CAT IV MultiMeter and AC Voltage Detector with 8-piece Test Lead kit. The EX505-K is a heavy duty industrial multimeter kit. The kit includes Extech’s model EX505, DV25 and TL808 products. Kit provides you with a reliable meter and all the necessary accessories for industrial electric troubleshooting. Products are supplied in a soft carrying case that provides protection and organization for the meters whenever they are needed.