M2 Series
Explosion proof housing, patented water repellent sensor coating.
Operates independent of controller. Available for LEL HC, H2S, CO, O2, & ppm HC
Long life sensors (2+ years typical)
S-Series
Basic 4-20 mA transmitters for the detection of common gas hazards.
LEL (catalytic), LEL (IR) CH4, LEL (IR) HC, O2, H2S, CO, or CO2 (IR) versions available.
Direct Connect
LEL / H2 / O2 / CO / H2S Gas Sensors
The sensors can be mounted directly to the controllers as a complete stand alone system, or they can be mounted to explosion proof junction boxes for remote detection
M Series
Low Cost H2S or CO Transmitter
This CO/H2S transmitter is a highly reliable and very cost effective basic 4-20 mA transmitter for the detection of carbon monoxide and hydrogen sulfide.
H2 Specific
Single Point Stand Alone Monitor
LEL or PPM detection ranges available.
A perfect low cost solution for hydrogen detection in battery rooms.
35-3000RK
Sample Draw Sensor / Transmitter
A compact sample draw detector assembly with a built-in pump that accepts a 24VDC input
Wastewater System
Single Point Stand Alone Monitor
LEL, LEL IR, O2, H2S, CO, are available
The tri-sensor head can be used either indoors or outdoors
GD-70D
Multifunctional, Intelligent Sensor
Sample-draw transmitter 
offers an array of sensor technologies.
Common platform
Universal main unit
Large size
LCD screen
PS-2
Single Point Stand Alone Monitor
LEL or PPM detection ranges available.
A perfect low cost solution for hydrogen detection in battery rooms.
RI-215
Non-dispersive infrared 
absorption sensor is used to provide direct measurements through diffusion or sample draw monitors.
EC-500
Indoor Carbon Monoxide Monitor
Carbon Monoxide (CO) monitor with a range of 0-150 ppm.
CO-500 Model
GD-K71D
A complete sample drawing gas monitor, including digital readout and alarm relays.
GD-K71D
GD-K7D2
Sample-Draw Sensor/ Transmitter
A sample draw assembly for use with a wide variety of electrochemical sensors for toxic gas detection.
GD-K7D2
GD-K8A
a diffusion style toxic gas detection transmitter ideally suited to meet your toxic gas detection needs. GD-K8A