# 5609-400-D Fluke Test Lead New

**Features:**

-   \-328 to 1,238°F (-200 to 670°C) (3.94in (100mm) minimum immersion)
-   ±0.01 short-term stability
-   Calibration not included

**Accessories (Included):**

-   Fluke 5609-400-D Secondary PRT with 5-Pin DIN for Tweener Thermometers, 400 x 6mm, Calibration Options

**Specifications:**

-   Temperature Range: -328 to 1,238°F (-200 to 670°C)
-   Nominal Resistance at 0.01°C: 100Ω ±0.5Ω
-   Temperature Coefficient: 0.0039250Ω/Ω/°C
-   Short-Term Repeatability: ±0.01 at 0.010°C; ±0.02°C at max temp
-   Drift: ±0.01 at 0.010°C:  ±0.02°C at max temp
-   Hysteresis: ±0.01°C maximum
-   Sensor Length: 1.2in ±0.2in (30mm ±5mm)
-   Sensor Location: 0.1in ±0.1in (3mm ±1mm from tip)
-   Minimum Insulation Resistance: 500MΩ at 23°C, 10MΩ at 670°C
-   Transition Junction Dimensions: 2.8 x 0.49in (71 x 12.5mm)
-   Minimum Immersion Length: (<5 mK Error) 3.9in (100mm)
-   Maximum Immersion Length: 12in (305mm)
-   Response Time: 12 seconds typical
-   Self Heating:(In 0°C Bath): 50mW/°C
-   Lead-Wire Cable Type: Teflon, 24AWG
-   Lead-Wire Length: 6ft (1.8m)
-   Lead-Wire Temperature Range: -58 to 482°F (-50 to 250°C)
-   Calibration not included

The 5609-400-D is a test lead from Fluke. Achieve high-precision measurements over a wide temperature range with this stable secondary PRT, which features a 5-pin DIN connection and works with tweener thermometers. It has a 400mm long sheath with a 6mm diameter.

## Details

- **Price:** 1858.0 USD
- **Vendor:** Fluke
- **Type:** Test Lead
- **Tags:** Accessories, Fluke, Manufacturers, Other Equipment, product_manual_group_2, Product_new, Test Lead

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1858.00 USD | In stock |

## Images

- 5609-400-D Fluke Test Lead

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> Source: [ValueTronics](https://valuetronics.com/products/5609-400-d-fluke-test-lead-new)
> Updated: 2026-05-21