Answer:
The Adapter/Charger is a constant current type.
Primary: 230V -50Hz Secondary: 100mA constant current @9vdc
Output plug: Positive centre, Negative outer.
UK version Replacement Mecmesin Part no. 304-005
This specification is for the gauges listed below.
The use of any different charger/adapter from the one specified above may cause damage to the gauge.
AFG, BFG, CFG+, AFTI, Myometer, Shotcrete Penetrometer, Orbis & Tornado
