# RD300 Extech Detector New

**Features:**

-   Detects all standard refrigerants using a heated diode sensor
-   LED light at probe tip (with on/off switch) for working in dimly lit areas
-   LEDs display user-selectable High/Medium/Low levels with sensitivity of 0.25/0.50/0.99 oz per year
-   Audible and Visual alert with mute button
-   Low battery indicator
-   Field replaceable sensor and LED light tip
-   Complete with leak test bottle, 9V battery, and protective hard carrying case

**Specifications:**

-   Warm up Time: 90 seconds
-   Auto Power OFF Automatic shut off after 10 minutes
-   Low Battery Indication: LOW-BATT light switches ON
-   Power Supply: 9V Battery
-   Battery Life: 13 hours of continuous use 
-   Operating Conditions: 0°C to 50°C (32°F to 122°F) <80%RH
-   Storage Conditions: -10°C to 60°C (14°F to 140°F) <70%RH
-   Flexible Probe Length: 450mm (18")
-   Dimensions: 184 x 70 x 40 mm (7.2″ x 2.8″ x 1.6 ″)

The RD300 Refrigerant Leak Detector detects leakages from air-conditioning units and cooling systems. It's easy to use and is ideal for detecting leaks from air-conditioning units and cooling systems that use all standard refrigerants. The multi-colored LED light bar indicates the level of leaking refrigerant detected by the RD300. The built-in, bright LED convenience light located at the sensor tip illuminates dimly lit inspection areas. Complete with leak test bottle, 9V battery, and protective hard carrying case.

## Details

- **Price:** 255.99 USD
- **Vendor:** Extech
- **Type:** Detector
- **Tags:** Detector, Extech, Manufacturers, Other Equipment, product_manual_group_2, Product_new

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 255.99 USD | In stock |

## Images

- RD300 Extech Detector

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> Source: [ValueTronics](https://valuetronics.com/products/rd300-extech-detector-new)
> Updated: 2026-05-21