Answer:
Sivananda describes the SMD-100 as detecting ferrous, non-ferrous and stainless-steel targets down to 0.1 g. ERP lists self-adjusting circuits, an inbuilt charger, buzzer and LED alerts, and a low-battery buzzer.
The manufacturer describes the SMD-100 as a lightweight handheld detector for hidden metal objects, with target size down to 0.1 g. ERP lists fully automatic self-adjusting circuitry, an inbuilt battery charger, detection of ferrous and non-ferrous metals including stainless steel, proportional buzzer and LED alerts, and a continuous buzzer when the battery needs changing or recharging. ABS casing is not included here because it is not confirmed in the reviewed manufacturer or ERP data.
