# Gas Meter Training Simulator — Hazmat Training Simulator > Hazmat Training Simulator (iPhone/iPad app by John TRAMELL.) - Source: https://appshunter.io/ios/app/gas-meter-training-simulator/id6762577521 (this page in markdown: same URL + `.md`) - Developer: [John TRAMELL](https://appshunter.io/developer/1868095422) - Category: Education, Utilities - Price: $0.99 - Age rating: 4+ - Requires: iOS 17.0 · 8 MB - Languages: English - Released: 2026-04-29 - Data updated: 2026-08-12 - User reviews in markdown: https://appshunter.io/ios/app/gas-meter-training-simulator/id6762577521/reviews.md ## What is Gas Meter Training Simulator? Gas Meter Simulator puts a working multi-gas instrument in your pocket so firefighters, HazMat technicians, and instructors can build real air-monitoring judgment without burning calibration gas or tying up a live meter. Run it solo to learn the instrument, or connect two devices: one trainee holds the meter as the Sampler while an instructor drives the atmosphere as the Controller. NEW IN 3.0: SPATIAL SCENARIOS Preprogram how every gas reads as a crew moves from the street to the source. The trainee drags a position slider, or an instructor advances them stop by stop, and the meter tells the story of the atmosphere in real time. A library of 23 built-in incidents ships with the app: carbon monoxide, ammonia, chlorine, hydrogen sulfide, phosphine, ozone, fuel and solvent vapor, confined-space asphyxiants, clandestine labs, a working fire, and a worst-case unknown atmosphere. BUILD YOUR METER Before a run, the trainee chooses which sensors their instrument carries, from quick presets to any custom array. A crew on a standard 5-gas rig and a crew on a corrosive loadout see the very same incident in completely different ways, driving home the lesson that your sensor array has to match the call. TRUE SENSOR BEHAVIOR Every incident is modeled as a full atmosphere. Cross-sensitivity artifacts read on the channels they actually affect, so trainees learn to spot a false cyanide reading driven by an acid gas, a carbon monoxide ghost from hydrogen, or a chlorine number that is really an oxidizer. Readings also shift with sampling height, so heavier-than-air gases climb with the nozzle down and lighter-than-air gases with the nozzle up. ALSO INSIDE A sensor training library covering the full detector suite. Guided scenarios with stop-and-think coaching and debriefs. A meter operation guide and diagnostic pattern reference. Scenario import from a simple text file. Alarm lights, peak and min capture, fresh-air calibration, and pump-fault drills. Built by working responders for the way monitoring is actually taught. Not a game. A trainer. ## Version history (last 5 releases) ### 3.1 — 2026-08-08 This is the biggest update yet. SPATIAL SCENARIOS Program how the atmosphere changes from the entry point to the source, then move a trainee along the route and watch every channel respond in real time. One walk, a whole plume. A redesigned route-line control shows each stop as a station, with a clean "you are here" marker and the current location called out above the line. FULL 13-CHANNEL ATMOSPHERE Every scenario now models all sensors at once. Two trainees on the same call see different numbers depending on the meter they carry. BUILD YOUR OWN METER Pick your sensor array before training starts and lock it in for the session. Standard 5-Gas, Fire/CO, and Corrosive presets, each with a photoionization channel, or build a custom stick. VAPOR DENSITY AND SAMPLE POSITION Sample low, level, or high and the readings shift the way real gas stratifies. Heavier-than-air product pools low, lighter product climbs. 23 READY-TO-RUN INCIDENTS Ammonia cold storage, chlorine, fuel vapor, and more, each with realistic cross-sensitivity behavior built in. ALSO IN THIS UPDATE The screen now stays awake during a live session, on-device alarm lights, faster reading response, and a rebuilt controller screen. Train the decision, not just the number. ### 3.0 — 2026-08-03 Version 3.0 turns every incident into a walk-through. SPATIAL SCENARIOS Preprogram how each gas reads as a crew moves from the entry point to the source. Drag the position slider or tap a stop, and the meter tells the story of the atmosphere as the team advances. BUILD YOUR METER Trainees choose their sensor array before a run. A crew on a 5-gas rig and a crew on a corrosive loadout see the same incident completely differently, so trainees learn to match the array to the call. TRUE VAPOR-DENSITY BEHAVIOR Readings shift with sampling height. Heavier gases climb with the nozzle down, lighter gases with the nozzle up, per sensor, live. 23 GROUNDED INCIDENTS A full built-in library covering carbon monoxide, ammonia, chlorine, hydrogen sulfide, phosphine, ozone, fuel and solvent vapor, confined-space asphyxiants, clandestine labs, and a working fire, each with realistic cross-sensitivity artifacts. Also new: import your own scenarios from a text file, on-meter alarm lights, a peak and min reset, and a cleaner Controller layout. ### 2.5 — 2026-06-14 Version 2.5 adds the calibration and fault-handling reps a real instrument demands. NEW: Fresh-Air Calibration Run a true-to-life fresh-air zero from the meter's CALIBRATION menu, with a timed zeroing sequence. Calibrating in a contaminated atmosphere fails, just like the real thing, so trainees learn to zero only in clean air. NEW: Pump Stall / Flow Fault Recognize a PUMP FAULT, clear the blockage, and resume. Build the muscle memory to troubleshoot a blocked inlet or filter before it costs you a reading. FOR INSTRUCTORS (Controller mode) Prompt a fresh-air calibration on any connected trainee, inject a pump stall on demand, and arm a forced calibration failure to test recognition and response. Watch each trainee's live status: zeroing, cal pass, cal fail, or pump fault. Plus reliability and polish improvements throughout. Train hard. Stay safe out there. ### 2.4 — 2026-05-28 Guided Scenarios A new structured training mode that walks trainees through a complete HazMat atmospheric monitoring response, step by step. Select a scenario, verify your sensor cache, and run the call. Sensor Cache Check Before every Guided Scenario launches, the app confirms which sensors are loaded — with a tailored reminder for NH₃ configurations. Build the habit of knowing your instrument before the incident. Improved Scenario Controls Long-pressing MODE during a Guided Scenario no longer powers off the device, preventing accidental shutdowns mid-drill. Controllers stay in control. ### 2.3 — 2026-05-18 New App Store Icon, updated graphics on the Sampler Screen with a realistic looking device. Corrected errors in the self assessments in the sensor training module. ## Related topics [gas meter training simulator](https://appshunter.io/ios/topics/gas-meter-training-simulator) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-12.*