The four and a half model 122 picoammeter combines the technical advantages of Beijing Huace's high-sensitivity current measuring instrument with faster speed and higher durability. This economical instrument has 8 current ranges and fast auto-ranging function, can measure the current of 20fA to 20mA, and its measurement speed reaches 500 readings / second.
Type 122 picoammeter has a resolution of 10fA and high sensitivity, making it particularly suitable for low current test occasions, and its 20mA range allows it to measure higher currents, such as measuring sensor current of 4 ~ 20mA.
Despite the current measurement technology it uses, it is still much cheaper than other instruments with similar functions, such as optical power meters, picoammeter competitive products, or user-designed solutions. Because its price is equivalent to a general-purpose digital multimeter, basically any laboratory or production workshop can afford 122 picoampere-level current measurement