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KWJ Engineering

Interlink Technology Platform

Gas Detection Solutions

Advanced gas detection instrumentation and electrochemical sensing programs for safety, environmental monitoring, and OEM development.

Core Focus

Gas Detection and Environmental Monitoring

Delivery Model

Custom Engineering + Product Integration

KWJ Engineering logo

Multi-decade gas detection R&D and instrumentation platform. Acquired by Interlink Electronics in 2022.

Pocket H2S 300

Wearable Instruments

H2S

Pocket H2S 300

The Pocket H2S 300 is the world's smallest and most affordable hydrogen sulfide detector. With a range of 0.0–50.0 ppm, dual alarm levels at 10 and 20 ppm, and 8-hour TWA tracking at 10 ppm, it delivers essential H2S safety monitoring in a device the size of a key fob weighing less than 1 oz. Designed for oil and gas, wastewater, and confined space entry applications.

  • Range: 0.0–50.0 ppm H2S
  • First alarm at 10 ppm, second alarm at 20 ppm
  • 8-hour TWA warning alarm at 10 ppm
  • Key-fob size, weighs less than 1 oz
  • Ideal for oil & gas, wastewater, confined space

Technical Specifications

Detection Range

0.0–50.0 ppm H2S

First Alarm

10 ppm

Second Alarm

20 ppm

TWA Alarm

8-hour at 10 ppm

Weight

< 1 oz

Contact for Pricing

Request technical and commercial details

Interlink product programs are typically scoped and quoted based on application context, deployment requirements, and expected production profile. Submit this form and the team will follow up with pricing and fit guidance.

Include in your request:

  • Application environment and target gas profile
  • Expected operating range and integration constraints
  • Prototype timeline and estimated annual volume
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