A.W. SPERRY VINTAGE MULTITESTER MODEL SP-250 B 

Description

The A.W. Sperry Model SP-250 (often referred to as the SP-250 B) is a classic, handheld analog Volt-Ohm-Milliammeter (VOM). It features a mirrored scale plate to prevent parallax errors, and its impact-resistant thermoplastic case was designed for field durability.

Key Specifications

• Voltage Ranges: Measures both AC and DC voltage up to 1200V.

• Current & Resistance: Measures DC current up to 600mA and includes multiple resistance ranges.

• Temperature: Includes a temperature scale ranging from -40° F to 1200° F.

• Safety: Diode and safety fuse protected.

• Power Source: Operates on a single 1.5V AA battery (often used for the resistance measurements).