Ammeter, Analog, 0mA to 500mA; DC. Sold as a case of 40.

GSC International 4-13097-40 Analog DC Ammeter, 0–500mA Range, ±2.5% Accuracy, Banana Binding Posts – Case of 40 Classroom Meters for STEM and Physics Labs Case of 40 Meters – Ideal bulk pack for schools, lab kits, or classroom outfitting 0–500mA DC Range – Measures direct current for low-voltage circuit demonstrations ±2.5% Accuracy – Provides precise, reliable readings for STEM learning environments Banana Jack Binding Posts – Secure, color-coded connections for quick and easy wiring Analog Needle Display – Visualizes current changes in real time for interactive science lessons PRODUCT WARNINGS WARNING: This product can expose you to chemicals including styrene and lead, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov. Our products are not toys. Use in a laboratory or educational setting only. Not for children 15 and under.