Available with the BT520ANG and BT521ANG, or as a standalone accessory, the BTL20ANG intelligent test probe set makes Fluke 500-series battery analysers the ideal measurement tools for maintenance, troubleshooting and to measure performance of individual batteries and battery banks used in critical battery back-up applications. With optimised measurement pin angles and coil placement, the BTL20ANG gives you the manoeuvrability you need to avoid obstacles and get into tight cabinet spaces, all while offering the same CAT II 1000V and CAT III 600V you have come to expect from Fluke battery analysers.