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The Align HETMT901 Multifunction Tester is designed for diagnosing and measuring electrical equipment on RC models. It features a high-precision display for individual cell voltage for 2-8S lithium packs, showing total pack voltage and remaining capacity. It also displays cell count, highest/lowest cell voltage, and voltage difference. The device includes a servo diagnostic feature, a digital tachometer to measure propeller RPM, and reverse polarity protection for the cell input.
| Voltage Measurement Range | 2-8S Lipo/Li-ion |
| Voltage Display Resolution | 0.001V |
| PPM Manual Signal Output | 2270us-770us |
| PPM Automatic Signal Output | 1520us ±(120-630us) |
| Number of Propellers Measurable | 2 to 7 |
| Propeller Rotating Range | 1-60000RPM |
| Measurement Distance | 5-15cm |
| BEC Input Voltage Range | 4-7V |
| BEC Output | 3A |
| Battery Input Terminal Spec | 2.5mm pitch pins, compatible with Align balancing plugs |
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