Description
0 is a professional-grade long-range wireless communication module based on the Semtech SX1278 transceiver
Insulation Resistance (MOhm) : ≥1000
1x CR2016 3V Lithium Coin Cell Battery
Solar Energy system
Compatible with widely available TP4056 charging boards for easy recharging
Tecsun GR-138 GREEN DYNAMO CRANK RADIO DT9205A Digital Multimeter 0 is a professional-grade long-rangeTecsun GR 138 GREEN DYNAMO CRANK RADIO The Tecsun GR 138 Green Dynamo Crank Radio is a portable emergency radio receiver that combines hand crank mechanical power generation with AM FM radio reception, designed for disaster preparedness and off grid communication scenarios. Emergency response professionals, outdoor enthusiasts, and disaster management agencies rely on this device as a critical backup communication tool when conventional power sources