Gas detection3
Respiratory protection4
Technical rescue9
Firefighting4
Safety & environment4
Personal protective equipment2
WatchGas UNI Disposable — maintenance-free single-gas detector (up to 36 months, IP68)
The WatchGas UNI Disposable is a maintenance-free single-gas detector with a low cost of ownership — it runs for up to 36 months without replacing the sensor or battery (36-month model MP103 or 12-month MP101). It most often measures H₂S, CO or O₂, and in the full sensor table also many other toxic gases. A large, clear LCD display (30% larger than in most detectors), six bright-red LEDs, a 95 dB audible alarm and a vibrating alarm. A rugged, drop-resistant IP68 housing; fast bump testing and calibration in the UNI Mono/Multi Dock station.
The WatchGas UNI Disposable is a maintenance-free single-gas detector with a low cost of ownership — it works for up to 36 months without replacing the sensor and battery (the 36-month MP103 model or the 12-month MP101). It most often measures H₂S, CO or O₂, and in the full sensor table also many other toxic gases. A large, clear LCD display (30% larger than in most detectors), six bright red LEDs, a 95 dB audible alarm and a vibrating alarm. A rugged IP68 housing resistant to drops; quick bump test and calibration in the UNI Mono/Multi Dock station.
Key features
- Maintenance-free operation for up to 36 months (MP103) or 12 months (MP101) — without replacing the sensor and battery.
- Most often H₂S, CO or O₂; the sensor table also includes SO₂, NO₂, Cl₂, NH₃, PH₃ and others.
- Lithium battery 3.6 V (AA), non-replaceable (disposable variant).
- Large LCD display (30% larger); six bright red LEDs.
- 95 dB audible alarm @ 30 cm, visual and vibrating; TWA/STEL, over-range, low battery.
- IP68 protection rating; weight 125 g; T90 response time approx. 15 s.
- 2-point calibration; UNI Mono/Multi Dock station; ATEX/IECEx Ex ia IIC T4 Ga.
Technical specifications
| Parameter | Value |
|---|---|
| Type | maintenance-free single-gas detector (disposable) |
| Measured gases | H₂S, CO, O₂ (main); sensor table also SO₂, NO₂, Cl₂, NH₃, PH₃ and others |
| Ranges (selected) | CO 0–500/1000/2000 ppm · H₂S 0–50/100/200 ppm · O₂ 0–25/30% vol. |
| Operating time | up to 36 months (MP103) / 12 months (MP101) |
| Battery | lithium 3.6 V (AA), non-replaceable |
| Dimensions / weight | 88 × 62 × 33 mm / 125 g |
| Protection rating | IP68 |
| T90 response time | approx. 15 s |
| Alarms | 6× LED, audible 95 dB @ 30 cm, vibrating; low/high/TWA/STEL/over-range |
| Approvals | ATEX II 1G Ex ia IIC T4 Ga; IECEx; UL Class I Div 1; CE |
| Calibration / bump test | 2-point; UNI Mono/Multi Dock station |
Applications
Personal worker protection, confined spaces, service and installation work, the (petro)chemical industry, water and wastewater, the food industry.
Frequently asked questions (FAQ)
How long does the UNI Disposable last?
The MP103 version works for up to 36 months, the MP101 for up to 12 months — without replacing the sensor and battery. Once the cycle is used up, the device is replaced.
Which gases does it measure?
Most often H₂S, CO or O₂; the full sensor table also includes other toxic gases. We will help you select the version to suit the hazard.
Can I calibrate it?
Yes — the bump test and 2-point calibration are performed in the UNI Mono/Multi Dock station; SafeTech provides service and calibration.
Brand & service
WatchGas — SafeTech is a distributor and service station: sensor selection, calibration, bump tests and service (WatchGas Mono/Multi Dock docking stations).
Why SafeTech
- 23 years of experience in gas detection (the company has been operating since 2003).
- Authorised distributor and authorised service station (including Honeywell, Bieler+Lang).
- In-house service, calibration, certification and adjustment in Suchy Dwór near Gdynia — support throughout Poland.
- Training and technical support (SafeTech Safety Academy).
Availability & service — Gdynia and Tricity
WatchGas UNI Disposable — maintenance-free single-gas detector (up to 36 months, IP68) — sales, selection, calibration and service in Gdynia (Suchy Dwór, on the border of Gdynia and the Kosakowo municipality). We serve the Tricity area (Gdańsk, Sopot, Gdynia), Rumia, Reda, Wejherowo, the Pomerania province and all of Poland. Ask about our offer and availability.
Accessories and compatible equipment
- Calibration & bump test: stacja WatchGas Mono/Multi Dock, calibration gas mixtures, regulators and pressure-reducing valves for cylinders.
- Sensors & filters: replacement sensors matched to the measured gas, dust and hydrophobic filters.
- Sampling: probe, hose, aspirator bulb (for diffusion versions).
- Carrying & protection: lanyard, clip, holder, transport case, charger/power supply.
Full selection of accessories and parts for this model — request a quote.
