Senko SP2nd single gas detector, option O2 CO SO2 H2 H2S NH3


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  • The SP2nd Single Gas Detector is a rugged, compact single gas personal monitor
    designed for use in the toughest environments.
  • Its stunningly compact and lightweight design makes it ideal for use in all industries.
  • SP2nd is a maintainable monitor and is available for hydrogen sulphide (H2S), carbon monoxide (CO), Ammonia (NH3), Hydrogen (H2), Sulphur dioxide (SO2), or oxygen (O2).
  • Weighing just 120g, it is extremely durable, with high impact resistance and dust/water ingress protection, loud 90 dB alarms, a vivid red visual warning, single-button control and an easy-to-read, backlit LCD display to ensure clear viewing of gas level readings, alarm conditions and battery life.
  • Event logging is available as standard.



SENKO are a gas sensor developer and manufacturer, established in 2004 in South Korea. Their portable gas monitors are being used and marketed by many well-known companies in the gas detection industry. Their cutting-edge unique portable monitor design, provides clients with a robust, reliable, and cost-effective portable gas monitor. Korea SENKO Gas detectors are used to measure and indicate the concentration of various gases in air and can be used as an early detection system against increase in concentration of life threatening gases such as carbon dioxide (CO2), carbon monoxide (CO) and ammonia (NH3) apart from combustible gases. SENKO Gas detectors product range:
  • Senko SGT Portable Single Gas Detector
  • Senko MGT Portable Multi Gas Detector
  • Senko SP Secure Portable Gas Leak Detector
  • Senko SP2nd Portable Single Gas Detector
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Model SP2nd
SP2217 SP2227 SP2257 SP2277 SP2297 SP22N7
Measuring gas O2 CO SO2 H2 H2S NH3
Measuring type Diffusion Type
Measuring method Electrochemical cell
Measuring range 0~30% 0~500ppm 0~20ppm 0~1000ppm 0~100ppm 0~100ppm
Sensor life time > 18Month > 2 year > 2 year > 2 year > 2 year > 2 year
Response time < 15sec/
< 30sec/
< 35sec/
< 75sec/
< 30sec/
< 60sec/
Accuracy 3%/Full scale
Resolution 0.10% 1ppm 1ppm 1ppm 0.1ppm 1ppm
Parameter Control Front 2 switch (calibration, maintenance, alarm setting)
Operation mode display Visual : Digital LCD display, Trouble RedLED
Audible : buzzer (90dB @ 10cm)”
Measuring value display LCD Display (3-digit)
Alarm display Visual : alarm & status icon, Trouble RedLED
Audible : buzzer”
Alarm level set Programmable within detection range
Data Log Event Log: 20 Data
Mounting type Belt Clip
Program set mode Alarm value(1,2 alarm)
time Set
Calibration density setting
Operating temperature -20oC~50oC
Operating humidity 5% to 95% RH (Non-condensing)
Operating power CR2 Lithium Battery 3V
Battery life time CR2 Battery (3.0v) : 1.2year, At 8hours use of a day
Material PC / TPE
LCD size 27(W)*17.5(H)
Dimensions 54(W) X 91(H) X 32(D) mm
Weight 120g (Including Battery)
Approval Ex ia IIC T4 IP67(KGS, ATEX)


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