Hi, I recently got my hands on a couple of SPM01 and SPM02 compact meters from ZemiSmart and started to wonder about the safety of fitting them. And their millions of clones available on the market.
2025-09-09..-38.png Download(81.49 kB) .
Control lights are protected by a fuse block. Zamel or F&F for their rail-mounted counters openly write in the instructions that they need to be dually fused - and here they don't: mounting on a wire, just below the fuse. On the manufacturer's materials or in reviews, the meters are always plugged into the fuse of the cable being measured. And yet these cables are not even 0.5 mm².
Have any of you come across a fuse for such a meter? I thought about soldering a 5×20 mm fuse holder onto the voltage measuring cable, but maybe I'm just being paranoid
AI: What exactly will you be using these meters for - are you talking about measuring entire circuits, individual devices, or something else? .
Measurement of entire circuits
AI: What fuse (type and value) is currently on the wire that you want to connect the meter to?
B16, C10
2025-09-09..-38.png Download(81.49 kB) .Control lights are protected by a fuse block. Zamel or F&F for their rail-mounted counters openly write in the instructions that they need to be dually fused - and here they don't: mounting on a wire, just below the fuse. On the manufacturer's materials or in reviews, the meters are always plugged into the fuse of the cable being measured. And yet these cables are not even 0.5 mm².
Have any of you come across a fuse for such a meter? I thought about soldering a 5×20 mm fuse holder onto the voltage measuring cable, but maybe I'm just being paranoid
AI: What exactly will you be using these meters for - are you talking about measuring entire circuits, individual devices, or something else? .
Measurement of entire circuits
AI: What fuse (type and value) is currently on the wire that you want to connect the meter to?
B16, C10
