GfG Smart Area Monitor EC35 – Hydrogen Fluoride (HF) Fixed Gas Transmitter**

This **GfG Instrumentation EC35** Smart Area Monitor is a fixed gas detection transmitter calibrated for **Hydrogen Fluoride (HF)** in the **0-10.0 PPM** range.

**Key Features:**

- Rugged blue explosion-proof aluminum housing

- Digital display with easy menu navigation (TEST, QUIT, INFO, ZERO, SPAN, MENU)

- Stainless steel sensor housing

- Clearly labeled **"10.0 PPM HF"**

- Designed for continuous industrial area monitoring of toxic gases

**Condition:** 

✅ **Removed in working condition**. It was fully operational when taken out of service. The unit powers up, the display is clear, and all buttons respond normally. There is typical light industrial wear on the housing but nothing that affects functionality. Buyers responsibility to verify calibrations.

**Important Notes:** 

This is a fixed 4-20mA transmitter. It may require proper wiring, power supply (typically 24VDC), and periodic calibration for continued use. The internal sensor is the original HF electrochemical cell (these are consumable and may need replacement after extended use). Sold as-is but with confidence it was working at removal.

**Perfect for:**

- Replacement or spare in existing GfG fixed gas detection systems

- Chemical plants, semiconductor manufacturing, or labs using HF

- Industrial safety equipment