• You don't have to worry about the solder joints, they're top notch!
• The Peak Low Voltage feature is worth the cost!
• The accuracy is the best I've seen.

VoltMagic R/C System Monitor

• Battery Voltage Indication — 20 accurate range selections for the LEDs
• Peak Low Voltage (PLV) — Captures momentary low voltages hundreds of times per second.
• Glitch and Failsafe Counting — Selectable FM/PPM glitch or PCM Fail Safe count
• Warns you of trouble — It will detect anything that might mess with the voltage at the receiver, such as a bad switch or a bad connection.
• Data Logger — PLV and Glitches/Fail Safes, plays back even after power off. You'll know what the low voltage was on your last flight and you'll know whether you got glitches/hits even if you forget to check before you turn the switch off.
• Application — Battery types: 4- or 5-cell NiMh/NiCd or 2S Lithium.  Voltage regulators can also be monitored.
• Connector — Universal (Futaba, JR, Z).
• High Accuracy — Calibrated within 0.015 vdc.

User Interface

RED (blinking or solid) = Warning, very low voltage.

YELLOW (blinking or solid) = Warning, voltage low.

GREEN blinking = Caution, glitch count or PLV near yellow warning.