Full-Constellation, Fixed in Seconds Full-constellation tough signal tracking, robust anti-interference and advanced RTK algorithm, E1 takes only a few seconds to get a stable fixed solution even in challenging environments like multipath, tree canopy, city canyons, etc. Smaller, Lighter Does ultra-versatile mean heavy and bulky? E1 GNSS receiver gives the best answer. With Φ133.5 mm × 67 mm palmed size and 870g light weight, E1 largely lights your burden in while keeping your best surveying experience. Over 20hrs Operation Quitting removable batteries, E1 has optimized charging safety, waterproof capability and internal stacking design based on the internal battery design. 2.5hrs of fast charging via Type-C port can support over 20hrs continuous working time. It can also be charged via power bank, realize charging on-the-go. Abundant Transmission In order to meet different uses, E1 has integrated with NFC/Bluetooth for quick connnection, Type-C USB for charging & upgrade, WiFi for web page, TNC connector for internal UHF and RS232 serial port to connect with external radio. Ultra-Long Baseline Supporting both standard RTCM/CMR correction data transmission, E1 can reach up to 15km range in enhanced internal UHF mode, 20km range in external mode and over 50km via PDA CORS mode. 60° Tilt, 5s Initialization Optimized with the new generation of IMU module, you can easily initialize the IMU in just 5 seconds and start tilt measurements up to 60°. One initialization can meet the accuracy requirement of ±2.5cm for the whole work. Easy Download via Web UI Accessed via the WiFi of E1, you can easily login the web page for static data download, firmware upgrade, device status check and configuration. IP68 Durable Design No matter it’s rainy or dust weather, or you’ve accidently drop it onto the concrete or into the water, the durable housing of E1 can always protect your device from damage.