The SENKO SP-SGTP is a replaceable single-gas detector for continuous diffusion-type monitoring of oxygen deficiency or a selected toxic gas. Unlike a disposable detector, its sensor and battery can be replaced, extending the usefulness of the instrument for organisations that prefer a serviceable personal-monitoring platform.
Key Features
- Replaceable sensor and battery for longer-term serviceability.
- Electrochemical diffusion sensing for oxygen or selected toxic gases.
- LED, audible, and vibrating alarms when gas concentration exceeds set points.
- IP67 rubberised enclosure for demanding field conditions.
- IR-Link configuration and data-log management.
- Docking-station support for calibration and testing.
- CO and H₂S models can operate without calibration for two years according to Senko specifications.
Applications
- Personal monitoring during industrial maintenance
- Confined-space work and entry support
- Oil and gas, chemical, utilities, and construction sites
- Organisations needing replaceable sensors and batteries rather than disposable units
Specification Summary
| Model | SP-SGTP |
| Sensor / method | Electrochemical / diffusion |
| Supported gases | O₂, CO, H₂S, H₂, SO₂, NH₃, NO₂, and other configured sensor options |
| Dimensions | 49(W) × 85(H) × 40(D) mm |
| Weight | 93 g toxic-gas version; 104 g O₂ version, including battery and clip |
| Operating life | 24 months based on two minutes of alarm per day; sensor and battery are replaceable |
| Operating temperature | -40°C to +50°C for CO, H₂S, H₂, NH₃, and NO₂; -35°C to +50°C for O₂ and SO₂ |
| Ingress protection | IP67 |
| Data logging | Most recent 30 alarms |
| Alarm | Visual, vibrating, and audible 90 dB alarm at 10 cm |
| Certification | IECEx, ATEX, CSA/UL, CNEx/CPA, INMETRO, PESO, RoHS2, RCM, REACH, WEEE, FCC |
What It Solves
Teams that need to maintain a detector fleet may prefer replaceable sensors and batteries over disposable units. SP-SGTP keeps the compact personal-monitoring format while allowing service and component replacement to support longer ownership and controlled maintenance programmes.
Request a quote for SP-SGTP sensor options, docking equipment, and availability.

