The Simpson TS-113 Volt-Ohm-Milliammeter Railroad Test Set is a reliable, rugged instrument that was designed for use by trained and qualified technicians associated with the Railroad Signaling and Communications Field. It closely follows the proven Simpson pattern, based on experience of many years of successful multimeter manufacture, in construction and in general principle.

Features:

• A current-limiting diode prevents overload damage
• AC current transformer facilitates minimal voltage drop
• On time measurement at any rate in excess of 30 pulses per minute
• An adjustable Pointer Stop for observation of peak reading stabilization