Spektrum Aircraft Telemetry Flight Pack Voltage Sensor 3-Pin with 20 Inch External Lead P-SPMA9570

• Product Type: Aircraft Telemetry Flight Pack Voltage Sensor
• Connector Type: EC3 battery connectors (pre-fitted)
• External Sensor Lead Length: 20 inches
• Input Voltage Range: 3.5–50V
• Maximum Burst Current: 140A (with appropriately rated connectors and wire)
• Maximum Continuous Current: 60A (upgrade to EC5 connectors if current exceeds 60A)
• Wire Gauge: 13 AWG
• Product Length: 1.3 inches (33mm)
• Product Width: 0.9 inches (23mm)
• Product Height: 0.6 inches (15mm)
• Product Weight: 0.85 oz (24g)
• Telemetry Data Monitored: Capacity used (mAh), current draw, temperature
• Application: Electric-powered aircraft and gas engine-powered aircraft with ignition batteries
• Required Equipment: Spektrum Telemetry Module TM1000 and Spektrum telemetry-capable transmitter
• Compatibility: Not compatible with DX8 Gen1, DX7s, or Apple STI Device
• Setup: No calibration or programming required
• Installation: Pre-wired with EC3 connectors for direct battery-to-ESC connection

Overview

The Spektrum Aircraft Telemetry Flight Pack Voltage Sensor (model P-SPMA9570) is an essential telemetry accessory designed for RC aircraft enthusiasts in the UK who demand precise power system monitoring during flight. This advanced 3-pin voltage sensor provides real-time data on your flight pack battery performance, allowing you to track energy consumption, current draw, and battery temperature directly through your Spektrum telemetry-capable transmitter. Whether you fly electric-powered aircraft or gas engine-powered models with ignition batteries, this compact sensor gives you complete visibility into your power system's health and performance, ensuring you can confidently manage your flights and extend the lifespan of your expensive LiPo batteries.

For serious RC aircraft fliers across the UK, having accurate battery telemetry is no longer a luxury—it's a necessity. The Spektrum Telemetry Flight Pack Voltage Sensor monitors crucial data including capacity used (measured in mAh), real-time current draw, and battery temperature whilst you're in the air. This information is transmitted wirelessly to your transmitter, allowing you to make informed decisions about battery management and flight time without guesswork. The sensor's lightweight design and straightforward installation mean you can add professional-grade monitoring to any electric RC aircraft without significant modification or complex setup procedures.

This telemetry sensor represents Spektrum's commitment to providing RC modellers with the tools needed to fly safely and efficiently. Its compact dimensions and efficient design make it suitable for virtually unlimited applications in the RC aircraft world, from trainers and sport flyers to high-performance electric aircraft and gas-powered models.

Key Features

• 3-pin Telemetry Voltage Sensor — This dedicated voltage monitoring sensor provides precise battery voltage measurement transmitted directly to your Spektrum telemetry receiver and transmitter, giving you real-time awareness of your flight pack's electrical state throughout every flight.
• 20-inch External Sensor Cable — The generous 20-inch external sensor lead allows flexible placement of the voltage monitoring probe away from the main sensor body, enabling optimal sensor positioning for accurate readings without compromising airframe design or weight distribution.
• Measures Capacity Used (mAh) — Track exactly how many milliamp-hours your flight pack has delivered during each sortie, helping you understand your aircraft's power consumption characteristics and plan optimal flight times with precision.
• Current and Temperature Monitoring — Beyond voltage, this sensor monitors real-time current draw and battery temperature, providing comprehensive power system diagnostics that help identify potential issues before they become dangerous mid-flight failures.
• Lightweight Compact Design — Weighing just 0.85 oz (24g) with dimensions of only 1.3 inches long, 0.9 inches wide, and 0.6 inches tall, this sensor adds virtually no weight penalty to your aircraft whilst delivering professional-grade telemetry functionality.
• EC3 Battery Connectors — Pre-wired with standard EC3 connectors that plug directly between your flight pack battery and ESC or telemetry module, requiring absolutely no soldering, crimping, or complicated configuration for installation.
• No Calibration Required — The sensor arrives ready to use with no calibration or programming of the unit itself needed; simply connect it and configure the telemetry settings in your Spektrum transmitter's menu system.
• High Current Capability — With a maximum burst current rating of 140A (using appropriate connectors and wire gauge) and maximum continuous current of 60A, this sensor handles the power requirements of modern electric RC aircraft, from small trainers to large aerobatic models.
• Wireless Telemetry Integration — Requires a Spektrum telemetry-capable receiver and transmitter; once paired, all sensor data streams wirelessly to your transmitter display, eliminating the need for wired connections to the flight pack.
• Electric and Gas Aircraft Compatible — Works with electric-powered aircraft using flight pack batteries or gas engine-powered aircraft using ignition system batteries, making this a versatile choice for any power system type.

Technical Performance

The Spektrum Aircraft Telemetry Flight Pack Voltage Sensor represents sophisticated engineering optimised for the demanding requirements of RC aircraft telemetry. This sensor operates across an impressive input voltage range of 3.5 to 50 volts, accommodating everything from small 2-cell LiPo packs to large multi-cell battery configurations used in advanced electric aircraft. The 13 AWG wire gauge provides appropriate current-carrying capacity whilst maintaining flexibility for routing through tight airframe spaces. The sensor's maximum burst current rating of 140A (with suitably rated EC3 connectors and cabling) and maximum continuous current rating of 60A means it handles the power demands of modern brushless motor systems without voltage sag or signal degradation. For applications exceeding the 60A continuous current threshold, Spektrum recommends upgrading to EC5 connectors to maintain optimal performance and safety margins. The engineering behind this sensor prioritises reliability and data accuracy; the compact form factor and lightweight construction make it suitable for installation in virtually any RC aircraft configuration without requiring significant modification. The temperature monitoring capability adds a crucial safety dimension, alerting you to overheating battery packs before they fail catastrophically in flight. All telemetry data transmits wirelessly to your Spektrum transmitter display, providing real-time feedback on capacity used, current draw, and temperature status throughout your flight.

What's in the Box

• Spektrum Aircraft Telemetry Flight Pack Voltage Sensor (P-SPMA9570)
• Pre-attached 20-inch external voltage sensor lead
• EC3 battery connectors (pre-fitted)
• Instruction manual

What You Need to Complete

• Spektrum Telemetry Module (TM1000) or Spektrum telemetry-capable receiver
• Spektrum telemetry-capable transmitter (note: not compatible with DX8 Gen1, DX7s, or Apple STI device)
• Flight pack battery with EC3 connectors
• Electronic Speed Controller (ESC) with EC3 connector

Frequently Asked Questions

• Is the Spektrum Aircraft Telemetry Flight Pack Voltage Sensor compatible with my DX transmitter? — This sensor requires a Spektrum telemetry-capable transmitter. It is not compatible with DX8 Generation 1, DX7s, or Apple STI devices. Check your transmitter's specifications to confirm telemetry capability before purchasing this sensor.
• What voltage range does this telemetry sensor support? — The sensor operates across an input voltage range of 3.5 to 50 volts, making it suitable for small 2-cell LiPo flight packs through to large multi-cell battery configurations used in advanced electric aircraft and high-performance models.
• Can I use this sensor with gas engine-powered aircraft? — Yes, this sensor works with both electric-powered aircraft and gas engine-powered aircraft using ignition batteries. Its wide 3.5–50V input range accommodates various battery types and configurations used in nitro and petrol RC aircraft.
• What happens if my aircraft's current draw exceeds the 60A continuous rating? — The sensor's maximum continuous current rating is 60A with standard EC3 connectors. If your aircraft consistently draws more than 60A, Spektrum recommends upgrading to EC5 connectors, which provide better current-carrying capacity and safety margins for high-power applications.
• Do I need to calibrate this sensor before flying? — No calibration or programming of the sensor itself is required. Simply connect the sensor between your flight pack battery and ESC using the pre-attached EC3 connectors, then configure the telemetry settings in your Spektrum transmitter's menu system. The sensor arrives ready to use out of the box.
• How much weight does this sensor add to my aircraft? — This sensor weighs just 0.85 oz (24g), making it an extremely lightweight addition to your aircraft. The compact dimensions (1.3 inches long, 0.9 inches wide, 0.6 inches tall) mean it can be mounted virtually anywhere in your airframe with minimal impact on weight distribution.
• What telemetry data does this sensor provide? — The sensor monitors capacity used (measured in mAh), real-time current draw, and battery temperature. All this data streams wirelessly to your Spektrum telemetry-capable transmitter display, providing comprehensive power system diagnostics during flight.
• Is this sensor suitable for beginners? — Yes, the Spektrum Aircraft Telemetry Flight Pack Voltage Sensor is suitable for any RC aircraft flier wanting to add professional telemetry monitoring. Installation requires no soldering or complex configuration—simply connect the EC3 connectors between your battery and ESC, then configure telemetry in your transmitter. Even beginner RC fliers can install and use this sensor successfully.
• What is the maximum burst current this sensor can handle? — The sensor is rated for a maximum burst current of 140A when used with sufficiently rated EC3 connectors and appropriate wire gauge (13 AWG is provided). This capacity handles the peak current demands of high-performance electric aircraft motors without signal degradation or safety concerns.
• Does this sensor work with LiPo batteries? — Yes, this sensor is fully compatible with LiPo flight pack batteries. Its 3.5–50V input range covers all standard LiPo configurations, and the telemetry monitoring provides valuable data for managing LiPo battery health, charge cycles, and safe operation.

Why Buy from RC Model Shop?

RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the SPM Aircraft Telemetry Flight Pack Voltage Sensor-3pin P-SPMA9570 today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.

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