Spare O2-sensor for the testo 330-1 LL / -2 LL.
Replacement NO Sensor, 0 to 3,000 ppm.
Replacement Low Range NO Sensor, 0 to 300 ppm, 0.1 ppm resolution.
Replacement CO Sensor.
Replacement O2 Sensor.
TopSafe for 925 & 926.
TopSafe for 922.
Compact carrying case.
Protect your Testo instrument and probes.
Holds the Testo 440 meter & several probes.