SemeaTech, a world leader in sensing technologies, offers a full line of electrochemical sensors for detecting hazardous materials and gases for work safety and environmental protection.
SemeaTech has built a wide network of industry experts and technologists to provide the company with guidance for customer needs and market requirements in order to release the right products featuring minimized environmental impact, no application errors, higher resolutions, increased sensitivity, improved stability, better exchangeability, wider measuring ranges, etc.
It is recommended that you mount the SemeaTech electrochemical sensors in a Socket where they can be removed and replaced when their working life expires (electrolyte is used up).
4 Series Electrochemical Gas Sensors
| Size | Product | Gas | Range | Resolution | Response | Part No. |
|---|---|---|---|---|---|---|
| 4 Series | 4CO-50 | CO | 0-50 ppm | 0.15 ppm | ≤30s | 051-1200-000 |
| 4CO-100 | 0-100 ppm | 0.15 ppm | ≤30s | 051-1100-000 | ||
| 4CO-500 | 0-500 ppm | 1 ppm | ≤15s | 051-0000-000 | ||
| 4CO-500S | 0-500 ppm | 1 ppm | ≤20s | |||
| 4CO-1000 | 0-1000 ppm | 1 ppm | ≤15s | 051-0500-000 | ||
| 4CO-2000 | 0-2000 ppm | 10 ppm | ≤30s | 051-0100-000 | ||
| 4CO-5000 | 0-5000 ppm | 10 ppm | ≤30s | 051-0900-000 | ||
| 4CO-10000 | 0-10,000 ppm | 10 ppm | ≤30s | 051-0800-000 | ||
| 4CO-20000 | 0-20,000 ppm | 10 ppm | ≤30s | 051-1000-000 | ||
| 4CH2H3CL-20 | C2H3CL Vinyl Chloride | 0-20ppm | 067-0200-000 | |||
| 4C2H3CL-100 | 0-100 ppm | 067-0000-000 | ||||
| 4CH2O-10 | CH2O Formaldehyde | 0-10 ppm | 072-0000-000 | |||
| 4CH2O-50 | 0-50 ppm | 072-0100-000 | ||||
| 4ETO-10 | C2H4O (ETO) Ethanol, etc. | 0-10 ppm | 0.1 ppm | ≤120s | 055-0000-000 | |
| 4ETO-100 | 0-100 ppm | 1 ppm | ≤120s | 055-0100-000 | ||
| 4ETO-500 | 0-500 ppm | 10 ppm | ≤120s | 055-0200-000 | ||
| 4CH3SH-10 | CH3SH Methanethiol | 0-10 ppm | 065-0000-000 | |||
| 4CL2-10 | CL2 Chlorine | 0-10 ppm | 062-0100-000 | |||
| 4CL2-50 | 0-50 ppm | 061-0400-000 | ||||
| 4CL2-200 | 0-200 ppm | 061-000-000 | ||||
| 4CLO2-1 | ClO2 Chlorine Dioxide | 0-1 ppm | 061-0100-000 | |||
| 4CLO2-10 | 0-10 ppm | 061-0400-000 | ||||
| 4CLO2-50 | 0-50 ppm | 061-0000-000 | ||||
| 4H2-1000 | H2 Hydrogen | 0-1000 ppm | 10 ppm | ≤70s | 054-0000-000 | |
| 4H2-2000 | 0-2000 ppm | ≤70s | 054-0400-000 | |||
| 4H2-40000 | 0-40000 ppm | 80 ppm | ≤70s | 054-0100-000 | ||
| 4CL2-10 | HCl Hydrogen Chloride | 0-10 ppm | 063-0000-000 | |||
| 4CL2-200 | 0-200 ppm | 063-0200-000 | ||||
| 4HCL-50 | HCN Hydrogen Cyanide | 0-50 ppm | 064-0000-000 | |||
| 4HF-10 | HF Hydrogen Fluoride | 0-10 ppm | 069-0000-000 | |||
| 4HF-100 | 0-100 ppm | 069-0100-000 | ||||
| 4H2S-50 | H2S Hydrogen Sulfide | 0-50 ppm | 0.1 ppm | ≤25s | 052-0400-000 | |
| 4H2S-100 | 0-100 ppm | 0.1 ppm | ≤30s | 052-0000-000 | ||
| 4H2S-500 | 0-500 ppm | 0.1 ppm | ≤45s | 052-1500-000 | ||
| 4H2S-1000 | 0-1000 ppm | 1 ppm | ≤45s | 052-0100-000 | ||
| 4H2S-2000 | 0-2000 ppm | 1 ppm | ≤45s | 052-0600-000 | ||
| 4H2S-5000 | 0-5000 ppm | 1 ppm | ≤45s | 052-0700-000 | ||
| 4NH3-20 | NH3 Ammonia | 0-20 ppm | (0 Bias) | 059-0900-000 | ||
| 4NH3-100 | 0-100 ppm | (0 Bias) | ≤40s | 059-0000-000 | ||
| 4NH3-500 | 0-500 ppm | (0 Bias) | ≤40s | 059-0500-000 | ||
| 4NH3-1000 | 0-1000 ppm | (0 Bias) | ≤40s | 059-0100-000 | ||
| 4NH3-2000 | 0-2000 ppm | (0 Bias) | 059-0600-000 | |||
| 4NH3-100L | NH3 (Long Life) Ammonia | 0-100 ppm | (0 Bias) | 059-1200-000 | ||
| 4NH3-500L | 0-500 ppm | (0 Bias) | 059-1100-000 | |||
| 4NH3-1000L | 0-1000 ppm | (0 Bias) | 059-1300-000 | |||
| 4NH3-2000L | 0-2000 ppm | (0 Bias) | 059-1400-000 | |||
| 4NH3-5000L | 0-5000 ppm | (0 Bias) | 059-1500-000 | |||
| 4NO-5 | NO Nitrous Oxide | 0-5 ppm | 058-0300-000 | |||
| 4NO-250 | 0-250 ppm | 058-0000-000 | ||||
| 4NO-2000 | 0-2000 ppm | 058-0100-000 | ||||
| 4NO2-5 | NO2 Nitrogen Dioxide | 0-5 ppm | 057-0300-000 | |||
| 4NO2-20 | 0-20 ppm | 0.1 ppm | ≤30s | 057-0000-000 | ||
| 4NO2-2000 | 0-2000 ppm | 5 ppm | ≤60s | 057-0100-000 | ||
| 4O2-25 | O2 Oxygen | 0-25% | 0.1% | ≤20s | 053-0000-000 | |
| 4O3-1 | O3 Ozone | 0-1 ppm | 068-0400-000 | |||
| 4O3-10 | 0-10 ppm | 068-0000-000 | ||||
| 4O3-100 | 0-100 ppm | 068-0100-000 | ||||
| 403-1000 | 0-1000 ppm | |||||
| 4PH3-20 | PH3 Phosphine | 0-20 ppm | 060-0000-000 | |||
| 4PH3-1000 | 0-1000 ppm | 060-0100-000 | ||||
| 4PH3-2000 | 0-2000 ppm | 060-0400-000 | ||||
| 4SO2-5 | SO2 Sulphur Dioxide | 0-5 ppm | 056-0400-000 | |||
| 4SO2-20 | 0-20 ppm | 0.1 ppm | ≤45s | 056-0000-000 | ||
| 4SO2-100 | 0-100 ppm | 056-0500-000 | ||||
| 4SO2-2000 | 0-2000 ppm | ≤45s | 056-0100-000 |
4 Series Low Explosion Level (LEL) Combustable Gas Sensors
(Catalytic)
| Size | Product | Gas | Range | Resolution | Response | Part No. |
|---|---|---|---|---|---|---|
| 4 Series | 4LEL-D-2.5/3.0 | Combustible Gas | 090-DX00-000 | |||
| 4LEL-H-2.0 | Combustible Gas | 090-H000-000 |
7 Series Electrochemical Sensors
| Size | Product | Gas | Range | Resolution | Response | Part No. |
|---|---|---|---|---|---|---|
| 7 Series | 7CO-50 | CO Carbon Monoxide | 0-50 ppm | 0.5 ppm | ≤30s | 051-1300-000 |
| 7CO-1000 | 0-1000 ppm | 0.5 ppm | ≤30s | 051-0200-000 | ||
| 7CO-2000 | 0-2000 ppm | 0.5 ppm | ≤30s | 051-0600-000 | ||
| 7CO-10000 | 0-10,000 ppm | 5 ppm | ≤30s | 051-0700-000 | ||
| 7C2H3CL-50 | C2H3Cl Vinyl Chloride | 0-50 ppm | 1 ppm | ≤120s | 067-0300-000 | |
| 7C2H3CL-100 | 0-100 ppm | ≤120s | 067-0100-000 | |||
| 7CH2O-10 | CH2O Formaldehyde | 0-10 ppm | 072-0200-000 | |||
| 7CH2O-50 | 0-50 ppm | 072-0300-000 | ||||
| 7ETO-20 | C2H4O (ETO) Ethanol, etc. | 0-20 ppm | 0.1 ppm | ≤120s | 055-0400-000 | |
| 7ETO-100 | 0-100 ppm | 1 ppm | ≤120s | 055-0300-000 | ||
| 7CH3SH-10 | CH3SH Methanethiol | 0-10 ppm | 0.1 ppm | ≤60s | 065-0100-000 | |
| 7CL2-20 | Cl2 Chlorine | 0-20 ppm | 0.1 ppm | ≤30s | 062-0300-000 | |
| 7CL2-50 | 0-50 ppm | ≤30s | 062-0400-000 | |||
| 7CLO2-1 | ClO2 Chlorine Dioxide | 0-1 ppm | 061-0200-000 | |||
| 7CLO2-20 | 0-20 ppm | 0.1 ppm | ≤60s | 061-0300-000 | ||
| 7H2-1000 | H2 Hydrogen | 0-100 ppm | 054-0200-000 | |||
| 7H2-10000 | 0-10000 ppm | 0.03 ppm | ≤100s | 054-0300-000 | ||
| 7H2-20000 | 0-20000 ppm | 054-0500-000 | ||||
| 7HCL-20 | HCl Hydrogen Chloride | 0-20 ppm | 063-0400-000 | |||
| 7HCL-50 | 0-50 ppm | 1 ppm | ≤70s | 063-0100-000 | ||
| 7HCL-100 | 0-100 ppm | 063-0300-000 | ||||
| 7HCN-50 | HCN Hydrogen Cianide | 0-50 ppm | 0.2 ppm | ≤120s | 064-0100-000 | |
| 7HF-10 | HF Hydrogen Floride | 0-10 ppm | 0.5 ppm | ≤120s | 069-0300-000 | |
| 7HF-50 | 0-50 ppm | 0.5 ppm | ≤120s | 069-0200-000 | ||
| 7H2S-50 | H2S Hydrogen Sulfide | 0-50 ppm | 0.1 ppm | ≤30s | 052-0300-000 | |
| 7H2S-100 | 0-100 ppm | 0.25 ppm | ≤30s | 052-0500-000 | ||
| 7H2S-200 | 0-200 ppm | ≤30s | 052-0200-000 | |||
| 7H2S-500 | 0-500 ppm | ≤30s | 052-1300-000 | |||
| 7H2S-1000 | 0-1000 ppm | ≤30s | 052-0800-000 | |||
| 7H2S-2000 | 0-2000 ppm | ≤30s | 052-0900-000 | |||
| 7H2S-5000 | 0-5000 ppm | ≤30s | 052-1100-000 | |||
| 7H2S-10000 | 0-10000 ppm | ≤30s | 052-1400-000 | |||
| 7NH3-100 | NH3 Amonia | 0-100 ppm | 0.1 ppm | ≤40s | 059-0200-000 | |
| 7NH3-200 | 0-200 ppm | ≤60s | 059-0800-000 | |||
| 7NH3-500 | 0-500 ppm | 2 ppm | ≤40s | 059-0400-000 | ||
| 7NH3-1000 | 0-1000 ppm | ≤40s | 059-0300-000 | |||
| 7NH3-2000 | 0-2000 ppm | 5 ppm | ≤90s | 059-0700-000 | ||
| 7NO-100 | NO Nitrogen Oxide | 0-100 ppm | 1 ppm | ≤60s | 058-0200-000 | |
| 7NO2-5 | NO2 Nitrogen Dioxide | 0-5 ppm | 25 ppb | ≤30s | 057-0400-000 | |
| 7NO2-20 | 0-20 ppm | 0.1 ppm | ≤30s | 057-0200-000 | ||
| 7NO2-100 | 0-100 ppm | 0.5 ppm | ≤120s | 057-0500-000 | ||
| 7NO2-500 | 0-500 ppm | |||||
| 7O3-1 | O3 Ozone | 0~1 ppm | 0.02 ppm | ≤45s | 068-0300-000 | |
| 7O3-20 | 0-20 ppm | ≤45s | 068-0200-000 | |||
| 703-100 | 0-100 ppm | 0.5 ppm | ≤45s | 068-0500-000 | ||
| 7PH3-5 | PH3 Phosphine | 0-5 ppm | 060-0300-000 | |||
| 7PH3-2000 | 0-2000 ppm | 1 ppm | ≤60s | 060-0200-000 | ||
| 7SO2-5 | SO2 Sulfer Dioxide | 0-5 ppm | 0.2 ppm | ≤45s | 056-0600-000 | |
| 7SO2-20 | 0-20 ppm | 0.1 ppm | ≤45s | 056-0200-000 | ||
| 7SO2-2000 | 0-2000 ppm | 5 ppm | ≤60s | 056-0300-000 |
7 Series Smart Gas Sensor Module
Electro Optical Components, Inc. introduces the 7ECM-SMART Sensor Module combining a 7-Series electrochemical sensor (EC), a PCB assembly and a metal closure. It integrates the entire gas detection process of signal acquisition, amplification, filtration, data conversion, temperature compensation, etc. all in one. It is easy to use and tremendously improves the user experience in gas detection applications.
Stack Emission Monitoring Electrochemical Sensors
The 3 Series (CO, SO2, NO2 and NO) are designed for stack emission monitoring. They can be used in the environment with those high concentration gases for a long time. The sensor electrodes are much bigger and deposited with thicker chemical compounds. The electrolyte used in the 3 Series Gas Sensors can sustain tougher environmental conditions than the 4 and 7 Series sensors. The 3 Series can continuously detect those high concentration gases. The 4 and 7 Series are designed to work in the relative clean environment most of time but detect toxic gases if there are leakages.
| Size | Product | Gas | Range | Resolution | Response | Part No. |
|---|---|---|---|---|---|---|
| 3 Series | 3CO-10000 | CO | 0-10000 | 1ppm | ≤30s | 051-3000-000 |
| 3CO-20000 | CO | 0-20000 | 1ppm | |||
| 3NO-2000 | NO | 0-2000 | 1 ppm | ≤25s | 058-3000-000 | |
| 3NO2-500 | NO2 | 0-500 | 0.5 ppm | ≤35s | 057-3000-000 | |
| 3SO2-500 | SO2 | 0-500 | ≤35S | |||
| 3SO2-2000 | SO2 | 0-2000 | 1 ppm | ≤35s | 056-3000-000 |
Commercial Low Cost CO Sensor
This sensor is smaller in size and lower in cost than the 4 Series sensors and works ideally for commercial and residential buildings to meet the building codes.
- Small and low cost.
- It gives a readout of CO concentration for applications with LCD displays.
- Typically it is used in garages, offices and family homes.
| Product | Gas | Range | Resolution | Response | Part No. |
|---|---|---|---|---|---|
| Commercial CO Sensor | CO | 0-500 | 1 ppm | ±30s | 051-0100-000 |
Sensor Module PCB
| Product | Part No. | |||||
|---|---|---|---|---|---|---|
| SM ECM-SMART | A01-0000-000 | |||||
| SM ECM-12C | A01-0100-000 |
Application Notes:
Photoionization (PID) Sensors
SemeaTech 4S PID Sensor is a simple plug-and-play sensor and able to deliver a dynamic and dependable response to thousands of volatile organic compounds (VOCs) across many diverse applications. The sensor incorporates lamps of exceptional brightness and stability enabling detection of less volatile and sensed compounds reliably over an extended period of time.
Application Notes:
