Just tested by boiling water with turning knob set to no.1, it is working fine, the red button will pop up when water boiled. Have rust at the small round thing on cover (in pic 4), not for fussy.
* high = 18cm, diameter = 25 cm.
* Call/sms 930am-1030pm 83848928 allanteh.
* Pickup at Boon Lay Place S640207.