The Honeywell E3H2 is a replacement hydrogen (H2) sensor cartridge for the E3Point gas monitor. It detects hydrogen gas in commercial and industrial spaces. As a result, it restores or upgrades a unit’s H2 detection. The cartridge fits inside the E3Point single-point monitor.
About the Honeywell E3H2 sensor
The cartridge uses a catalytic-bead element to sense hydrogen. Specifically, it measures from 0 to 100% LEL with 0.5% LEL resolution. It ships pre-calibrated and works out of the box. Therefore, installation is a plug-and-play swap.
Key details
- Replacement hydrogen (H2) sensor cartridge for the E3Point monitor
- Catalytic-bead sensing element
- Measuring range 0–100% LEL, 0.5% LEL resolution
- Operating temperature −40° to 50°C (−40° to 122°F)
- Honeywell part number 1309A0039
- Pre-calibrated, plug-and-play installation
Order the E3H2 to replace an aged or drifting hydrogen sensor. First, remove power from the E3Point before service. Then seat the new cartridge in place. Finally, restore power and verify readings.
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | 0.1 lbs |
|---|---|
| Dimensions | 2.25 × 2.25 × 2.25 in |
| Condition | New |
| Manufacturers | Honeywell |
| Part Type | Replacement Part |






