Electromagnetic meters

100% Brand New@ 25 x 125 Khz RFID Cards, For RFID Time Attendance  Access Control Systems... *** 25 Pieces 125 Khz RFID CARDS with HOLE   ***      Radio-frequency identification (RFID) is the wireless use of electromagnetic fields to transfer data, for the purposes of automatically identifying and tracking tags attached to objects. The tags contain electronically stored information. Some tags are powered by electromagnetic induction from magnetic fields produced near the reader. Some types collect energy from the interrogating radio waves and act as a passive transponder. Other types have a local power source such as a battery and may operate at hundreds of meters from the reader. Unlike a barcode, the tag does not necessarily need to be within line of sight of the reader, and may be embedded

Its a very easy to install D.I.Y. electromagnetic lock kit which includes 2 remotes, 1 power supply, 1 adapter and 1 electromagnetic lock. This is a locking device that consists of an electromagnet and an armature plate. The maximum number of locks attached is 4. Range of the RF remote will be 30 meters(Line of sight). This Key-less Lock has completely anti rust body. The lock can be fixed on door by any carpenter or blacksmith as the case may be. A block diagram to configure is provided for general idea about the system. An easy and step by step configuration manual and TWO YEAR WARRANTY CLAUSE will be provided along with the product. There is separate supply for lock and for the receiver unit. One supply is sufficient to drive all the four locks.

Overview Spark's remote controller features a brand new Wi-Fi signal transmission system, capable of controlling the aircraft * and gimbal camera at a maximum transmission range of 1.2 mi (2 km). ** The remote controller can connect to a mobile device wirelessly and display a live video feed via DJI GO 4. Its folding clamps allow you to attach your mobile device securely. Maximum remote controller battery life is approximately 2.5 hours. *** * The Spark remote controller is currently only compatible with Spark aircraft. ** The remote controller can only reach its maximum transmission distance (FCC) in wide open areas with no electromagnetic interference and at an altitude of around 120 meters. *** Maximum operation time should be taken for reference only. Highlights Video transmission range of up to 1.2 mi (2 km). Top speed of up to 31 mph (50 kph) in Sport mode. In the Box Spark - Remote Controller × 1 Specifications Operating frequencies: 2.412-2.462 GHz, 5.745-5.825 GHz Max transmission distance (unobstructed, free of interference): 2.4 GHz: 1.2 mi (2 km, FCC), 0.31 mi (0.5 km, CE), 0.31 mi (0.5 km, SRRC) 5.8 GHz: 1.2 mi (2 km, FCC), 0.19 mi (0.3 km, CE), 0.75 mi (1.2 km, SRRC) Note: 5.8 GHz transmission is not available in some regions due to local regulations. Operating temperature range: 32°F to 104°F (0°C to 40°C) Built-in battery: 2970 mAh Transmitter power (EIRP): 2.4 GHz: 26 dbm (FCC), 18 dBm (CE), 18 dBm (SRRC) 5.8 GHz: 28 dbm (FCC), 14 dBm (CE), 26 dBm (SRRC) Operating voltage: 950 mA, 3.7 V Supported mobile device thickness: 6.5 mm-8.5 mm Max length: 160 mm

Great 5000 device to explore precious metals and treasures to discover targets in the ground to a depth of 50 meters a new special gold & metal detection device with best new technologies and a lot of features in easy to use the device: GREAT 5000 GREAT 5000 gold & metal detector is all in one device to detect various types of underground objects like gold minerals, gold treasures, precious metals, diamonds and gemstones, and voids and cavity. The device brings you the best price and free shipping service to all countries From Golden Detector gold and metal detectors The systems the device is running on System 1: The long-range ion system System 2: the electromagnetic system System 3: Ground Scan System (3D) System 4: The system for distinguishing minerals System 5: direct horizontal imaging system System 6: direct vertical imaging system Order your device now by contact with us via the following contacts: info@GoldenDetector.com Mobile: 971503380055 Video of how to use the device https://youtu.be/jACavVWP-8M web: https://www.goldendetector.com/en/great-5000-grt our address on map: https://goo.gl/maps/S2HsTUdBVC1y6zAx7