For more than 10 years, Runleader has focused on product development and manufacturing in the fields of hour meter, battery indicator, multi-function meter, controller, which widely used for garden machinery industry, outdoor power vehicle equipment, transportation vehicles, such as: generators, pumps,chainsaws,outboards,lawn mowers,compressors and others. RL-HM016B is a wireless vibration activated hour meter which can track the hours running for different equipments. This device have strong water resistance by 100% epoxy resin,it can keep the normal working condition upon 10 meters underwater up to waterproof rate IP68. It attached the built-in battery CR2050 with long running lifetime. Runleader RL-HM016B Digital Wireless Vibration Activated Hour Meter, Programmable Vibration Sensitivities,Waterproof Design. Product Features TOT hours: It begin to track the total running hours when detect the vibration signal of machine. The total hours range: 0 to 99,999 hours. PAR hours: It record an resettable hours value during single working period.Programmable sensitivities: It can be programmed the vibration sensitivities to high or low sensitivities according to different machines, which can be calibrate the hours value more accuracy.Lock function: You can lock the display to avoid the strong shock during transportation, meanwhile save the battery lifetime when it off working. Runleader has established a complete laboratory for testing and improving the product's quality Buttons Testing The buttons can works well after 10,000 repeated taps with a 300g weight. High & Low Temperature Testing It can works well in temperature environments temperature: -40 °C - +70 °C Drop Testing Favorable anti-vibration performance can suffer strong vibrations when the equipments is working. Anti-vibration Testing It can keep the housing and LCD display window in good condition upon vibration amplitude 1.52mm after 6 hours testing period. Static Interference Testing It keep the good working condition upon a partial electromagnetostatic field. Yellowing Resistance Testing It can keep good working condition from simulative strong UV ray lightening. It also pass another considerate test for each functions sections and attached accessories. RL-HM016B Digital Vibration Activated Hour Meter RL-HM015B Digital Vibration Activated Hour Meter RL-HM016B1 Digital Vibration Activated Hour Meter RL-HM016C Digital Vibration Activated Hour Meter RL-HM075B Digital Vibration Activated Hour Meter Add to Cart Add to Cart Buying Options Buying Options Add to Cart Customer Reviews 4.4 out of 5 stars 791 3.7 out of 5 stars 34 — 4.5 out of 5 stars 132 4.2 out of 5 stars 15 Price $20.99$20.99 $17.50$17.50 — no data — no data $19.99$19.99 TOT/JOB range 0 to 99,999 H 0 to 99,999 H 0 to 99,999 H 0 to 99,999 H 0 to 99,999 H SVC range / Single group,0 to 1000 H Single group,5 to 1000H / / Vibration sensitivity Low,High Low, Medium and High Low,Medium,High Low, Medium and High / PC display window protection / / ✓ ✓ ✓ Lock function ✓ ✓ ✓ ✓ / Screen size 26.00mm*13.30mm（1.02 inches*0.52 inch） 28.00mm*13.00mm（1.10 inches*0.51 inch） 26.00mm*13.30mm（1.02 inches*0.52 inch） 26.00mm*13.30mm（1.02 inches*0.52 inch） 23.70mm*10.00mm(0.93 inch* 0.39 inch) Product size 68.50mm*33.50mm*14.00mm(2.70 inches*1.32inches*0.55inch） 67.00*33.00*14.00mm(2.64 inches*1.30 inches*0.55 inch） 68.50mm*33.50mm*14.00mm(2.70 inches*1.32inches*0.55inch） 68.50mm*33.50mm*14.00mm(2.70 inches*1.32inches*0.55inch） 37.00mm*35.00mm*16.5mm(1.46 inches*1.38 inches*0.65 inch) Waterproof rate IP68 IP68 IP68 IP68 IP68 Built-in battery type CR2050 360mAh CR2430 270mAh CR2050 360mAh CR2050 360mAh CR2050 360mAh Weight 40.00g(1.41 ounces) 32.00g(1.13 ounces) 40.00g(1.41 ounces) 40.00g(1.41 ounces) 32.00g(1.13 ounces)