---

Specifications: 

---

Built-in Button, 6 Character LCD Screen
Security Algorithm: TOTP
OTP Length: 6 digits
OTP Time interval: 30 seconds
Hash algorithm: sha1 (default) or sha256 (set using NFC burner)
Dimensions: 49.8 x 26 x 8.25mm
Water & dust resistance: IP67
Operating Temperature:  0°C .. 50°C
Tamper Evident / Tamper Protection
Battery Type: Lithium Magnesium
Battery Lifetime:   5-6 Years (depending on usage)
Programmable:  Yes 
Maximal seed length: 63 bytes (126 hex / 101 base32)
Time sync: Yes [unrestricted: setting time will keep the seed intact]

---

NFC Burner for iOS

The burner app for iPhones is ready and can be installed from Apple AppStore. In addition to burning the seeds, the app will also allow configuring advanced settings, such as the hash algorithm (sha-1 or sha-2), the time offset (30 seconds or 60 seconds), the display power-off time out (from 15 seconds to 120 seconds) and time synchronization.

Compatibility

All iPhones starting from iPhone 7 support NFC (iPhone 6 and 6S have the required hardware but Apple somehow botched the implementation so it’s not usable to third parties). None of the iPad models has the chip, nor do iPod touch devices. While our burner app will most probably work on all devices mentioned above, we were only able to test on the following models so far: iPhone 8, iPhone X, iPhone 11

---