Specifications
- Accuracy: ±5% FS.
 - Range: ±600 Amps.
 - Wire Clamp: 0.5" Channel (0000 AWG and up).
 - Dial: Calibrated from 0 to 600 on both sides of zero therefore permitting reading regardless of the cable polarity.
 - Movement: Moving Magnet.
 - Case: Steel.
 - Operating Temperature: 32°F to 104°F ( 0°C to 40°C).
 - Storage Temperature: -4°F to 131°F (-20°C to 55°C).
 
Model MT-109A is the direct replacement to Snap-On® MT-109A