PRESSURE : KGS / CM2 GRADE : DJ A AA AAA P20 WORKING 20 16 13 9 7 TESTING 40 32 25 18 15 WEIGHT : KGS/PER 30 METERS (APPROX) GRADE DJ A AA AAA P20 4`` 16 3`` 15 13.8 2.5`` 15 12.3 12 11.5 1.8 2`` 1

*This detector is operating by temperature differential sensing theory, with ULapproval sensor to connect with metal. It`s made by high quality material, excellent contact to enhance its ability to o

*This detector is operating by temperature differential sensing theory, with ULapproval sensor to connect with metal. It`s made by high quality material, excellent contact to enhance its ability to o

* Heated sensing diaphragm can oparate consecutively for unlimited times, not effected by temperature,especially the conducting part use gold coating to avoid oxidation. * Use alloy air equalizer to

* Heated sensing diaphragm can oparate consecutively for unlimited times, not effected by temperature,especially the conducting part use gold coating to avoid oxidation. * Use alloy air equalizer to

* Easy installation: Install directly to proper location without any wiring. * Longer operating life: Minimum one-year battery life under normal operating. * Low battery warning: Unit ``beeps`` every

Characteristic : (1) Flame-resistant frame and pc cover (UL-94 Standard) (2) Easy maintenance (3) Hangings type (4)ABC fire retardant material

Characteristic (1) Frame material :VO GRADE, ABS fire retardant(UL-94 rules) C (2) Lamp :Select 6V4W tube, light head and shell lodge by spinning, keep in good repair C (3) Reserve power :Cells of wa

Characteristic (1) Frame material :VO GRADE, ABS fire retardant(UL-94 rules) C (2) Lamp :PL13W fluorescent light (900LUM) C (3) Reserve power :Cells of water and maintenance free, fit in UL ISO-14