 MHz telescopic antenna for sub-GHz frequencies and a helical whip antenna for the 2.4 GHz band. Additional frequency-specific antennas may be required for optimal performance in certain supported frequency ranges. This combination provides the wide frequency coverage of the WSUB3G module together with the high sensitivity and fast response of the WSUB1G unit in the commonly used sub-1 GHz frequency range. Features Pocket size and light weight Solid aluminum metal case Includes a transport EVA carry case for RF Explorer Spectrum Analyzer mode with Peak Max and Hold, Normal, Overwrite and Averaging modes Lifetime free firmware upgrades available, open to community requested features High capacity Lipo for 16+ hours of continuous run, rechargeable by USB Windows PC client Open Source Can be extended with internal Expansion Modules for additional band and functionality Wide band coverage to all popular RF frequencies, starting at 15 MHz and going up to 2.7 GHz. This includes very interesting frequency areas such as 2 m HAM radio, all VHF and UHF, FM radio, GPS, WiFi and WiMax, Bluetooth, etc. Firmware: RF Explorer 3G Combo is delivered with upgraded firmware v1.09. Note some of the features and operation accuracy will be improved in upcoming free firmware revisions. Specifications Battery Lithium Cells / Batteries contained in equipment UN3481 - PI967 Frequency band 15-2700 MHz Frequency span 112 KHz - 600 MHz Graphics LCD 128 x 64 pixels, great visibility outdoors PC Windows client Supports Windows (32 and 64 bits) Backlight For great indoor visibility 2 standard SMA 50 ohms connector, One for Sub-GHz wideband Nagoya NA-773 telescopic antenna included and another 2.4 GHz one for 15-2700 MHz band with helical antenna included. Amplitude resolution 0.5 dBm Dynamic range Left SMA port (WSUB1G) -115 dBm to 0 dBm Right SMA port (WSUB3G) -110 dBm to -10 dBm Absolute Max input power Left SMA port (WSUB1G) +5 dBm Right SMA port (WSUB3G) +30 dBm Average noise level (typical) -110 dBm Frequency stability and accuracy (typical) ±10 ppm Amplitude stability and accuracy (typical) ±6 dBm Frequency resolution 1 KHz Resolution bandwidth (RBW) Automatic 3 KHz to 600 KHz Weight 185 g Dimensions 113 x 70 x 25 mm Included Seeed Studio RF Explorer 3G Combo Spectrum Analyzer Nagoya NA-773 wideband telescopic antenna 2.4 GHz band antenna EVA Case Documentation For more info and to get started with your RF Explorer, visit the start page. For questions and support, please visit https://support.rf-explorer.com

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