Flask heater with stirrer,KJELDAHL,SOXHELT , 250 ml up to 2 liter laboratory

laboratory Digital PID heating mantle :
Three in one design accommodates 250, 500, 1000 or
2000ml round bottom flasks
Includes support rod holder
Max temperature: 450 deg. C
Stepless heat control
Electrical and mechanical protection against spilage
Easy cleaning
Dimensions: W21xD20xD24cm