Small, compact and lightweight, only 100g The first model of this size to allow remote control measurements RFI / EMI shielding One-touch calibration to oxygen levels of 21% Low power consumption

GOA-6H/GOA-6H-S Specifications Measurement range: 0.0 - 25.0 % (enhanced range: 25.1 - 42.0 %) Measurement principle: Galvanic cell Sampling method: Diffusion Display: Digital LCD (backlit) Indicating accuracy: +/- 0.5%O2 Alarm threshold: <18% Alarm signal: intermittent sound and blinking light Power source: two size AAA alkaline batteries provide over 300 hours of operation (when no alarm signal is emitted) Dimensions: 42W x 25D x 130H (mm) Weight: 100g Explosion proof: Certified by Japan Ministry of Health, Labour and Welfare (Class 2G3 Certification No.54606

Calibrates to oxygen level of 21% with one-touch Large easy-to-read display Low power consumption Sensor cable holder

GOA-40D-5 Specifications Measurement range: 0.0 - 25.0% (also measures 25.1 - 42.0% for extra range) Measurement principle: Galvanic cell Sampling method: Diffusion Display: Digital LCD (backlit) Indicating accuracy: +/- 0.5%O2（0.0 - 25.0%O2） +/-3.0%O2（25.0 - 42.0%O2） Alarm threshold: <18% Alarm signal: intermittent sound and blinking light Power source: Four size C manganese batteries provide about 4000 hours of operation (without alarm signal being emitted／25・ Dimensions 153W x 71D x 133H (mm) Weight: 1.4kg Explosion proof: Certified by Japan Ministry of Health, Labour and Welfare (Class 2G3 Certification No.T62797)