# RH300-CAL Extech Accessory New

**Features:**

-   Bottles designed with small opening for snugged fit of the sensor
-   Includes 33%RH and 75%RH calibration bottles

**Specifications:**

-   Humidity: 10 to 90%RH
-   Temperature (internal): -4 to 122°F (-20 to 50°C)
-   Temperature (external): -4 to 158°F (-20 to 70°C)
-   Dew Point: -90.4 to 122°F 
-   Wet Bulb: -6.9 to 122°F 
-   Dimensions: 7 x 1.9 x 1" (178.5 x 48.4 x 24.7mm)

The RH300-CAL is a kit which contains 33% and 75% humidity calibration bottles. Used for verifying calibration of the 445815 humidity meter. Bottles have small opening designed to snuggly fit the remote sensor probe.

## Details

- **Price:** 77.99 USD
- **Vendor:** Extech
- **Type:** Oth Accs
- **Tags:** Accessories, Extech, Manufacturers, Other, Other Equipment, product_manual_group_2, Product_new

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 77.99 USD | In stock |

## Images

- RH300-CAL Extech Accessory

---

> Source: [ValueTronics](https://valuetronics.com/products/rh300-cal-extech-accessory-new)
> Updated: 2026-05-21