SST1/SST1E Serviceable Models
WatchGas SST1/SST1E serviceable single gas detectors offer a broader range of target gases. Typically, up to 23% lighter and smaller than comparable detectors and equipped with a replaceable sensor and battery. These detectors stay in your fleet well beyond the impressive 3-year battery runtime. Delivering the lowest cost of operation in their class, these serviceable detectors are ideal for industrial plant operations and fleets of any size.
Two models, multiple gas options; each developed from an actual customer need.
SST1 (micro sensors): H2S, CO, O2, SO2, CH4S, H2, PH3 NH3
SST1E (mini sensors): H2S, CO, O2, SO2, Cl2, ETO, HCl, HCN, NO, NO2, NH3, Xs
Learn how SST1/SST1E can fit into the bigger WatchGas Ecosystem and Solutions.
Scroll down to learn more.
- Prevent toxic gas exposures with earlier sensor warnings – up to 20 extra seconds to evacuate
- Up to 67% less test gas consumed can save you 1000s and reduces worker testing bottlenecks
- Cumulative background exposures awareness for additional insights for worker and potential leak awareness
- Better visibility for quicker decisions – up to 54% larger display than comparable detectors
- STEL & TWA Alarm Readings
- Proactive safety, compliance and management with the optional RTR solution
Description
The SST1E and SST1 fit within the entire WatchGas SST Range of single and multi-gas portable detectors and the optional RTR industry solution — giving your team a data-based, scalable platform built around how you actually work.
WatchGas enables safety managers to further shift their focus from compliance tracking and policing to proactive safety leadership, making better decisions with total compliance awareness and the data and reporting they need.
Operations managers gain the visibility to plan and manage detector fleets with predictable costs.
Funnel your workflows with WatchGas task-specific devices for:
- Easier data gathering, less paperwork.
- Reduced gas testing worker bottlenecks
- Accurate compliance awareness
Everything you need to elevate worker safety, streamline operations, increase business continuity, and achieve the lowest cost of fleet ownership.
Product information
Your operation. Your solution. Your budget.
Start with any SST Range gas detector and build from there.
Choose value-added accessories to suit your specific application.
Choose optional WatchGas Safety Ecosystem devices (dock, kiosk, app):
- SST Dock – universal SST docking station
- Compliance Kiosk – Tap&Go your data
- Device Link App – Tap&Go your data
Add the optional RTR Software for the complete and affordable solution; flexible enough to scale across multiple plants globally, or down to a field office or individual remote field workers.
- RTR software – proactive decisions and reporting
The WatchGas RTR Solution uniquely enables you to choose to self-manage your fleet or hand maintenance management it over to a WatchGas distributor.
| Size | SST1: 83 x 49 x 20 mm / 3.3 x 1.9 x 0.8 in; SST1E: 83 x 49 x 24 mm / 3.3 x 1.9 x 0.9 in |
| Weight | SST1: 88 g / 3.1 oz; SST1E: 90 g / 3.2 oz |
| Operating temperature | H2S, CO, O2, SO2: -40 ~ +60 °C / -40 ~ +140 °F; Others: -20 ~ +50 °C / -4 ~ +122 °F |
| Humidity | 5 ~ 95% r.h. (non-condensing) |
| Response time T90 | SST1 T90 (sec) H2S < 10; CO < 10; O2 < 10; SO2 < 55; CH4S < 10; H2 (low) < 10; H2 (high) < 55; NH3 < 130; PH3 < 10; |
| Response time T90 | SSTE T90 (sec) H2S < 20; CO < 20; O2 < 20; SO2 < 45; Cl2 < 40; ETO < 150; HCl < 75; HCN < 70; HCN F < 120; NH3 < 60; NO2 < 15; NO < 30; XS < 60; |
| Battery life | O2: 2 years*; H2S, CO, SO2, NH3, H2, PH3, CH2S: up to 3 years* * = dependent on gas alarms; Note: Battery lifetime is based on normal mode, depending on settings and alarm functions lifetime may be reduced. |
| Event logging | Last 100 events |
| IP | 65/68 |
| Communication | NFC |
| Shelf life | 1 year |
| Certifications and approvals | ATEX, IECEX, UKEX : II 1 G Ex ia IIC T4 Ga I M1 Ex ia I Ma |
| North America: Int.Safe: Cl I Dv 1, Gr A,B,C,D T4 Cl I Zn 0, AEx ia IIC T4 Ga UL 61010-1, CAN/CSA-C22.2 NO. 61010-1-12/A1:18, UL 60079-0, UL 60079-11, CSA 60079-0, CSA 60079-11 | |
| EMC Directive 2014/30/EU | |
| (PESO) Ex ia IIC T4 Ga | |
| (Korea) Ex ia IIC T4 | |
| (Brazil) Ex ia I Ma Ex ia IIC T4 Ga | |
| (ABS Type Approved) 24-00T2542343-1-PDA | |
| Warranty | Instrument: 3 years; Battery: 2 years (based on 2 min of alarm per day); Sensors: H2S, CO, O2, SO2, H2 Low and High Range: 2 years; Others: 1 year |
| Sensor type | Gas measuring range | Low alarm level | High alarm level | STEL | TWA | Resolution |
| Micro Sensors | ||||||
| H2S | 0 - 500 ppm | 10 ppm | 15 ppm | 15 ppm | 10 ppm | 0.1 ppm |
| CO | 0 - 2000 ppm | 35 ppm | 200 ppm | 100 ppm | 20 ppm | 1 ppm |
| O2 | 0 - 25% Vol | 19.5% Vol | 23.5% Vol | N/A | N/A | 0.1% Vol |
| SO2 | 0 - 100 ppm | 5 ppm | 10 ppm | 5 ppm | 2 ppm | 0.1 ppm |
| CH4S | 0 - 100 ppm | 2 ppm | 5 ppm | 1 ppm | 0.5 ppm | 0.01 ppm |
| H2 | 0 - 1000 ppm | 100 ppm | 400 ppm | N/A | N/A | 1 ppm |
| H2 high range | 0 - 20000 ppm | 4000 ppm | 8000 ppm | N/A | N/A | 100 ppm |
| NH3 | 0 - 100 ppm | 25 ppm | 50 ppm | 35 ppm | 25 ppm | 0.5 ppm |
| PH3 | 0 - 20 ppm | 1 ppm | 2 ppm | 1 ppm | 0.3 ppm | 0.01 ppm |
| Mini Sensors | ||||||
| H2S | 0 - 300 ppm | 10 ppm | 15 ppm | 15 ppm | 10 ppm | 0.1 ppm |
| CO | 0 - 1500 ppm | 35 ppm | 200 ppm | 100 ppm | 20 ppm | 1 ppm |
| O2 | 0 - 25% Vol | 19.5% Vol | 23.5% Vol | N/A | N/A | 0.1% Vol |
| SO2 | 0 - 40 ppm | 5 ppm | 10 ppm | 5 ppm | 2 ppm | 0.1 ppm |
| Cl2 | 0 - 50 ppm | 0.5 ppm | 1 ppm | 1 ppm | 0.5 ppm | 0.1 ppm |
| ETO | 0 - 100 ppm | 2 ppm | 5 ppm | 2 ppm | 1 ppm | 0.5 ppm |
| HCl | 0 - 50 ppm | 2 ppm | 5 ppm | 5 ppm | 1 ppm | 0.2 ppm |
| HCN (unfiltered) | 0 - 50 ppm | 5 ppm | 10 ppm | 4 ppm | 4 ppm | 0.1 ppm |
| HCN F* | 0 - 50 ppm | 5 ppm | 10 ppm | 4 ppm | 4 ppm | 0.1 ppm |
| NH3 | 0 - 100 ppm | 25 ppm | 50 ppm | 35 ppm | 25 ppm | 0.1 ppm |
| NO | 0 - 100 ppm | 25 ppm | 50 ppm | 50 ppm | 25 ppm | 0.2 ppm |
| NO2 | 0 - 20 ppm | 2 ppm | 5 ppm | 5 ppm | 3 ppm | 0.1 ppm |
| XS** | 0 - 100 ppm | 25 ppm | 50 ppm | 50 ppm | 25 ppm | 0.5 ppm |
| All alarm levels can be set using the WatchGas Device Link App or SST Dock | * Hydrogen Cyanide sensor with an integrated H2S filter to eliminate cross interference. | ** High-stability broad-band sensor for certain organic gases and vapors. |
SST1 Serviceable: Single gas device with TWA and STEL option. Can be set with WatchGas SST Range application
SST1-H – WatchGas SST1 H2S 0-500ppm Serviceable – Real Time Display (Hydrogen Sulfide)
SST1-M – WatchGas SST1 CO 0-2000 ppm Serviceable – Real Time Display (Carbon Monoxide)
SST1-O – WatchGas SST1 O2 0-25%vol. Serviceable – Real Time Display (Oxygen)
SST1-S – WatchGas SST1 SO2 0-100ppm Serviceable – Real Time Display (Sulfur Dioxide)
SST1-A – WatchGas SST1 NH3 0-100ppm Serviceable (Ammonia)
SST1-P – WatchGas SST1 PH3 0-20ppm Serviceable (Phosphine)
SST1-H2 – WatchGas SST1 H2 0-1000ppm Serviceable (Hydrogen)
SST1-H2HR – WatchGas SST1 H2 0-20,000ppm High Serviceable (Hydrogen)
SST1-MM – WatchGas SST1 CH4S 0-100ppm Serviceable (Methanethiol AKA Methyl Mercaptan)
Please contact WatchGas or your local WatchGas distributor for the order information on accessories and spare parts.
The device comes in yellow as standard.
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System overview
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WatchGas SST RTR Web Reporting Software 
The Record To Report (RTR) solution is an easy-to-use, cost-efficient software with many features. These include fleet management, fleet status, gas alarms, predictive service notification, email alerts, event logs, and unit assignments. Furthermore, it allows the safety manager to utilize the SST Range compliance check function to ensure the units are in use.