SB15A/1 AC digital ammeterDetailed product description：

The SB15A/1 AC digital ammeter is a portable instrument that uses 4 1/2 CMOS large-scale integrated circuits, and its measurement results are displayed using a five digit LED. This meter can be paired with various sensors or converters to conveniently achieve digital measurement of various electrical and non electrical quantities, making it an ideal instrument for laboratory and industrial field testing. The communication measurement adopts the true effective value method.  

Technical data
Measurement range, internal resistance, resolution, and basic error: Under reference conditions, the basic error of the product conforms to Table 1 within 24 hours.
Table 1

range	measurement range	resolution	basic error
			50Hz-1kHz	50Hz-500Hz
200µA	0-199.99µA	10nA	± (0.2% reading+20 words)	——
2mA	0-1.9999mA	100nA
20mA	0-19.999mA	1µA
200mA	0-199.99mA	10µA	——	± (0.3% reading+20 words)
2A	0-1.9999A	100µA		± (0.4% reading+20 words)