A concave mirror helps improve image brightness and resolution in these advanced optical instruments
or any craft that requires precise dimensions
Grooved slots hold individual slides in place Soft lining ensures that slides will not slip Identification card
It is a motor driven mechanical compactor useful for compaction into 100 mm dia moulds
HABOTEST HT56 Pro Combustible Gas Detector Liquefied Petroleum Gas Natural Gas Alarm, HT56 Pro Option:HT56 Pro A concave mirror helps improve1. Widely used in gas pipeline leak detection, household gas prevention, gold mining, tunnel mine operations, oil and gas extraction, hazardous goods storage warehouses, etc. 2. It is convenient for users to safely detect various combustible gases, such as: methane, carbon monoxide, gasoline, ethylene oxide, etc. 3. Range: 0 1000PPM 4. Sensitivity: 500PPM 5. Battery: 2x1. 5V AAA batteries (not included in this product) 6. Response time: about 5s 7.