... temperature -399 C *the heating plate size: 300*400*20MM Name UF-3040 Constant temperature heating unitsIntroductionFirst, the product features* ... electronics, room laboratory, chemical, and major industry thermostat heating, warm up.* temperature thermal insulation with a solid, ... , control temperature range: room temperature -399 °C3, the heating plate size: 300 × 400 × 20MMThree functions: a single ...