Alcor 42527 240" LEAD TYPE K

The **Alcor Type K Extension Lead** (P/N **42527**) is a **240 in Type K extension lead** designed to connect compatible **thermocouple probes** to engine monitoring gauges. Manufactured from **high-quality stranded material**, the lead provides excellent flexibility and long service life. Unlike lower-quality single-stranded leads, stranded construction helps reduce the risk of breakage. The extension lead must be the **same thermocouple type** as the probe being connected. For example, a **Type K probe** must be used with **Type K leads**. Each lead length has a **different electrical resistance**, and the **combined resistance of the lead and probe must match the calibration of the gauge**. When replacing leads, select a lead with the correct resistance to suit the existing gauge calibration. For new installations, choose the lead length based on the distance between the probe and the gauge, then select a gauge with the corresponding calibration. **Calibration note:** EGT gauges with **relative lean-to-peak markings** can be recalibrated in flight by following the instructions supplied with the gauge. **TIT, CHT and EGT gauges with True Temperature markings** must either be recalibrated using an **Alcal System Tester** or returned to **Alcor** for recalibration if the combined lead and probe resistance does not match the gauge calibration. **Digital or amplified gauges** from other manufacturers are **not sensitive to lead resistance**. For these applications, the leads may be shortened as required without recalibration. --- ## Applications The Alcor 42527 Type K Extension Lead is suitable for: - Type K EGT probes - Type K TIT probes - Connecting compatible thermocouple probes to engine monitoring gauges - Replacement or new thermocouple installations --- ## Why CJ Aerospace? CJ Aerospace supplies genuine Alcor engine monitoring products backed by expert technical support and fast local delivery. - 🇦🇺 **Australian-owned & operated** - 📦 **Stocked locally in Australia for fast dispatch** - 🔧 **Technical guidance on engine instrumentation selection and compatibility** - ✈️ **Trusted by aircraft owners, maintenance organisations and aviation professionals** > ✉️ [Contact us sales@cjaerospace.com.au](mailto:sales@cjaerospace.com.au) > Need help selecting the correct Alcor extension lead? Our team is ready to assist.

- High-quality stranded construction for flexibility and long service life - Used to connect a thermocouple probe to a gauge - Must match the thermocouple type of the probe - Suitable for Type K thermocouple systems - 240 in lead length - Designed to match the required gauge calibration