Dual-Gas Detection
Detects both carbon monoxide and methane in one water-heater safety module.
ZE33 CO and CH4 Water Heater Safety Detection Module
The ZE33 is a dual-gas module for detecting carbon monoxide from incomplete combustion and methane leakage in household gas water heaters. It combines electrochemical CO sensing, semiconductor combustible-gas sensing, PWM output and audible-visible alarm functions.
BrandWinsen
Sensing PrincipleElectrochemical, Semiconductor
Target GasCO, CH4
Product TypeCO and CH4 Alarm Module
Gas Sensing for OEM Integration
Product Overview
A purpose-built CO and methane safety module for gas-water-heater leakage and incomplete-combustion alarms.
The module monitors CO generated by incomplete combustion while also detecting methane leakage, allowing one integrated board to address two major water-heater safety risks.
Defined alarm concentrations, PWM output and onboard sound and light indication support rapid integration into appliance control and alarm systems.
Designed for Reliable Integration
Key Features
Defined Alarm Levels
Provides two CO alarm levels and a methane alarm point based on percentage of LEL.
PWM Digital Output
Outputs a PWM signal for connection to the appliance controller.
Audible and Visual Alarm
Integrates sound and light alarm output functions.
Application-Specific Design
Developed for household gas-water-heater leakage and incomplete-combustion detection.
Customizable Module
Official product information notes customizable design support.
Typical Use Cases
Applications
Gas Water Heaters
Incomplete Combustion Alarms
Household Methane Leakage Detection
Appliance Safety Control
Official Product Parameters
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | ZE33 |
| Detected Gases | Carbon monoxide (CO), methane (CH4) |
| Detection Principles | Electrochemical CO sensor; semiconductor combustible-gas sensor |
| Detection Range | CO: 0–500 ppm; CH4: 0–5000 ppm |
| CO Alarm 1 | 250±50 ppm |
| CO Alarm 2 | 350±50 ppm |
| CH4 Alarm Concentration | 8%±3% LEL |
| Interfering Gas | Alcohol, etc. |
| Output | PWM |
| Alarm Mode | Audible and visual alarm |
| Working Voltage | 5 V DC |
| Preheat Time | CO: 30 s; CH4: 3 min |
| Response Time | ≤60 s |
| Recovery Time | ≤30 s |
| Working Temperature | -10°C to 55°C |
| Working Humidity | 15–90% RH, non-condensing |
| Storage Temperature | -10°C to 55°C |
| Expected Life | 5 years in air |
Specifications are based on the official Winsen product page or product manual. Confirm the latest datasheet, calibration requirements, communication protocol and mechanical drawing before final product design.
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