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Portable Gas Detectors

SP-220 Series Gas Leak Detector

Pumped Ultra-Sensitive Leak Detector for Hydride Gases, Super-Toxics, Hydrogen, Refrigerants, Natural Gas, and LPG

The Riken Keiki SP-220 Series are state of the art Gas Leak Detectors

The SP-220 has a rugged, light weight design as well as a fast response time. Ease of operation will make pinpointing hard-to-find, low concentration gas leaks a simple procedure.

SP-220 Sensitive Leak Detector Display Diagram

Product Features

Riken Keiki SP-220-SC Gas Leak Detector

The lightweight SP-220-SC is a highly sensitive Gas Leak Detector for Toxic, Combustible and CFC Freon gases.

The SP-220 Type SC version uses a hot-wire semiconductor sensor (MOS) that can detect a range of target gases.

Select from any of the forty listed gases for a direct reading referenced from a single calibration gas (PH3).

This new model SP-220-SC replaces the SP-205ASC used by the semiconductor industry for high sensitivity leak checking of hydride gases.

Riken Keiki SP-220-M / L / ML Gas Leak Detector

The SP-220 Type M / L and ML are highly sensitive Gas Leak Detectors for Natural Gas as well as LPG

Riken Keiki SP-220- F Gas Leak Detector

The SP-220 Type F is a version exclusively for CFC Gases.

Riken Keiki SP-220-H Gas Leak Detector

The SP-220 Type H2 is a version for Hydrogen

Riken Keiki SP-220-FUM

The SP-220 Type FUM is a version for Fumigation gases and can detect 7 Fumigation Gases including Phosphine as well as Sulfuryl Fluoride.

General Features

The SP-220 Series has an integral pump, LCD display with backlight, moulded rubber cover as well as an LED light and weather protection.
The Instruments have an IP-55 rating for dust and water ingress as well as Snap logging (128 readings) and data-logging (256 data points). These features allow for accurate record keeping in addition to testing accountability.

The SP-220 also has the ability to zero out background gas to help identify if you are getting closer to a leak source.


No. Gas name Display Concentration
Display 1
Display 2
1 Phosphine PH3 0.1 2
2 Acetone C3H6O 1 10
3 Arsine AsH3 0.2
4 Ammonia NH3 10
5 Isobutane i-C4H10 1 10
6 Isopropyl alcohol IPA 1 10
7 Carbon monoxide CO 10 30
8 Ethyl alcohol C2H5OH 1 10
9 Ethylene C2H4 1 10
10 Vinyl chloride VCM 1
11 Methyl chloride CH3CL 1 10
12 Xylene C8H10 1 10
13 Ethylene oxide EO 1 10
14 Silane SiH4 0.5
15 Methyl bromide CH3Br 1 20
16 Hydrogen H2 1 10
17 Trichloroethylene C2HCL3 10
18 Toluene C7H8 1 10
19 1,2-Dichloroethane EDC 1 10
20 Sulfur dioxide SO2 1
21 Propane C3H8 5 20
22 R-134a R-134a 50 250
23 R-22 R-22 10 50
24 R-32 R-32 10 50
25 n-hexane n-C6H14 10 50
26 Benzene C6H6 0.5 10
27 Formaldehyde HCHO 10 50
28 Methane CH4 1 20
29 Methyl alcohol CH3OH 1 10
30 Methyl ethyl ketone MEK 1 10
31 Hydrogen sulfide H2S 0.1
32 Diborane B2H6 0.1
33 Germane GeH4 0.2
34 Hydrogen bromide HBr 10
35 Hydrogen chloride HCL 10
36 R-407C R-407C 10 50
37 Hydrogen selenide H2Se 0.5
38 R-410A R-410A 10 50
39 R-404A R-404A 10 50
40 2,3,3,3-Tetrafluoropropene CH2C2F4 10 30
Note 1) ✔ means there is sensitivity, but no value can be given.
Note 2) Alarm accuracy, response time etc. are confirmed with calibration gas (PH3)
Note 3) The measuring results of the gas selection are intended for guidance only. The most accurate measurement is for calibration gas (PH3).

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