WatchGas SST1E 2 Year H2S Gas Detector (MINI) SST1E-H-24
Description
The
WatchGas SST1E 2 Year H2S Gas Detector (MINI) is a compact, fixed-life single-gas monitor built for teams that need H2S protection without a calibration or maintenance program. Activate it once, clip it on, and it continuously detects hydrogen sulfide for two years — no charging, no sensor swaps, no calibration routines.
The SST1E-H-24 uses the same MINI form factor as the
SST1E-H — smaller and lighter than the standard SST1 body, suited for confined-space permit programs, contractor fleets, and remote job sites where bench charging infrastructure is not practical. Audible, visual, and vibration alarms activate at 10 ppm and 15 ppm, well below OSHA's 20 ppm H2S ceiling. IP67 rated against water and dust ingress. At end of the 2-year service life, replace with a fresh unit. For longer deployment cycles, the
SST1E-H-36 extends the fixed life to three years.
Key specifications: Detection range 0–100 ppm H2S | Alarm setpoints 10 ppm / 15 ppm | Resolution 1 ppm | Service life 2 years from activation | IP67 rated | No charging required | Audible, visual, vibration alarm.
Teams that want the same zero-maintenance approach in the standard SST1 form factor can compare the
SST1-H-24. Call
1-800-467-4374 to discuss fleet quantities and deployment timing.
Technical documents:
Brochure
Quick Start Guide
Frequently Asked Questions
How does a fixed-life gas detector differ from a serviceable detector?
A fixed-life detector like the SST1E-H-24 contains a sealed battery and sensor with a defined service life — in this case, two years from activation. At end of life, the unit is replaced rather than serviced. This eliminates calibration scheduling, battery replacement, and sensor-swap logistics. A serviceable detector like the
SST1E-H has a longer instrument life because its sensor and battery can be replaced and recertified.
What H2S concentration triggers the alarm on the SST1E-H-24?
The SST1E-H-24 alarms at 10 ppm (low) and 15 ppm (high). OSHA's H2S permissible exposure limit is a 20 ppm ceiling — exposure must not exceed that level at any point, not as an averaged value. The SST1E-H-24 alarms below the ceiling to give workers adequate evacuation time. Setpoints are factory-set; contact PK Safety if your confined-space permit requires a specific setpoint configuration.
Does the SST1E-H-24 require bump testing?
OSHA and NIOSH recommend bump testing gas detectors before each use to confirm the instrument responds to target gas. A bump test on the SST1E-H-24 uses H2S challenge gas at the sensor inlet; the calibration cap (SST1-CALCAP-10) routes gas to the sensor correctly. Even fixed-life monitors should be bump-tested per site safety protocols.
When should I choose the 2-year variant versus the 3-year variant?
Choose the SST1E-H-24 when your procurement cycle runs annually or bi-annually and you prefer smaller per-order quantities. Choose the
SST1E-H-36 if you want to minimize replacement frequency and the per-unit cost delta is acceptable for your program budget. Both carry the same alarm setpoints and IP67 rating.
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Description
The WatchGas SST1E 2 Year H2S Gas Detector (MINI) is a compact, fixed-life single-gas monitor built for teams that need H2S protection without a calibration or maintenance program. Activate it once, clip it on, and it continuously detects hydrogen sulfide for two years — no charging, no sensor swaps, no calibration routines.
The SST1E-H-24 uses the same MINI form factor as the SST1E-H — smaller and lighter than the standard SST1 body, suited for confined-space permit programs, contractor fleets, and remote job sites where bench charging infrastructure is not practical. Audible, visual, and vibration alarms activate at 10 ppm and 15 ppm, well below OSHA's 20 ppm H2S ceiling. IP67 rated against water and dust ingress. At end of the 2-year service life, replace with a fresh unit. For longer deployment cycles, the SST1E-H-36 extends the fixed life to three years.
Key specifications: Detection range 0–100 ppm H2S | Alarm setpoints 10 ppm / 15 ppm | Resolution 1 ppm | Service life 2 years from activation | IP67 rated | No charging required | Audible, visual, vibration alarm.
Teams that want the same zero-maintenance approach in the standard SST1 form factor can compare the SST1-H-24. Call 1-800-467-4374 to discuss fleet quantities and deployment timing.
Technical documents:
Brochure
Quick Start Guide
Frequently Asked Questions
How does a fixed-life gas detector differ from a serviceable detector?
A fixed-life detector like the SST1E-H-24 contains a sealed battery and sensor with a defined service life — in this case, two years from activation. At end of life, the unit is replaced rather than serviced. This eliminates calibration scheduling, battery replacement, and sensor-swap logistics. A serviceable detector like the SST1E-H has a longer instrument life because its sensor and battery can be replaced and recertified.
What H2S concentration triggers the alarm on the SST1E-H-24?
The SST1E-H-24 alarms at 10 ppm (low) and 15 ppm (high). OSHA's H2S permissible exposure limit is a 20 ppm ceiling — exposure must not exceed that level at any point, not as an averaged value. The SST1E-H-24 alarms below the ceiling to give workers adequate evacuation time. Setpoints are factory-set; contact PK Safety if your confined-space permit requires a specific setpoint configuration.
Does the SST1E-H-24 require bump testing?
OSHA and NIOSH recommend bump testing gas detectors before each use to confirm the instrument responds to target gas. A bump test on the SST1E-H-24 uses H2S challenge gas at the sensor inlet; the calibration cap (SST1-CALCAP-10) routes gas to the sensor correctly. Even fixed-life monitors should be bump-tested per site safety protocols.
When should I choose the 2-year variant versus the 3-year variant?
Choose the SST1E-H-24 when your procurement cycle runs annually or bi-annually and you prefer smaller per-order quantities. Choose the SST1E-H-36 if you want to minimize replacement frequency and the per-unit cost delta is acceptable for your program budget. Both carry the same alarm setpoints and IP67 rating.
The WatchGas SST1E 2 Year H2S Gas Detector (MINI) is a compact, fixed-life single-gas monitor built for teams that need H2S protection without a calibration or maintenance program. Activate it once, clip it on, and it continuously detects hydrogen sulfide for two years — no charging, no sensor swaps, no calibration routines.
The SST1E-H-24 uses the same MINI form factor as the SST1E-H — smaller and lighter than the standard SST1 body, suited for confined-space permit programs, contractor fleets, and remote job sites where bench charging infrastructure is not practical. Audible, visual, and vibration alarms activate at 10 ppm and 15 ppm, well below OSHA's 20 ppm H2S ceiling. IP67 rated against water and dust ingress. At end of the 2-year service life, replace with a fresh unit. For longer deployment cycles, the SST1E-H-36 extends the fixed life to three years.
Key specifications: Detection range 0–100 ppm H2S | Alarm setpoints 10 ppm / 15 ppm | Resolution 1 ppm | Service life 2 years from activation | IP67 rated | No charging required | Audible, visual, vibration alarm.
Teams that want the same zero-maintenance approach in the standard SST1 form factor can compare the SST1-H-24. Call 1-800-467-4374 to discuss fleet quantities and deployment timing.
Technical documents:
Brochure
Quick Start Guide
Frequently Asked Questions
How does a fixed-life gas detector differ from a serviceable detector?
A fixed-life detector like the SST1E-H-24 contains a sealed battery and sensor with a defined service life — in this case, two years from activation. At end of life, the unit is replaced rather than serviced. This eliminates calibration scheduling, battery replacement, and sensor-swap logistics. A serviceable detector like the SST1E-H has a longer instrument life because its sensor and battery can be replaced and recertified.
What H2S concentration triggers the alarm on the SST1E-H-24?
The SST1E-H-24 alarms at 10 ppm (low) and 15 ppm (high). OSHA's H2S permissible exposure limit is a 20 ppm ceiling — exposure must not exceed that level at any point, not as an averaged value. The SST1E-H-24 alarms below the ceiling to give workers adequate evacuation time. Setpoints are factory-set; contact PK Safety if your confined-space permit requires a specific setpoint configuration.
Does the SST1E-H-24 require bump testing?
OSHA and NIOSH recommend bump testing gas detectors before each use to confirm the instrument responds to target gas. A bump test on the SST1E-H-24 uses H2S challenge gas at the sensor inlet; the calibration cap (SST1-CALCAP-10) routes gas to the sensor correctly. Even fixed-life monitors should be bump-tested per site safety protocols.
When should I choose the 2-year variant versus the 3-year variant?
Choose the SST1E-H-24 when your procurement cycle runs annually or bi-annually and you prefer smaller per-order quantities. Choose the SST1E-H-36 if you want to minimize replacement frequency and the per-unit cost delta is acceptable for your program budget. Both carry the same alarm setpoints and IP67 rating.
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