INFWIN DigiLTN-Lightning Sensor

The INFWIN DigiLTN is a lightning sensor with SDI-12 or RS485/Modbus-RTU output, built around the AMS AS3935 lightning sensing chip. It is an advisory instrument that detects cloud-to-ground, intra-cloud, and cloud-to-cloud discharges within a 40 km (24 mile) radius. Power supply, output interface, connector type, and cable length are configurable via ordering code - the default variant (DigiLTN-AAAB002) ships with lightning detection, RS485/Modbus-RTU output, 5–28V DC supply, a cold-pressed terminal connector, and a 2 m cable. DigiLTN reports strike count, estimated distance to the storm head, relative energy of the last strike, and rolling strike/noise/disturber counts over several time windows. An embedded man-made disturber rejection algorithm and user-configurable detection thresholds help reduce false detections. Reverse power protection and built-in TVS/ESD protection are included. Key Features Integrated AMS AS3935 lightning sensor 40 km detection radius: Warns of lightning storm activity within a 40 km (24 mile) radius Distance estimation: 15 steps, from overhead to 40 km Detects both discharge types: Cloud-to-ground and intra-cloud (cloud-to-cloud) flashes Disturber rejection: Embedded man-made disturber rejection algorithm reduces false detections Configurable detection thresholds: Programmable detection levels for optimal control in different environments Rich detection data: Strike count, noise count, disturber count, distance estimate, relative strike energy, and rolling 10/30/60-minute counts Digital output: SDI-12 (V1.3) for universal datalogger compatibility and low-power use, or RS485/Modbus-RTU for long cable runs or multi-sensor networks, both with built-in surge protection Compact size: 111 × 25.5 mm sensor body Reverse power protection: Built-in TVS/ESD protection Connector options: Cold-pressed terminal or stripped & tinned lead wires Configuration utility: SensorOneSet software (RS485) or SensorOneSetSDI12 software (SDI-12) included for sensor configuration Excellent price-performance ratio Cable length: 2 m standard; custom lengths available Applications Industrial applications Weather research Safety management System integration where advisory storm data supports safety and management decisions Important Notes DigiLTN is an advisory instrument, not a precision instrument - it indiscriminately detects cloud-to-cloud, intra-cloud, and cloud-to-ground discharges and reports an approximate distance and strike count rather than exact strike location. Typical detection efficiency is approximately 40%, and depends on the use environment and level of ambient man-made electromagnetic noise. Detection thresholds are user-configurable; raising them reduces false detections in noisy industrial environments but also reduces genuine lightning detection. Consecutive strikes are reported with a minimum 1 second span between events. Specifications Lightning Detection Storm head range estimate 15 values, 0–40 km (0–24 miles) Consecutive strike span 1 s Detection efficiency Approximately 40% (environment-dependent) Reported parameters Strike count since last read; noise count since last read; disturber count since last read; distance estimation; relative energy of last strike; strike count (10 min, 30 min, 60 min); noise count (60 min); disturber count (60 min) Electrical Output interface RS485 (Modbus-RTU) or SDI-12, V1.3 (selectable via ordering code) Power supply 5–28V DC Quiescent current SDI-12: <400 µA @ 12V DC; RS485: <1.2 mA @ 12V DC Max. current during lightning detected SDI-12: <5 mA @ 12V DC; RS485: <6 mA @ 12V DC Mechanical Dimensions 111 × 25.5 mm (sensor body, length × diameter) IP rating IP68 Connector Cold-pressed terminal or stripped & tinned lead wires (selectable via ordering code) Cable length 2 m standard; custom length available Installation Wall mounting Environmental Operating conditions −40°C to +80°C; 0–100% humidity Ordering Code Guide Code 1: Product Series DigiLTN DigiLTN lightning sensor Code 2: Parameters A Lightning detection Code 3: Power Supply A X 5–28V DC Customize Code 4: Output Interface A B RS485 (Modbus-RTU) SDI-12 Code 5: Connector B C Cold-pressed terminal Stripped & tinned lead wires Code 6: Cable Length 002 XXX 2 meters Custom (XXX = length in meters) Default Variant: DigiLTN-AAAB002 Measuring parameters Lightning detection Power supply 5–28V DC Output interface RS485, Modbus-RTU Connector Cold-pressed terminal Cable length 2 meters Custom variants (power supply, output interface, connector, cable length) are available - contact us to discuss your requirements. Technical Documents User Manual SensorOneSet Configuration Utility (RS485) SensorOneSetSDI12 Configuration Utility (SDI-12) Modbus is a registered trademark of Schneider Electric. SDI-12 is a trademark of the SDI-12 Support Group. AMS and AS3935 are trademarks of ams-OSRAM AG. INFWIN is a registered trademark of Dalian Endeavour Technology Co., Ltd. MCCI and MCCI Catena are registered trademarks of MCCI Corporation. All other trademarks are the property of their respective owners.