WatchGas SST4 Micro & SST4 Mini Multi-Gas Detectors
Reliable and robust gas detection for demanding environments.
Applications
- Oil and gas upstream
- Steel production
- Wastewater
- Shipbuilding
- Telecommunication
- Emergency personnel
- Manufacturing
- Shipping
- Energy production
Features and Benefits
Display
The SST4 features the largest LCD screen in its class, ensuring clear information display for quick decision-making. It can clearly show four gases, indicated in PPM, %vol, mg/m3, and %LEL. Correction factors can be set via the WatchGas SST application for one-to-one readings for the desired target gas. With its backlight, it can be used in dark environments and will illuminate during an alarm condition.
Sensors
Utilizing new Solid State technology, the H2S, CO, O2, and SO2 sensors offer stability and reliability in extreme temperatures and conditions. Toxic sensors have a smaller form factor, and the removal of liquid electrolyte provides a long-lasting sensor. A choice of 3 different LEL sensors offers flexibility and longer operating periods compared to conventional technology.
NFC (Near Field Communication)
NFC is built-in as standard, enabling a wide range of solutions based on your needs. Simply pair the SST4 with the WatchGas SST application to manage your fleet, perform bump tests, calibrate, assign, or download logs and data logs.
Alerts
As a safety device, it is essential that the unit clearly informs the user of the presence of gas. The SST4 has an alarm of 95 dB at 30 centimeters, which is industry standard and necessary in noisy industrial environments. High, High-High, Low, Low-Low, TWA, and STEL alarms can be configured by the user and updated directly on the unit via the SST Dock or the WatchGas SST application.
Wireless Charging
In dirty and harsh environments where gas detectors are often used, charging connectors can become damaged. The SST4 is designed with inductive charging, allowing for simple and fast charging without the risk of cable and port damage. A full charging cycle takes 2-3 hours. Various charging accessories are available.
Rugged Design
Designed with the harshest environments in mind, the SST4 offers an IP classification of 65-68. The housing is a double-injection molded enclosure, providing extra robustness without compromising quality. Screen protectors placed on both sides of the display protect the LCD screen from scratches.
Product Overview
As many industries transition from single-gas to multi-gas detection, user adaptability is crucial. The SST4 series is designed with simplicity, size, and the user in mind. With its compact yet robust design, the SST4 is available when you need it. From applications in the high temperatures of the steel industry or Hazmat users to the extreme conditions found in the oil and gas industry. With a wide range of user settings, the SST4 can be adapted to a variety of applications. Simple device setup using the WatchGas app, calibration, and bump-test records. With compliance checks, managing, maintaining, and ensuring maximum uptime for your fleet of devices has never been easier. An induction charger for your instrument is included in the box.
Specifications
| Feature | SST4 Micro | SST4 Mini |
|---|---|---|
| Size (without alligator clip) | 103.9 mm x 62.4 mm x 26.1 mm | 107.9 mm x 62.4 mm x 26.1 mm |
| Size (with alligator clip) | Add 4 mm depth | Add 4 mm depth |
| Weight | 184 g | 188 g |
| Temperature Range | -40 to +60°C / -40 to +140°F | |
| Humidity | 5% - 95% RH (non-condensing) | |
| Battery Life | LEL Low Power Catalytic: 48hr | LEL Catalytic Bead Sensor: 13hr LEL NDIR: 200hr |
| Induction Charger Time | 2-3 hours | |
| Event Logging | 100 events | |
| Data Logging | 6 months | |
| IP Rating | 65/68 | |
| Communication | NFC | |
| Certifications & Approvals |
North America: SST4 Micro / SST4 Mini (non-IR): Class I Division 1 Group A,B,C,D T4 US: Class I Zone 0 AEx ia IIC T4 Ga Canada: Ex ia IIC T4 Ga SST4 Mini (IR): Class I Division 1 Group A,B,C,D T4 US: Class I Zone 0 AEx ia op ia IIC T4 Ga Canada: Ex ia op ia IIC T4 Ga ATEX/IECEx/UKEX: LEL:LPC and LEL-CAT LEL-IR sensor II 1 G Ex ia IIC T4 Ga II 1 G Ex ia op ia IIC T4 Ga M1 Ex ia I Ma M1 Ex ia op ia I Ma -40°C ≤ Tamb ≤ +60°C EN 50270:2015+AC:2016, EN 301 489-1 V2.2.3 EN 301 489-3 V2.1.1, RoHS EN63000:2018 |
|
| Warranty | 2-year warranty as standard | |
Sensor Specifications
| Sensor Type | Measurement Range | Resolution | Low Alarm | High Alarm | TWA | STEL |
|---|---|---|---|---|---|---|
| O₂ Oxygen | 0-25% vol | 0.1% vol | 19.50% | 23.50% | N/A | N/A |
| LEL Low Power Catalytic (SST4 Micro) | 0-100% LEL | 1 %LEL | 10% | 20% | N/A | N/A |
| LEL CAT (SST4 Mini) | 0-100% LEL | 1 %LEL | 10% | 20% | N/A | N/A |
| LEL Non-Dispersive Infrared Sensor (SST4 Mini) | 0-100% LEL | 1 %LEL | 10% | 20% | N/A | N/A |
| CO Carbon Monoxide | 0-2000 ppm | 1 ppm | 35 ppm | 200 ppm | 20 ppm | 100 ppm |
| H₂S Hydrogen Sulfide | 0-500 ppm | 0.1 ppm | 10 ppm | 15 ppm | 10 ppm | 15 ppm |
| SO₂ Sulfur Dioxide | 0-100 ppm | 0.1 ppm | 5 ppm | 10 ppm | 2 ppm | 5 ppm |
Factory alarm limits can be set according to user requirements using the SST Dock and WatchGas SST application.
Accessories
- External filter (P/N: SST-MICRO-XFIL-10, SST-MINI-XFIL-10)
- SST4 lanyard bar (sold separately) (P/N: SST4-POUL-10)
- Universal cradle charger for SST Range (P/N: SST-IND-S)
- Aspirator bulb/pump with flow control for diffusion models (P/N: 7189201) - Recommended for use with Last-o-More hoses
- WatchGas SST Range 5-Way Stackable Charging Cradle (P/N: SST-STACK-CHR) (Additional required)
- SST4 Micro/Mini aluminium kit (P/N: 460039)
- SST Dock (P/N: SST-DOCK)
- WatchGas SST RTR Web Reporting Software (P/N: SST-Software)
