- Perfect tool to quickly know the distance, area and volume of a room - LCD with Backlight. - Power supply: 1 x 9v Alkaline Battery (battery not included) - Measure Distance: 2 Feet to 60 Feet.( About 0.8 to 18 meters) - Area, volume, addition, subtraction calculation. - Frequency: 40kHz (ultrasonic pickup) - Resolution 0.01M or 1/2 Inch. - Accuracy:+/- 0.5%25 +/-1 - Auto OFF: switches off if you do not press any key for about 1 min. - Your distance measurer transmits ultrasonic waves to a point you want to measure. - It measures the time taken by the waves to reflect and then calculates and re-transcribes the distance. - Units of Measure : Feet/Meters Agar lebih aman lagi paket Anda tambahkan Plastik Bubble / Kardus ke Add Cart juga yah, produk tambahan pelindung packing bisa dilihat pada etalase Pilihan Packing Tambahan. Ketentuan : - Tidak ada garansi untuk barang-barang tersebut. - No retur (Barang yang sudah dibeli tidak dapat dikembalikan) - Ketentuan Belanja lengkap silahkan baca pada Ketentuan Belanja Circle Store.