



💼 Stay ahead of the curve with precision humidity insights!
The Extech EXTRH300 is a lightweight, battery-free humidity meter designed for professionals who demand precise environmental data. It simultaneously displays relative humidity, temperature, and dew point with 0.1°C resolution, features a protective twist-lock sensor cap, and includes a Data Hold function for easy reading capture—making it an essential tool for accurate climate monitoring.












| Colour | As shown in the image |
| Brand | Extech |
| Item Weight | 0.02 Kilograms |
| Battery Description | No batteries required |
| Mounting Type | Tabletop |
| Voltage | 1.5 Volts (DC) |
| Manufacturer | Extech Instruments |
| UPC | 793950443002 796841974500 |
| Global Trade Identification Number | 00793950443002 |
| Country of Origin | USA |
| Model number | RH300 |
| Number of Memory Sticks | 1 |
| Item Weight | 20 g |
| Product Dimensions | 7.87 x 4.83 x 22.86 cm; 20 g |
| Item model number | RH300 |
| Item Height | 9 Inches |
| Item Width | 1.9 Inches |
| Included Components | 1 |
| Battery type | No batteries required |
| Are batteries included? | No |
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