Lightweight and completely portable. Ready to use in 30 seconds. Ideal for field service jobs. Sturdy metal tank holds enough gas for three hours of operation. Does not require cords, batteries or cartridges. Temperature adjusts from 392 to 932°F. 14 tip combinations available. Inactive hot air nozzles for low temperature heat are available. Refills with butane lighter gas - Weller cat. no. WB1 or WB2. Uses WPT series tips.